ADS122C04IPWR

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Texas Instruments

24-BIT, 2-KSPS, 4-CH, LOW-POWER, SMALL-SIZE DELTA-SIGMA ADC WITH PGA, VREF, 2X IDACS & I2C INTERFACE

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ADS122C04IPWR

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Texas Instruments

24-BIT, 2-KSPS, 4-CH, LOW-POWER, SMALL-SIZE DELTA-SIGMA ADC WITH PGA, VREF, 2X IDACS & I2C INTERFACE

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Description

General part information

ADS122C04 Series

The ADS122C04 is a precision, 24-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 ADS122C04 ideally suited for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors.

The ADS122C04 features a 2-wire, I2C-compatible interface that supports I2C bus speeds up to 1 Mbps. Two address pins allow selection of 16 different I2C addresses for the device.

Technical Specifications

Parameters and characteristics for this part

Specification	ADS122C04IPWR

Architecture	Sigma-Delta
Configuration	MUX-PGA-ADC
Data Interface	I2C
Features	Temperature Sensor, PGA
Input Type	Single Ended, Differential
Mounting Type	Surface Mount
Number of A/D Converters	1 count
Number of Bits	24 bits
Number of Inputs	4
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package Length	0.173 in
Package Name	16-TSSOP
Package Width	4.4 mm
Ratio - ADC	1
Ratio - S/H	0
Reference Type	Internal
Sampling Rate (Per Second)	2000 Hz
Voltage - Supply, Analog (Max)	5.5 V
Voltage - Supply, Analog (Min)	2.3 V
Voltage - Supply, Digital (Max)	5.5 V
Voltage - Supply, Digital (Min)	2.3 V

ADS122C04 Series

24-bit, 2-kSPS, 4-ch, low-power, small-size delta-sigma ADC with PGA, VREF, 2x IDACs & I2C interface

Part	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Supply, Digital (Max)	Voltage - Supply, Digital (Min)	Number of Bits	Features	Input Type	Package Length	Package Name	Package Width	Configuration	Mounting Type	Number of A/D Converters	Data Interface	Number of Inputs	Architecture	Ratio - ADC	Package / Case	Voltage - Supply, Analog (Min)	Voltage - Supply, Analog (Max)	Reference Type	Sampling Rate (Per Second)
Texas Instruments ADS122C04IRTER	125 °C	-40 °C	5.5 V	2.3 V	24 bits	PGA Temperature Sensor	Differential Single Ended	3 mm	16-WQFN	3 mm	MUX-PGA-ADC	Surface Mount	1 count	I2C	4	Sigma-Delta	1	16-WFQFN Exposed Pad	2.3 V	5.5 V	Internal	2000 Hz
Texas Instruments ADS122C04IPWR	125 °C	-40 °C	5.5 V	2.3 V	24 bits	PGA Temperature Sensor	Differential Single Ended	0.173 in	16-TSSOP	4.4 mm	MUX-PGA-ADC	Surface Mount	1 count	I2C	4	Sigma-Delta	1		2.3 V	5.5 V	Internal	2000 Hz
Texas Instruments ADS122C04IRTET	125 °C	-40 °C	5.5 V	2.3 V	24 bits	PGA Temperature Sensor	Differential Single Ended	3 mm	16-WQFN	3 mm	MUX-PGA-ADC	Surface Mount	1 count	I2C	4	Sigma-Delta	1	16-WFQFN Exposed Pad	2.3 V	5.5 V	Internal	2000 Hz
Texas Instruments ADS122C04IPW	125 °C	-40 °C	5.5 V	2.3 V	24 bits	PGA Temperature Sensor	Differential Single Ended	0.173 in	16-TSSOP	4.4 mm	MUX-PGA-ADC	Surface Mount	1 count	I2C	4	Sigma-Delta	1		2.3 V	5.5 V	Internal	2000 Hz