Interface - Sensor and Detector Interfaces

The AD598 is a complete, monolithic Linear Variable Differential Transformer (LVDT) signal conditioning subsystem. It is used in conjunction with LVDTs to convert transducer mechanical position to a unipolar or bipolar dc voltage with a high degree of accuracy and repeatability. All circuit functions are included on the chip. With the addition of a few external passive components to set frequency and gain, the AD598 converts the raw LVDT secondary output to a scaled dc signal. The device can also be used with RVDT transducers. The AD598 contains a low distortion sine wave oscillator to drive the LVDT primary. The LVDT secondary output consists of two sine waves that drive the AD598 directly. The AD598 operates upon the two signals, dividing their difference by their sum, producing a scaled unipolar or bipolar dc output. The AD598 uses a unique ratiometric architecture (patent pending) to eliminate several of the disadvantages associated with traditional approaches to LVDT interfacing. The benefits of this new circuit are: no adjustments are necessary, transformer null voltage and primary to secondary phase shift does not affect system accuracy, temperature stability is improved, and transducer interchangeability is improved.

Time-to-Digital Converter for Time-of-Flight Applications The TDC7200 is a Time-to-Digital Converter (TDC) for ultrasonic sensing measurements such as water flow meter, gas flow meter, and heat flow meter. When paired with the TDC1000 (ultrasonic Analogue-Front-End), the TDC7200 can be a part of a

2014-11-11

Thermocouple Amplifiers, Maxim Integrated Thermocouple-to-Digital Converter Integrated Cold-Junction Compensation Thermocouple Types: K-, J-, N-, T-, S-, R-, and E-Type 0.25°C Resolution Detects Thermocouple Shorts to GND or VCC Detects Open Thermocouple Interfaces with simple SPI-Compatible

4-20mA CURRENT LOOP TRANSMITTERS

Proximity Detectors

Other Analog Circuits

PRECISION VOLTAGE-TO-CURRENT CONVERTER/TRANSMITTER

A/D Converter A-D IC; Resolution Bits:16; Sample Rate:100SPS; Input Channels Per ADC:1; Input Channel Type:Differential; Data Interface:Serial; Package/Case:8-SOIC; Leaded Process Compatible:No; No. of Bits:18 RoHS Compliant: Yes

IC THERMOCOUP TO DGTL 8-SOIC

4.20 mA Transmitter

4-20mA CURRENT LOOP TRANSMITTERS

Complete 14-Bit 30 MSPS CCD Signal Processor

Ultra-Low Power, 2-Channel, Capacitance Converter for Proximity Sensing

PROXIMITY DETECTORS