DESCRIPTION
The PA84 is a high voltage operational amplifier designed for output voltage swings up to ±145V with a dual supply or 290V with a single supply. Two versions are available. The new PA84S, fast settling amplifier can absorb differential input overvoltages up to ±50V while the established PA84 and PA84A can handle differential input overvoltages of up to ±300V. Both versions are protected against common mode transients and overvoltages up to the supply rails. High accuracy is achieved with a cascode input circuit configuration. All internal biasing is referenced to a zener diode fed by a FET constant current source. As a result, the PA84 features an unprecedented supply range and excellent supply rejection. The output stage is biased-on for linear operation. External phase compensation allows for user flexibility in obtaining the maximum slew rate. Fixed current limits protect these amplifiers against shorts to common at supply voltages up to 150V. For operation into inductive loads, two external flyback pulse protection diodes are recommended. However, a heatsink may be necessary to maintain the proper case temperature under normal operating conditions.
This hybrid integrated circuit utilizes a beryllia (BeO) substrate, thick film resistors, ceramic capacitors and semiconductor chips to maximize reliability, minimize size and give top performance. Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The 8-pin TO-3 package is hermetically sealed and electrically isolated. The use of compressible thermal isolation washers and/or improper mounting torque will void the product warranty. Please see “General Operating Considerations”.

FEATURES
*HIGH SLEW RATE — 200V/μs
*FAST SETTLING TIME — .1% in 1μs (PA84S)
*FULLY PROTECTED INPUT — Up to ±150v
*LOW BIAS CURRENT, LOW NOISE — FET Input
*WIDE SUPPLY RANGE — ±15V to ±150V

APPLICATIONS
*HIGH VOLTAGE INSTRUMENTATION
*ELECTROSTATIC TRANSDUCERS & DEFLECTION
*PROGRAMMABLE POWER SUPPLIES UP TO 290V
*ANALOG SIMULATORS

PA84A, PA84S

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DESCRIPTION
The SA303 is a fully integrated switching amplifier designed primarily to drive three-phase Brushless DC (BLDC) motors. Three independent half bridges provide over 10 amperes peak output current under microcontroller or DSC control. Thermal and short circuit monitoring is provided, which generates fault signals for the microcontroller to take appropriate action.
A block diagram is provided in Figure 1.
Additionally, cycle-by-cycle current limit offers user programmable hardware protection independent of the microcontroller. Output current is measured using an innovative low loss technique. The SA303 is built using a multi-technology process allowing CMOS logic control and complementary DMOS output power devices on the same IC. Use of P-channel high side FETs enables 60V operation without bootstrap or charge pump circuitry.
The Power Quad surface mount package balances excellent thermal performance with the advantages of a low profile surface mount package.

FEATURES
*Low Cost 3 Phase Intelligent Switching Amplifier
*Directly Connects to Most Embedded Microcontrollers and Digital Signal Controllers
*Integrated Gate Driver Logic with Dead-Time Generation and Shoot-through Prevention
*Wide Power Supply Range (8.5V To 60V)
*Over 10A Peak Output Current per Phase
*3A Continuous Output Current per Phase
*Independent Current Sensing for each Output
*User Programmable Cycle-by-cycle Current Limit Protection
*Over-Current and Over-Temperature Warning Signals

APPLICATIONS
*3 phase brushless DC motors
*Multiple DC brush motors
*3 independent solenoid actuators

SA303-IHZ

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DESCRIPTION
The PA 16 and PA 16A are wideband, high output current operational amplifiers designed to drive resistive, inductive and capacitive loads. Their complementary “collector output” stage can swing close to the supply rails and is protected against inductive kickback. For optimum linearity, the output stage is biased for class A/B operation. The safe operating area (SOA) can be observed for all operating conditions by selection of user programmable, current limiting resistors (down to 10mA). Both amplifiers are internally compensated but are not recommended for use as unity gain followers. For continuous operation under load, mounting on a heatsink of proper rating is recommended.
These hybrid integrated circuits utilize thick film (cermet) resistors, ceramic capacitors and semiconductor chips to maximize reliability, minimize size and give top performance. Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The Power SIP package is electrically isolated.

