0
ACTIVE
Resolution (Bits) |
12 |
Sample rate (max) (ksps) |
1250 |
Number of input channels |
1 |
Interface type |
Enhanced SPI, SPI |
Architecture |
SAR |
Input type |
Differential, Single-ended |
Rating |
Catalog |
Reference mode |
External, Internal |
Input voltage range (max) (V) |
12.288 |
Input voltage range (min) (V) |
-12.288 |
Features |
Oscillator, Over-Voltage Protection, PGA |
Operating temperature range (°C) |
-40 to 125 |
Power consumption (typ) (mW) |
36 |
Analog supply voltage (min) (V) |
4.75 |
Analog supply voltage (max) (V) |
5.25 |
SNR (dB) |
73.5 |
Digital supply (min) (V) |
1.65 |
Digital supply (max) (V) |
5.25 |
WQFN (RUM)-16-16 mm² 4 x 4
The ADS8661Wis an integrated data acquisition system based on a successive approximation (SAR) analog-to-digital converter (ADC) topology. The device features a high-speed, high-precision SAR ADC, integrated differential analog front-end (AFE) input driver circuit. The ADS8661W includes an overvoltage protection circuit up to ±20V and an on-chip 4.096V reference with extremely low temperature drift.
The device operates on a single 5V analog supply, but support true bipolar input ranges and unipolar input ranges. The bipolar input ranges are ±12.288V, ±6.144V, ±10.24V, ±5.12V, and ±2.56V, and the unipolar input ranges are from 0V to 12.288V, 10.24V, 6.144V, and 5.12V. The devices offer a high resistive input impedance (≥ 1MΩ) irrespective of the selected input range.
The multiSPI digital interface is backward-compatible to the traditional SPI protocol. Additionally, configurable features simplify interface to a wide range of host controllers.
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