GENERAL DESCRIPTION
The CAV414 is an universal multipurpose interface for capacitive sensors and contains the complete signal processing unit on chip. The CAV414 detects the relative capacitive change of a measuring capacity to a fixed reference capacity. The IC is optimised for capacities in the wide range of 10pF to 2nF with possible changes of capacity of 5% to 100% of the reference capacity.
The voltage output is formed by a high accuracy instrumentation amplifier in combination with an operational amplifier.
With only a few external components, the CAV414 is suitable for a great variety of applications including a zero compensation.

FEATURES
*Wide Supply Voltage Range: 6...35V
*Wide Operating Temperature Range: –40°C...+85°C
*High Detection Sensitivity of Relative Capacitive Changes: 5% – 100%
*Detection Frequency up to 2kHz
*Adjustable Voltage Range: 0...5/10V, other
*Reference Voltage Source: 5V
*Protection against Reverse Polarity
*Output Current Limitation
*Adjustable with only two Resistors

APPLICATIONS
*Industrial Process Control
*Distance Measurement
*Pressure Measurement
*Humidity Measurement
*Level Control

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*15V DIGITALOR ± 7.5V PEAK TO PEAK SWITCHING
*125W TYPICAL ON RESISTANCE FOR 15V OPERATION
*SWITCH ON RESISTANCE MATCHED TO WITHIN 5W TYP. OVER 15V SIGNAL INPUT RANGE
*ON RESISTANCE FLAT OVER FULL PEAK TO PEAK SIGNAL RANGE
*HIGH ON/OFF OUTPUT VOLTAGE RATIO : 65dB TYP. at fIS = 10KHz, RL = 10KW
*HIGH DEGREE OF LINEARITY : < 0.5% DISTORTION TYP. at fIS = 1KHz, VIS = 5 Vpp, VDD - VSS > 10V, RL = 10KW
*EXTREMELY LOW OFF SWITCH LEAKAGE RESULTING IN VERY LOW OFFSET CURRENT AND HIGH EFFECTIVE OFF RESISTANCE : 10pA TYP. at VDD - VSS = 10V, Tamb = 25°C
*EXTREMELY HIGH CONTROL INPUT IMPEDANCE (control circuit isolated from signal circuit 1012W typ.)
*LOW CROSSTALK BETWEEN SWITCHES : 50dB Typ. at fIS = 0.9MHz, RL = 1KW
*MATCHED CONTROL - INPUT TO SIGNAL OUTPUT CAPACITANCE : REDUCES OUTPUT  SIGNAL TRANSIENTS
*FREQUENCY RESPONSE SWITCH ON : 40MHz (Typ.)
*QUIESCENT CURRENT SPECIF. UP TO 20V
*5V, 10V AND 15V PARAMETRIC RATINGS
*INPUT LEAKAGE CURRENT II = 100nA (MAX) AT VDD = 18V TA = 25°C
*100% TESTEDFOR QUIESCENT CURRENT
*MEETS ALL REQUIREMENTS OF JEDEC JESD13B ” STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES”

DESCRIPTION
The HCF4066B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages. The HCF4066B is a QUAD BILATERAL SWITCH
intended for the transmission or multiplexing of analog or digital signals.
It is pin for pin compatible with HCF4016B, but exhibits a much lower ON resistance. In addition,
the ON resistance is relatively constant over the full input signal range. The HCF4066B consists of four independent bilateral switches. A single control signal is required per switch. Both the p
and n device in a given switch are biased ON or OFF simultaneously by the control signal. As
shown in schematic diagram , the well of the n-channel device on each switch is either tied to
the input when the switch is ON or to VSS when the switch is OFF. This configuration  eliminates the variation of the switch-transistor threshold voltage with input signal, and thus keeps the ON resistance low over the full operating signal range. The advantages over single channel switches include peak input signal voltage swings equal to the full supply voltage, and more constant ON impedance over the input signal range. For sample and hold applications, however, the HCF4016B is recommended.

HCF4066BEY HCF4066BM1 HCF4066M013TR

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HARDWARE FEATURES
• Single Chip USB <-> Asynchronous Serial Data Transfer
• Full Handshaking & Modem Interface Signals
• UART I/F Supports 7 / 8 Bit Data, 1 / 2 Stop Bits and Odd/Even/Mark/Space/No Parity
• Data rate 300 => 3M Baud ( TLL )
• Data rate 300 => 1M Baud ( RS232 )
• Data rate 300 => 3M Baud ( RS422/RS485 )
• 384 Byte Receive Buffer / 128 Byte Transmit Buffer for high data throughput
• Adjustable RX buffer timeout
• Full hardware assisted hardware or X-On / X-Off handshaking
• In-built support for event characters and line break condition
• Auto Transmit Buffer control for RS485
• Support for USB Suspend / Resume through SLEEP# and RI# pins
• Support for high power USB Bus powered devices through PWREN# pin
• Integrated level converter on UART and control signals for interfacing to 5v and 3.3v logic
• Integrated 3.3v regulator for USB IO
• Integrated Power-On-Reset circuit
• Integrated 6MHz – 48Mhz clock multiplier PLL
• USB Bulk or Isocronous data transfer modes
• 4.4v to 5.25v single supply operation
• UHCI / OHCI / EHCI host controller compatible
• USB 1.1 and USB 2.0 compatible
• USB VID, PID , Serial Number and Product Description strings in external EEPROM
• EEPROM programmable on-board via USB

VIRTUAL COM PORT ( VCP ) DRIVERS for
- Windows 98 and Windows 98 SE
- Windows 2000 / ME / XP
- Windows CE **
- MAC OS-8 and OS-9
- MAC OS-X **
- Linux 2.40 and greater

D2XX ( USB Direct Drivers + DLL S/W Interface
- Windows 98 and Windows 98 SE
- Windows 2000 / ME / XP

APPLICATION AREAS
- USB <-> RS232 Converters
- USB <-> RS422 / RS485 Converters
- Upgrading RS232 Legacy Peripherals to USB
- Cellular and Cordless Phone USB data transfer cables and interfaces
- Interfacing MCU based designs to USB
- USB Audio and Low Bandwidth Video data transfer
- PDA ó USB data transfer
- USB Smart Card Readers
- Set Top Box ( S.T.B. ) PC - USB interface
- USB Hardware Modems
- USB Wireless Modems
- USB Instrumentation
- USB Bar Code Readers

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