Packaging information
| Package | Pins VQFN (RSH) | 56 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 2,500 | LARGE T&R |
Features for the ADS9212
- 2-channel, 18-bit ADC with analog
front-end:
- Dual, simultaneous sampling
- Constant 1MΩ input impedance front-end
- Programmable analog input ranges:
- ±12V, ±10V, ±7V, ±5V, ±3.5V, and ±2.5V
- Single-ended and differential inputs
- ±12V common-mode voltage range
- Input overvoltage protection: Up to ±18V
- User-selectable analog input
bandwidth:
- 21kHz and 400kHz
- Integrated low-drift precision
references
- ADC reference: 4.096V
- 2.5V reference output for external circuits
- Excellent AC and DC performance
at full-throughput:
- DNL: ±0.5LSB, INL: ±0.8LSB
- SNR: 92dB, THD: –113dB
- Power supply:
- Analog and digital: 5V and 1.8V
- Digital interface: 1.2V to 1.8V
- Temperature range: –40°C to +125°C
Description for the ADS9212
The ADS9212 is a 2-channel data acquisition (DAQ) system based on a dual, simultaneous-sampling, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC). The ADS9212 features a complete analog front-end for each channel with an input clamp, 1MΩ input impedance, independently programmable gain amplifier (PGA), programmable low-pass filter, and an ADC input driver. The device also features a low-drift, precision reference with a buffer to drive the ADCs. A high-speed digital interface supporting 1.2V to 1.8V operation enables the ADS9212 to be used with high-speed interfaces.
The ADS9212 can be configured to accept ±12V, ±10V, ±7V, ±5V, ±3.5V, and ±2.5V bipolar inputs. The high input impedance allows direct connection with sensors and transformers, thus eliminating the need for external driver circuits. The high performance and accuracy, along with zero-latency conversions offered by this device make the ADS9212 designed for multiple industrial applications.