General Description
NOTE: These products are now obsolete. The ADC12L030 family is 12-bit plus sign successive approximation A/D converters with serial I/O and configurable input multiplexers. These devices are fully tested with a single 3.3V power supply. The ADC12L032, ADC12L034 and
ADC12L038 have 2, 4 and 8 channel multiplexers, respectively.
Differential multiplexer outputs and A/D inputs are available at the MUXOUT1, MUXOUT2, A/DIN1 and A/DIN2 pins. The ADC12L030 has a two channel multiplexer with the multiplexer outputs and A/D inputs internally connected. On request, these A/Ds go through a self calibration process that adjusts linearity, zero and full-scale errors to less than ±1⁄2 LSB each.
The analog inputs can be configured to operate in various combinations of single-ended, differential, or pseudodifferential modes. A fully differential unipolar analog input range (0V to +3.3V) can be accommodated with a single +3.3V supply. In the differential modes, valid outputs are obtained even when the negative inputs are greater than the positive because of the 12-bit plus sign two’s compliment output data format.
The serial I/O is configured to comply with NSC’s MICROWIRE™ and Motorola’s SPI standards. For voltage references, see the LM4040, LM4050 or LM4041 data sheets.
The ADC12L032 and the ADC12L034 are not recommended for new designs and are presented for reference only.

Features
* 0V to 3.3V analog input range with single 3.3V supply
* Serial I/O ( MICROWIRE and SPI Compatible)
* 2 or 8 channel differential or single-ended multiplexer
* Power down mode
* Programmable acquisition time
* Variable digital output word length and format
* No zero or full scale adjustment required

Key Specifications
* Resolution 12-bit plus sign
* 12-bit plus sign conversion time 8.8 μs (min)
* 12-bit plus sign sampling rate 73 kHz (max)
* Integral linearity error ±1 LSB (max)
* Single supply 3.3V ±10%
* Power consumption, active 15 mW (max)
* Power consumption, pwr down 40 μW (typ)

Applications
* Portable Medical instruments
* Portable computing
* Portable Test equipment

ADC12L030CIWM
ADC12L032CIWM
ADC12L034CIWM
ADC12L038CIWM

General Description
NOTE: This is Advance Information for a product currently in development. ALL specifications are design targets and are subject to change.
The ADC12EU050 is a 12-bit, ultra-low power, octal A/D converter for use in high performance analog to digital applications.
The ADC12EU050 uses an innovative continuous time sigma delta architecture offering ultra low power consumption and an alias free sample bandwidth up to 25MHz. The input stage of each channel features a proprietary system to ensure instantaneous recovery from overdrive. Instant overload recovery (IOR) with no memory effect guarantees the elimination of phase errors resulting from out of range input signals.
The ADC12EU050 reduces interconnection complexity by using programmable serialized outputs which offer the industry standard LVDS and SLVS modes. Power consumption of only 44mW per channel(@ 50MSPS) gives a total chip power consumption of 350mW. The ADC12EU050 can operate entirely from a 1.2V supply, although a separate output driver supply of up to 1.8V can be used. The device operates from -40 to +85 °C and is supplied in a 10 x 10 mm2, 68 pin package.

Features
* CTΣΔADC architecture with 40-50MSPS throughput
* Anti-alias filter free Nyquist sample range
* Unique Instant Overload Recovery (IOR)
* Wide 2.10 VPP input range
* 1.2V supply voltage
* Integrated precision LC PLL
* Serial control via SPI compatible interface

Applications
* Battery powered portable systems
* Medical imaging, ultrasound
* Industrial ultrasound, such as non-destructive testing
* Communications

ADC12EU050CILQ

General Description
The LM20242 is a full featured 1MHz capable synchronous buck regulator capable of delivering up to 2A of load current.
The current mode control loop is externally compensated with only two external components, offering both high performance and ease of use. The device is optimized to work over the input voltage range of 4.5V to 36V making it well suited for high voltage systems.
The device features internal Over Voltage Protection (OVP) and Over Current Protection (OCP) circuits for increased system reliability. A precision Enable pin and integrated UVLO allows the turn on of the device to be tightly controlled and sequenced. Startup inrush currents are limited by both an internally fixed and externally adjustable soft-start circuit. Fault detection and supply sequencing are possible with the integrated PGOOD circuit.
The LM20242 is designed to work well in multi-rail power supply architectures. The output voltage of the device can be configured to track a higher voltage rail using the SS/TRK pin. If the output of the LM20242 is pre-biased at startup it will not sink current to pull the output low until the internal soft-start ramp exceeds the voltage at the feedback pin.
The LM20242 is offered in an exposed pad 20 pin TSSOP package that can be soldered to the PCB, eliminating the need for bulky heatsinks.