FEATURES
*High power bandwidth — 350kHz
*High slew rate — 20V/μs
*Fast settling time — 600ns
*Low crossover distortion — Class A /B
*Low internal losses — 1.2V at 2A
*High output current — ±5A P eak
*Low input bias current — FET Input
*Isolated case — 300 VDC

APPLICATIONS
*Motor, valve and actuator control
*Magnetic deflection circuits up to 5A
*Power transducers up to 350 kHz
*Audio amplifiers up to 44W RMS

PA16A

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DESCRIPTION
The PA12 is a state of the art high voltage, very high output current operational amplifier designed to drive resistive, inductive and capacitive loads. For optimum linearity, especially at low levels, the output stage is biased for class A/B operation using a thermistor compensated base-emitter voltage multiplier circuit. The safe operating area (SOA) can be observed for all operating conditions by selection of user programmable current limiting resistors. For continuous operation under load, a heatsink of proper rating is recommended. The PA12 is not recommended for gains below –3 (inverting) or +4 (non-inverting).
This hybrid integrated circuit utilizes thick film (cermet) resistors, ceramic capacitors and semiconductor chips to maximize reliability, minimize size and give top performance. Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The 8-pin TO-3 package is hermetically sealed and electrically isolated. The use of compressible isolation washers voids the warranty.

FEATURES
*LOW THERMAL RESISTANCE — 1.4°C/W
*CURRENT FOLDOVER PROTECTION — NEW
*HIGH TEMPERATURE VERSION — PA12H
*EXCELLENT LINEARITY — Class A/B Output
*WIDE SUPPLY RANGE — ±10V to ±50V
*HIGH OUTPUT CURRENT — Up to ±15A Peak

APPLICATIONS
*MOTOR, VALVE AND ACTUATOR CONTROL
*MAGNETIC DEFLECTION CIRCUITS UP TO 10A
*POWER TRANSDUCERS UP TO 100kHz
*TEMPERATURE CONTROL UP TO 360W
*PROGRAMMABLE POWER SUPPLIES UP TO 90V
*AUDIO AMPLIFIERS UP TO 120W RMS

PA12A

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DESCRIPTION
The PA51 and PA51A are high voltage, high output current operational amplifiers designed to drive resistive, inductive and capacitive loads. Their complementary common emitter output stage is the simple class C type optimized for low frequency applications where crossover distortion is not critical.
These amplifiers are not recommended for audio, transducer or deflection coil drive circuits. The safe operating area (SOA) is fully specified and can be observed for all operating conditions by selection of user programmable current limiting resistors. Both amplifiers are internally compensated for all gain settings. For continuous operation under load, mounting on a heatsink of proper rating is recommended. Do not use isolation washers!
This hybrid integrated circuit utilizes thick film conductors, ceramic capacitors and semiconductor chips to maximize reliability, minimize size and give top performance. Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The 8-pin TO-3 package is electrically isolated and hermetically sealed. The use of compressible thermal washers and/or improper mounting torque will void the product warranty. Please see “General Operating Considerations”.
The linear relationship of torque output to current input of the modern torque motor makes this simple control circuit ideal for many material processing and testing applications. The sense resistor develops a feedback voltage proportional to motor current and the small signal properties of the Power Op Amp insure accuracy. With this closed loop operation, temperature induced impedance variations of the motor winding are automatically compensated.

FEATURES
*WIDE SUPPLY RANGE — ±10 to ±40V
*HIGH OUTPUT CURRENT — ±10A Peak
*CLASS “C” OUTPUT — Low Cost
*LOW QUIESCENT CURRENT — 2.6mA

APPLICATIONS
*DC SERVO AMPLIFIER
*MOTOR/SYNCHRO DRIVER
*VALVE AND ACTUATOR CONTROL
*DC OR AC POWER REGULATOR

PA51A

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General Description
The MP230 operational amplifier is a surface mount constructed component that provides a cost effective solution in many industrial applications. The MP230 offers outstanding performance that rivals many much more expensive hybrid components yet has a footprint of only 4.7 sq in. The MP230 has many optional features such as four-wire current limit sensing, a shutdown
control and external compensation. In addition, the class A/B output stage biasing can be turned off for lower quiescent current with class C operation in applications where crossover distortion is less important such as when driving motors, for example. A boost voltage feature biases the output stage for close linear swings to the supply rail for extra efficient operation.
The MP230 is built on a thermally conductive but electrically insulating substrate that can be mounted to a heat sink.

