12-Bit ADC, MUX, PGA And Internal Reference Data Acquisition System

The ADS7870 (US patents 6140872, 6060874) is a complete low-power data acquisition system on a single chip. It consists of a 4-channel differential/8-channel single-ended multiplexer, precision Programmable Gain Amplifier 12-bit successive approximation Analog-to-digital (A/D) converter, and a precision Voltage Reference The programmable-gain Amplifier provides high input impedance, excellent gain accuracy, good common-mode rejection, and low noise. For many low-level signals, no external amplification or impedance buffering is needed between the signal source and the A/D input. The offset voltage of the PGA is auto zeroed. Gains of 1, 2, 4, 5, 8, 10, 16, and 20 V/V allow signals as low as 125 mV to produce full-scale digital outputs. The ADS7870 contains an internal reference, which is trimmed for high initial accuracy and stability vs temperature. Drift is typically 10 ppm/C. An external reference CAN be used in situations where multiple ADS7870s share a common reference. The serial Interface allows the use of SPI?, QSPI?, Microwire?, and 8051-family protocols, without glue Logic
By Texas Instruments
ADS7870 's PackagesADS7870 's pdf datasheet

ADS7870 pdf datasheet download

ADS7870 Pinout, Pinouts
ADS7870 pinout,Pin out
This is one package pinout of ADS7870,If you need more pinouts please download ADS7870's pdf datasheet.

ADS7870 Application circuits
ADS7870 circuits
This is one application circuit of ADS7870,If you need more circuits,please download ADS7870's pdf datasheet.

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