8-Bit Signal Conditioning ADC.

The AD670 is a complete 8-bit Signal Conditioning Analog-to-digital converter. It consists of an Instrumentation Amplifier front end along with a DAC Comparator successive approximation Register (SAR), precision Voltage Reference and a three-state output Buffer on a single monolithic chip. No external components or user trims are required to Interface with full accuracy, an Analog system to an 8-bit data bus. The AD670 will operate on the +5 V system supply. The input stage provides differential inputs with excellent common-mode rejection and allows direct Interface to a variety of transducers.
The device is configured with input scaling resistors to permit two input ranges: 0 mV to 255 mV (1 mV/LSB) and 0 to 2.55 V (10 mV/LSB). The AD670 CAN be configured for both unipolar and bipolar inputs over these ranges. The differential inputs and common-mode rejection of this front end are useful in applications such as conversion of transducer signals superimposed on common-mode voltages.
The AD670 incorporates advanced circuit design and proven processing technology. The successive approximation function is implemented with I2L (integrated injection logic). Thin-film SiCr resistors provide the stability required to prevent missing codes over the entire operating temperature range while laser wafer trimming of the resistor ladder permits calibration of the device to within 1 LSB. Thus, no user trims for gain or offset are required. Conversion time of the device is 10 s.
The AD670 is available in four package types and five grades. The J and K grades are specified over 0C to +70C and come in 20-pin plastic DIP packages or 20-terminal PLCC packages. The A and B grades (-40C to +85C) and the S grade (-55C to +125C) come in 20-pin ceramic DIP packages.
The S grade is also available with optional processing to MIL-STD-883 in 20-pin ceramic DIP or 20-terminal LCC packages. The Analog Devices Military Products Databook should be consulted for detailed specifications.
By Analog Devices, Inc.
AD670 's PackagesAD670 's pdf datasheet
5962-8763501RA
AD670AD
AD670JN PDIP
AD670JNZ PDIP
AD670JP PLCC
AD670JP-REEL PLCC
AD670JPZ PLCC
AD670JPZ-REEL7 PLCC
AD670KN PDIP
AD670KN-
AD670KNZ PDIP
AD670KP PLCC
AD670KPZ PLCC
AD670SD-883B
AD670SE-883B LCC




AD670 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
AD670 Application circuits
AD670 circuits
This is one application circuit of AD670,If you need more circuits,please download AD670's pdf datasheet.


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