Features
*LOW COST
*HIGH VOLTAGE - 100 VOLTS
*HIGH OUTPUT CURRENT - 30 AMPS
*210 WATT DISSIPATION CAPABILITY

APPLICATIONS
*MOTOR DRIVE
*MAGNETIC DEFLECTION
*PROGRAMMABLE POWER SUPPLIES
*INDUSTRIAL AUDIO AMPLIFIER

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General Description
The CS5581 is a single-channel, 16-bit analog-to-digital converter capable of 200 kSps conversion rate. The input accepts a single-ended analog input signal. On-chip buffers provide high input impedance for both the AIN input and the VREF+ input. This significantly reduces the drive requirements of signal sources and reduces errors due to source impedances. The CS5581 is a delta-sigma converter capable of switching multiple input channels at a high rate with no loss in throughput. The ADC uses a low-latency digital filter architecture. The filter is designed for fast settling and settles to full accuracy in one conversion. The converter's 16-bit data output is in serial format, with the serial port acting as either a master or a slave. The converter is designed to support bipolar, ground-referenced signals when operated from ±2.5V analog supplies.
The CS5581 uses self-calibration to achieve low offset and gain errors. The converter achieves a S/N of 81 dB. Linearity is 0.0007% of full scale.
The converter can operate from an analog supply of 0-5V or from ±2.5V. The digital interface supports standard logic operating from 1.8, 2.5, or 3.3 V.

Features & Description
*Single-ended Analog Input
*On-chip Buffers for High Input Impedance
*Conversion Time = 5 μS
*Settles in One Conversion
*Linearity Error = 0.0007%
*Signal-to-Noise = 81 dB
*S/(N + D) = 81 dB
*DNL = ±0.1 LSB Max.
*Self-calibration:
- Maintains accuracy over time & temperature.
*Simple three/four-wire serial interface
*Power Supply Configurations:
- Analog: +5V/GND; IO: +1.8V to +3.3V
- Analog: ±2.5V; IO: +1.8V to +3.3V
*Power Consumption:
- ADC Input Buffers On: 85 mW
- ADC Input Buffers Off: 60 mW

CS5581-ISZ

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GENERAL DESCRIPTION
The CS42L51 is a highly integrated, 24-bit, 96 kHz, low power stereo CODEC. Based on multi-bit, delta-sigma modulation, it allows infinite sample rate adjustment between 4 kHz and 96 kHz. Both the ADC and DAC offer many features suitable for low power, portable system applications.
The ADC input path allows independent channel control of a number of features. An input multiplexer selects between line-level or microphone level inputs for each channel. The microphone input path includes a selectable programmable-gain pre-amplifier stage and a low noise MIC bias voltage supply. A PGA is available for line or microphone inputs and provides analog gain with soft ramp and zero cross transitions. The ADC also features a digital volume attenuator with soft ramp transitions. A programmable ALC and Noise Gate monitor the input signals and adjust the volume levels appropriately.
The DAC output path includes a digital signal processing engine. Tone Control provides bass and treble adjustment of four selectable corner frequencies. The Mixer allows independent volume control for both the ADC mix and the PCM mix, as well as a master digital volume control for the analog output. All volume level changes may be configured to occur on soft ramp and zero cross transitions. The DAC also includes de-emphasis, limiting functions and a beep generator delivering tones selectable across a range of two full octaves.
The stereo headphone amplifier is powered from a separate positive supply and the integrated charge pump provides a negative supply. This allows a ground-centered analog output with a wide signal swing and eliminates external DC-blocking capacitors.
In addition to its many features, the CS42L51 operates from a low-voltage analog and digital core, making this CODEC ideal for portable systems that require extremely low power consumption in a minimal amount of space.
The CS42L51 is available in a 32-pin QFN package in both Commercial (-10 to +70° C) and Automotive grades (-40 to +85° C). The CDB42L51 Customer Demonstration board is also available for device evaluation and implementation suggestions. Please see “Ordering Information” on page 85 for complete details.