Features
* 2A Output Current, 3.7A peak current
* 130 mΩ/110 mΩ integrated power MOSFETs
* 1.5% output voltage accuracy
* Current Mode Control, selectable compensation
* Resistor programmed, 1MHz capable oscillator
* Synchronous rectifier with diode emulation
* Adjustable output voltage down to 0.8V
* Compatible with pre-biased loads
* Programmable soft-start with external capacitor
* Precision enable pin with hysteresis
* OVP, UVLO inputs and PGOOD output
* Internally protected with peak current limit, thermal shutdown and restart
* Accurate current limit with frequency foldback
* Non-linear current mode slope compensation
* eTSSOP-20 exposed pad package

Applications
* Simple to design, high efficiency point of load regulation from a 4.5V to 36V bus
* High Performance DSPs, FPGAs, ASICs and Microprocessors
* Communications Infrastructure, Automotive

LM20242MH
LM20242MHE
LM20242MHX

General Description
The ADC08L060 is a low-power, 8-bit, monolithic analog-todigital converter with an on-chip track-and-hold circuit. Optimized for low cost, low power, small size and ease of use, this
product operates at conversion rates of 10 MSPS to 60 MSPS while consuming just 0.65 mW per MHz of clock frequency, or 39 mW at 60 MSPS. Raising the PD pin puts the ADC08L060 into a Power Down mode where it consumes about 1 mW.
The unique architecture achieves 7.6 Effective Bits. The ADC08L060 is resistant to latch-up and the outputs are shortcircuit proof. The top and bottom of the ADC08L060s reference ladder are available for connections, enabling a wide range of input possibilities. The digital outputs are TTL/ CMOS compatible with a separate output power supply pin to support interfacing with 1.8V to 3V logic. The output coding is straight binary and the digital inputs (CLK and PD) are TTL/ CMOS compatible.
The ADC08L060 is offered in a 24-lead plastic package (TSSOP) and is specified over the industrial temperature range of −40°C to +85°C. An evaluation board is available to assist in the evaluation of the ADC08L060.

Features
* Single-ended input
* Internal sample-and-hold function
* Low voltage (single +3V) operation
* Small package
* Power-down feature

Applications
* Digital Imaging
* Set-top boxes
* Portable Instrumentation
* Communication Systems
* X-ray imaging
* Viterbi decoders

ADC08L060CIMT
ADC08L060CIMTX
ADC08L060EVAL

General Description
The LM1203B is an improved version of the popular LM1203 wideband video amplifier system. The device is intended for high resolution RGB CRT monitors. In addition to three matched video amplifiers, the LM1203B contains three gated differential input black level clamp comparators
for brightness control and three matched attenuator circuits for contrast control. Each video amplifier contains a gain set or ``Drive'' node for setting maximum system gain or providing
gain trim capability for white balance. The LM1203B also contains a voltage reference for the video inputs. The LM1203B is pin and function compatible with the LM1203.

Applications
* High resolution RGB CRT monitors
* Video AGC amplifiers
* Wideband amplifiers with gain and DC offset controls

Features
* Three wideband video amplifiers (100 MHz @ b3 dB)
* Matched (g0.1 dB or 1.2%) attenuators for contrast control
* Three externally gated comparators for brightness control
* Provisions for individual gain control (Drive) of each video amplifier
* Video input voltage reference
* Low impedance output driver
* Stable on a single sided board

