0
Resolution (Bits) |
12 |
Sample rate (max) (ksps) |
500 |
Number of input channels |
4 |
Interface type |
SPI |
Architecture |
SAR |
Input type |
Differential |
Multichannel configuration |
Simultaneous Sampling |
Rating |
Catalog |
Reference mode |
External, Internal |
Input voltage range (max) (V) |
5.25 |
Input voltage range (min) (V) |
0 |
Operating temperature range (°C) |
-40 to 125 |
Power consumption (typ) (mW) |
25 |
Analog supply voltage (min) (V) |
4.75 |
Analog supply voltage (max) (V) |
5.25 |
Digital supply (min) (V) |
4.75 |
Digital supply (max) (V) |
5.25 |
SSOP (DBQ)-24-51.9 mm² 8.65 x 6
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The ADS7861 is a dual, 12-bit, 500kHz, Analog-to-Digital (A/D) converter with four fully differential input channels grouped into two pairs for high speed, simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz which is important in high noise environments.
The ADS7861 offers a high-speed, dual serial interface and control inputs to minimize software overhead. The output data for each channel is available as a 12-bit word. The ADS7861 is offered in both an SSOP-24 and a QFN-32 package and is fully specified over the -40°C to +125°C operating range.