FEATURES
*24-bit Converters
*4 kHz to 96 kHz Sample Rate
*Multi-bit Delta Sigma Architecture
*Low Power Operation
– Stereo Playback: 12.93 mW @ 1.8 V
– Stereo Record and Playback: 20.18 mW @ 1.8 V
*Variable Power Supplies
– 1.8 V to 2.5 V Digital & Analog
– 1.8 V to 3.3 V Interface Logic
*Power Down Management
– ADC, DAC, CODEC, MIC Pre-Amplifier, PGA
*Software Mode (I²C® & SPI™ Control)
*Hardware Mode (Stand-Alone Control)
*Digital Routing/Mixes:
– Analog Out = ADC + Digital In
– Digital Out = ADC + Digital In
– Internal Digital Loopback
– Mono Mixes
*Flexible Clocking Options
– Master or Slave Operation
– High-Impedance Digital Output Option (for easy MUXing between CODEC and Other Data Sources)
– Quarter-Speed Mode - (i.e. Allows 8 kHz Fs while maintaining a flat noise floor up to 16 kHz)

APPLICATIONS
*HDD & Flash-Based Portable Audio Players
*MD Players/Recorders
*PDAs
*Personal Media Players
*Portable Game Consoles
*Digital Voice Recorders
*Digital Camcorders
*Digital Cameras
*Smart Phones

CS42L51-CNZ, CS42L51-CNZR, CS42L51-DNZ, CS42L51-DNZR

TAG Amp, CODEC

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Description
The CS5466 is a low cost power meter solution combining two ΔΣ Analog-to-Digital Converters (ADC)’s, an energy-to-frequency converter, and energy pulse outputs on a single chip. It is designed to accurately measure and calculate energy for single phase 2- or 3- wire power metering applications with minimal external components.
Low frequency energy outputs, E1 and E2, supply average real power and can be used to drive a stepper motor or a mechanical counter; the high frequency energy output FOUT can be used for calibration; and NEG indicates negative power.
The CS5466 has configuration pins which allow for direct configuration of pulse output frequency, current channel input range, and high pass filter enable option. The CS5466 also has a power-on reset function which holds the part in reset until the supply reaches an operable level.

Features
*Single Chip; Power Measurement Solution
*Energy Data Linearity: ±0.1% of Reading over 1000:1 Dynamic Range
*On-Chip functions: Measures Energy and Performs Energy-to-Pulse Conversions
*Meets Accuracy Spec for IEC 687/1036
*High Pass Filter Option
*Four Input Ranges for Current Channel
*On-Chip 2.5 V Reference (25 ppm/°C typ)
*Pulse Outputs for Stepper Motor or Mechanical Counter
*On-Chip Energy Direction Indicator
*Ground Referenced Input Signals with Single Supply
*High Frequency Output for Calibration
*On-Chip Power-on Reset
*Power Supply Configurations: VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to 5 V

CS5466-ISZ

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General Description
The CS5361 is a complete analog-to-digital converter for digital audio systems.
It performs sampling, analog-todigital conversion and anti-alias filtering, generating 24-bit values for both left and right inputs in serial form at sample rates up to 192 kHz per channel.
The CS5361 uses a 5th-order, multi-bit delta-sigma modulator followed by digital filtering and decimation, which removes the need for an external anti-alias filter.
The ADC uses a differential architecture which provides excellent noise rejection.
The CS5361 is ideal for audio systems requiring wide dynamic range, negligible distortion and low noise, such as A/V receivers, DVD-R, CD-R, digital mixing consoles, and effects processors.

Features
*Advanced Multi-bit Delta-Sigma Architecture
*24-Bit Conversion
*114 dB Dynamic Range
*-105 dB THD+N
*System Sampling Rates up to 192 kHz
*Less than 150 mW Power Consumption
* High Pass Filter or DC Offset Calibration
*Supports Logic Levels Between 5 and 2.5V
*Differential Analog Architecture
* Linear Phase Digital Anti-Alias Filtering
*Overflow DetectionFeatures

CS5361-KS
CS5361-BS
CS5361-KZ
TAG A/D, Converter

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