| Resolution (Bits) | 12 |
| Number of input channels | 1 |
| Sample rate (Max) (kSPS) | 200 |
| Interface type | SPI |
| Architecture | SAR |
| Input type | Pseudo-Differential, Single-Ended |
| Rating | Catalog |
| Reference mode | Ext |
| Input range (Max) (V) | 5.25 |
| Input range (Min) (V) | 0 |
| Operating temperature range (C) | -40 to 85 |
| Power consumption (Typ) (mW) | 2.3 |
| Analog voltage AVDD (Min) (V) | 4.75 |
| SNR (dB) | 71 |
| Analog voltage AVDD (Max) (V) | 5.25 |
| INL (Max) (+/-LSB) | 2 |
| Digital supply (Min) (V) | 4.75 |
| Digital supply (Max) (V) | 5.25 |
- BIPOLAR INPUT RANGE
- TRUE DIFFERENTIAL INPUT
- 200kHz SAMPLING RATE
- MICRO POWER: 2.3mW at 200kHz
- POWER DOWN: 3uA Max
- AVAILABLE IN MSOP-8 PACKAGE
- SERIAL INTERFACE
- AC COMMON-MODE REJECTION
- APPLICATIONS
- TRANSDUCER INTERFACE
- BATTERY OPERATED SYSTEMS
- REMOTE DATA ACQUISITION
- ISOLATED DATA ACQUISITION
- AC MOTOR CONTROL
The ADS7817 is a 12-bit, 200kHz sampling Analog-to-Digital (A/D) converter that features a high impedance fully differential analog input. The reference voltage can be varied from 100mV to 2.5V, with a corresponding input-referred resolution between 49uV and 1.22mV.
The differential input, low power, automatic power down, and small size make the ADS7817 ideal for direct connection to transducers in battery operated systems, remote data acquisition, or multi-channel applications. The ADS7817 is available in a plastic mini-DIP-8, an SO-8, or an MSOP-8 package.