General Description
The LM20154 is a full featured 1 MHz synchronous buck regulator capable of delivering up to 4A of continuous output current. The current mode control loop can be compensated
to be stable with virtually any type of output capacitor. For most cases, compensating the device only requires two external components, providing maximum flexibility and ease of
use. The device is optimized to work over the input voltage range of 2.95V to 5.5V making it suited for a wide variety of low voltage systems.
The device features internal over voltage protection (OVP) and over current protection (OCP) circuits for increased system reliability. A precision enable pin and integrated UVLO allows the turn on of the device to be tightly controlled and sequenced. Start-up inrush currents are limited by both an internally fixed and externally adjustable Soft-Start circuit.
Fault detection and supply sequencing is possible with the integrated power good circuit.
The LM20154 features an open drain SYNCOUT pin which provides an external clock that matches the switching frequency of the device but is shifted by 180 degrees.
The LM20154 is designed to work well in multi-rail power supply architectures. The output voltage of the device can be configured to track a higher voltage rail using the SS/TRK pin.
If the output of the LM20154 is pre-biased at startup it will not sink current to pull the output low until the internal soft-start ramp exceeds the voltage at the feedback pin.
The LM20154 is offered in an exposed pad 16-pin eTSSOP package that can be soldered to the PCB, eliminating the need for bulky heatsinks.

Features
* Input voltage range 2.95V to 5.5V
* Accurate current limit minimizes inductor size
* 96% peak efficiency at 1.0 MHz switching frequency
* Frequency synchronization output
* 32 mΩ integrated FET switches
* Starts up into pre-biased loads
* Output voltage tracking
* Peak current mode control
* Adjustable output voltage down to 0.8V
* Adjustable Soft-Start with external capacitor
* Precision enable pin with hysteresis
* Integrated OVP, UVLO, power good and thermal shutdown
* eTSSOP-16 exposed pad package

Applications
* Simple to design, high efficiency point of load regulation from a 5V or 3.3V bus
* High Performance DSPs, FPGAs, ASICs and microprocessors
* Broadband, Networking and Optical Communications Infrastructure

LM20154MH
LM20154MHE
LM20154MHX

General Description
The LM20145 is a full featured adjustable frequency synchronous buck regulator capable of delivering up to 5A of continuous output current. The current mode control loop can be compensated to be stable with virtually any type of output capacitor. For most cases, compensating the device only requires two external components, providing maximum flexibility and ease of use. The device is optimized to work over the input voltage range of 2.95V to 5.5V making it suited for a wide variety of low voltage systems.
The device features internal over voltage protection (OVP) and over current protection (OCP) circuits for increased system reliability. A precision enable pin and integrated UVLO allows the turn-on of the device to be tightly controlled and sequenced. Start-up inrush currents are limited by both an internally fixed and externally adjustable Soft-Start circuit. Fault detection and supply sequencing is possible with the integrated power good circuit.
The LM20145 is designed to work well in multi-rail power supply architectures. The output voltage of the device can be configured to track a higher voltage rail using the SS/TRK pin.
If the output of the LM20145 is pre-biased at startup it will not sink current to pull the output low until the internal soft-start ramp exceeds the voltage at the feedback pin.
The frequency of this device can be adjusted from 250 kHz to 750 kHz by connecting an external resistor from the RT pin to ground.
The LM20145 is offered in a 16-pin eTSSOP package with an exposed pad that can be soldered to the PCB, eliminating the need for bulky heatsinks.

Features
* Input voltage range 2.95V to 5.5V
* Accurate current limit minimizes inductor size
* 97% peak efficiency
* Adjustable switching frequency (250 kHz to 750 kHz)
* 32 mΩ integrated FET switches
* Starts up into pre-biased loads
* Output voltage tracking
* Peak current mode control
* Adjustable output voltage down to 0.8V
* Adjustable Soft-Start with external capacitor
* Precision enable pin with hysteresis
* Integrated OVP, UVLO, power good and thermal shutdown
* eTSSOP-16 exposed pad package

Applications
* Simple to design, high efficiency point of load regulation from a 5V or 3.3V bus
* High Performance DSPs, FPGAs, ASICs and microprocessors
* Broadband, Networking and Optical Communications Infrastructure

LM20145MH
LM20145MHE
LM20145MHX

General Description
The DS90CR213 transmitter converts 21 bits of CMOS/TTL data into three LVDS (Low Voltage Differential Signaling) data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over a fourth LVDS link. Every cycle of the transmit clock 21 bits of input data are sampled and transmitted. The DS90CR214 receiver converts the LVDS data streams back into 21 bits of CMOS/TTL data. At a transmit clock frequency of 66 MHz, 21 bits of TTL data are
transmitted at a rate of 462 Mbps per LVDS data channel.
Using a 66 MHz clock, the data throughput is 1.386 Gbit/ (173 Mbytes/s).
The multiplexing of the data lines provides a substantial cable reduction. Long distance parallel single-ended buses typically require a ground wire per active signal (and have very limited noise rejection capability). Thus, for a 21-bit wide data and one clock, up to 44 conductors are required. With the Channel Link chipset as few as 9 conductors (3 data pairs, 1 clock pair and a minimum of one ground) are needed. This provides an 80% reduction in required cable width, which provides a system cost savings, reduces connector physical size and cost, and reduces shielding requirements due to the cable’s smaller form factor.
The 21 CMOS/TTL inputs can support a variety of signal combinations. For example, 5 4-bit nibbles (byte + parity) 2 9-bit (byte + 3 parity) and 1 control.

