ADS112U04 Series

16-bit, 2-kSPS, 4-ch, low-power, small-size delta-sigma ADC w/ PGA, VREF, 2x IDACs & UART interface

Catalog

16-bit, 2-kSPS, 4-ch, low-power, small-size delta-sigma ADC w/ PGA, VREF, 2x IDACs & UART interface

Part	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Number of A/D Converters	Number of Bits	Architecture	Supplier Device Package	Mounting Type	Input Type	Features	Package / Case [x]	Package / Case	Package / Case [y]	Reference Type	Data Interface	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog	Number of Inputs	Configuration	Sampling Rate (Per Second)
Texas Instruments ADS112U04IPWR	125 °C	-40 °C	5.5 V	2.3 V	1	16	Sigma-Delta	16-TSSOP	Surface Mount	Differential Pseudo-Differential Single Ended	PGA Temperature Sensor	0.173 in	16-TSSOP	4.4 mm	External Internal	UART	2.3 V	5.5 V	2.5 V	4	MUX-PGA-ADC	2k
Texas Instruments ADS112U04IRTER	125 °C	-40 °C	5.5 V	2.3 V	1	16	Sigma-Delta	16-WQFN (3x3)	Surface Mount	Differential Single Ended	PGA Temperature Sensor		16-WFQFN Exposed Pad		External Internal	UART	2.3 V	5.5 V		4	MUX-PGA-ADC	2k

Catalog

16-bit, 2-kSPS, 4-ch, low-power, small-size delta-sigma ADC w/ PGA, VREF, 2x IDACs & UART interface

Key Features

• Current Consumption as Low as 315 µA (typ)Wide Supply Range: 2.3 V to 5.5 VProgrammable Gain: 1 to 128Programmable Data Rates: Up to 2 kSPS16-Bit, Noise-Free Resolution at 20 SPSSimultaneous 50-Hz and 60-Hz Rejection at 20 SPS With Single-Cycle Settling Digital FilterTwo Differential or Four Single-Ended InputsDual-Matched Programmable Current Sources:10 µA to 1.5 mAInternal 2.048-V Reference: 5 ppm/°C (typ) DriftInternal 2% Accurate OscillatorInternal Temperature Sensor:0.5°C (typ) AccuracyThree General-Purpose Inputs/Outputs2-Wire UART Compatible Interface (8-N-1 Format) With Baud Rates up to 120 kBaud andAuto-Baud-Rate DetectionPackage: 3.0-mm × 3.0-mm × 0.75-mm WQFNCurrent Consumption as Low as 315 µA (typ)Wide Supply Range: 2.3 V to 5.5 VProgrammable Gain: 1 to 128Programmable Data Rates: Up to 2 kSPS16-Bit, Noise-Free Resolution at 20 SPSSimultaneous 50-Hz and 60-Hz Rejection at 20 SPS With Single-Cycle Settling Digital FilterTwo Differential or Four Single-Ended InputsDual-Matched Programmable Current Sources:10 µA to 1.5 mAInternal 2.048-V Reference: 5 ppm/°C (typ) DriftInternal 2% Accurate OscillatorInternal Temperature Sensor:0.5°C (typ) AccuracyThree General-Purpose Inputs/Outputs2-Wire UART Compatible Interface (8-N-1 Format) With Baud Rates up to 120 kBaud andAuto-Baud-Rate DetectionPackage: 3.0-mm × 3.0-mm × 0.75-mm WQFN

Description

The ADS112U04 is a precision, 16-bit, analog-to-digital converter (ADC) that offers many integrated features to reduce system cost and component count in applications measuring small sensor signals. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, and a precision temperature sensor. The device can perform conversions at data rates up to 2000 samples-per-second (SPS) with single-cycle settling. At 20 SPS, the digital filter offers simultaneous 50-Hz and 60-Hz rejection for noisy industrial applications. The internal PGA offers gains up to 128. This PGA makes the ADS112U04 ideally suited for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors. The ADS112U04 features a 2-wire, UART-compatible interface. In applications that require galvanic isolation this universal asynchronous receiver/transmitter (UART) interface minimizes the number of digital isolation channels, thus saving cost, board space, and power. The ADS112U04 is offered in a leadless 16-pin WQFN or a 16-pin TSSOP package and is specified over a temperature range of –40°C to +125°C. The ADS112U04 is a precision, 16-bit, analog-to-digital converter (ADC) that offers many integrated features to reduce system cost and component count in applications measuring small sensor signals. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, and a precision temperature sensor. The device can perform conversions at data rates up to 2000 samples-per-second (SPS) with single-cycle settling. At 20 SPS, the digital filter offers simultaneous 50-Hz and 60-Hz rejection for noisy industrial applications. The internal PGA offers gains up to 128. This PGA makes the ADS112U04 ideally suited for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors. The ADS112U04 features a 2-wire, UART-compatible interface. In applications that require galvanic isolation this universal asynchronous receiver/transmitter (UART) interface minimizes the number of digital isolation channels, thus saving cost, board space, and power. The ADS112U04 is offered in a leadless 16-pin WQFN or a 16-pin TSSOP package and is specified over a temperature range of –40°C to +125°C.