TYPE | DESCRIPTION |
---|
Mounting Style | Surface Mount |
Number of Pins | 16 Pin |
Supply Voltage (DC) | 2.70 V (min) |
Case/Package | TSSOP |
Supply Current | 500 µA |
Number of Bits | 20 Bit |
Power Dissipation | 2.50 mW |
Sample Rate | 470 Hz |
Resolution (Bits) | 20.0 Bit |
TYPE | DESCRIPTION |
---|
Product Lifecycle Status | Active |
The AD7785BRUZ is a 3-channel low noise, low power 20-bit sigma-delta Analog-to-digital Converter (ADC) with on-chip in-amp and reference. It is a complete analog front end for high precision measurement applications. The on-chip low noise instrumentation amplifier means that signals of small amplitude can be interfaced directly to the ADC. With a gain setting of 64 the rms noise is 40nV when the update rate equals 4.17Hz. The device contains a precision low noise, low drift internal band gap reference and can accept an external differential reference. Other on-chip features include programmable excitation current sources, burnout currents and a bias voltage generator. The bias voltage generator sets the common-mode voltage of a channel to AVDD/2. It can be operated with either the internal clock or an external clock.
● Low noise programmable gain instrumentation amp
● Band gap reference with 4ppm/°C drift typical
● Internal clock oscillator
● Programmable current sources
● On-chip bias voltage generator
● Burnout currents
● Independent interface power supply
● 3-wire serial SPI®/QSPI™/MICROWIRE™/DSP compatible Schmitt trigger on SCLK
ADI
ANALOG DEVICES AD7785BRUZ Analog to Digital Converter, 20Bit, 470 SPS, Single, 2.7V, 5.25V, TSSOP
ADI
IC ADC 20Bit 3CH LN LP 16-TSSOP
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