ADS1112IDGSR

Product Summary

The ADS1112IDGSR is a precision, continuously self-calibrating Analog-to-Digital (A/D) converter with two differential or three single-ended channels and up to 16 bits of resolution in the small MSOP-10 and leadless QFN-style (small-outline, no-lead) packages. The onboard 2.048V reference provides an input range of ±2.048V differentially. The ADS1112IDGSR uses an I2C-compatible serial interface and has two address pins that allow a user to select one of the eight I2C Slave addresses. The ADS1112IDGSR operates from a single power supply ranging from 2.7V to 5.5V. The ADS1112IDGSR can perform conversions at rates of 15, 30, 60, or 240 samples per second (SPS). The onboard programmable gain amplifier (PGA), which offers gains of up to eight, allows smaller signals to be measured with high resolution. In single-conversion mode, the ADS1112IDGSR automatically powers down after a conversion, greatly reducing current consumption during idle periods.

Parametrics

ADS1112IDGSR absolute maximum ratings: (1)VDD to GND: -0.3V to +6V; (2)Input Current: 100mA, Momentary; (3)Input Current: 10mA, Continuous; (4)Analog Inputs, A0, A1, Voltage to GND: -0.3V to VDD + 0.3V; (5)SDA, SCL Voltage to GND: -0.5V to 6V; (6)Maximum Junction Temperature: +150℃; (7)Operating Temperature Range: -40℃ to +125℃; (8)Storage Temperature Range: -60℃ to +150℃; (9)Lead Temperature (soldering, 10s): +300℃.

Features

ADS1112IDGSR features: (1)Complete data acquisition system in the msop-10 and leadless qfn-style packages; (2)Measurements from two differential channels or three single-ended channels; (3)I2C.Interface—eight addresses pinselectable; (4)Onboard reference: Accuracy: 2.048V ±0.05%; Drift: 5ppm/℃; (5)Onboard PGA; (6)Onboard oscillator; (7)16 Bits, no missing codes; (8)INL: 0.01% of FSR max; (9)Continuous self-calibration; (10)Single-cycle conversion; (11)Programmable data rate: 15SPS to 240SPS; (12)Power supply: 2.7V to 5.5V; (13)Low current consumption: 240μA.

Diagrams