Features
* 66 MHz Clock Support
* Up to 173 Mbytes/s bandwidth
* Low power CMOS design (<610 mW)
* Power-down mode (<0.5 mW total)
* Up to 1.386 Gbit/s data throughput
* Narrow bus reduces cable size and cost
* 290 mV swing LVDS devices for low EMI
* PLL requires no external components
* Low profile 48-lead TSSOP package
* Rising edge data strobe
* Compatible with TIA/EIA-644 LVDS Standard

DS90CR214

General Description
The LM2688 is a low-cost non-synchronous voltage-mode PWM controller which maintains an accurate and adjustable output voltage for high current, low voltage DC/DC applications such as the Pentium microprocessor family. By using different combinations of feedback resistors, the regulator output voltage can be precisely adjusted to match different requirements. Coming in an 8-lead surface mount package, the LM2688 can be used to control a buck regulator with an load current up to 10A. An on-chip precision trimmed reference allows tight voltage regulation and an internal 150 kHz fixed-frequency oscillator eliminates extra components to set the switching frequency. The LM2688 also provides an ON/ OFF pin which enables the CPU to shutdown the regulator when necessary. Self protection features include a two stage current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. The controller also provides internal loop gain compensation, minimizing the number of external components.

Features
* Adjustable output voltage
* Available in 8-pin surface mount
* Guaranteed 0.5A gate drive current
* Supply voltage up to 40V
* 150 kHz fixed frequency internal oscillator
* TTL shutdown capability
* Low power standby mode, IQ typically <85 μA
* Thermal shutdown and current limit protection

Applications
* Controller for voltage regulators for Pentium, Pentium MMX, K5, K6 MMX, Alpha and PowerPC processors
* Efficient pre-regulator for linear regulators

LXV16VB102M
LXV16VB102M
LXV16VB102M

General Description
The LM5642 consists of two current mode synchronous buck regulator controllers operating 180° out of phase with each other at a normal switching frequency of 200kHz.
Out of phase operation reduces the input ripple RMS current, thereby significantly reducing the required input capacitance.
The switching frequency can be synchronized to an external clock between 150kHz and 250kHz. The two switching regulator outputs can also be paralleled to operate as a dual-phase single output regulator.
The output of each channel can be independently adjusted from 1.3 to 90% of Vin. An internal 5V rail is also available externally for driving bootstrap circuitry.
Current-mode feedback control assures excellent line and load regulation and a wide loop bandwidth for excellent response to fast load transients. Current is sensed across either the Vds of the top FET or across an external currentsense resistor connected in series with the drain of the top FET.
The LM5642 features analog soft-start circuitry that is independent of the output load and output capacitance making the soft-start behavior more predictable and controllable than traditional soft-start circuits.
Over-voltage protection is available for both outputs. A UVDelay pin is also available to allow delayed shut off time for the IC during an output under-voltage event.

Features
* Two synchronous buck regulators
* 180° out of phase operation
* Synchronizable switching frequency from 150kHz to 250kHz
* 4.5V to 36V input range
* 50μA Shutdown current
* Adjustable output from 1.3V to 90% of Vin
* 0.04% (typical) line and load regulation error
* Current mode control with or without a sense resistor
* Independent enable/soft-start pins allow simple sequential startup configuration.
* Configurable for single output parallel operation. (See Figure 2)
* Adjustable cycle-by-cycle current limit
* Input under-voltage lockout
* Output over-voltage latch protection
* Output under-voltage protection with delay
* Thermal shutdown
* Self discharge of output capacitors when the regulator is OFF
* TSSOP package

Applications
* Embedded Computer Systems
* Telecom Systems
* Set-Top Boxes
* WebPAD
* Point Of Load Power Architectures

LM5642MTC