0
ACTIVE
Resolution (Bits) |
12 |
Sample rate (max) (ksps) |
200 |
Number of input channels |
4 |
Interface type |
SPI |
Architecture |
SAR |
Input type |
Single-ended |
Multichannel configuration |
Multiplexed |
Rating |
Catalog |
Reference mode |
External |
Input voltage range (max) (V) |
5.25 |
Input voltage range (min) (V) |
0 |
Operating temperature range (°C) |
-40 to 85 |
Power consumption (typ) (mW) |
1.8 |
Analog supply voltage (min) (V) |
2.7 |
Analog supply voltage (max) (V) |
5.25 |
SNR (dB) |
72 |
Digital supply (min) (V) |
2.7 |
Digital supply (max) (V) |
5.25 |
SSOP (DBQ)-16-29.4 mm² 4.9 x 6
NOTE: (1) ES grade only.
The ADS7841 is a 4-channel, 12-bit sampling Analog-to-Digital Converter (ADC) with a synchronous serial interface. The resolution is programmable to either 8 bits or 12 bits. Typical power dissipation is 2mW at a 200kHz through-put rate and a +5V supply. The reference voltage (VREF) can be varied between 100mV and VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces power dissipation to under 15uW. The ADS7841 is tested down to 2.7V operation.
Low power, high speed, and on-board multiplexer make the ADS7841 ideal for battery-operated systems such as personal digital assistants, portable multi-channel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS7841 is available in a DIP-16 or a SSOP-16 package and is specified over the x9640°C to +125°C (1) temperature range.
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