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ADS122U04IPWR

24 Bit Analog to Digital Converter 2, 4 Input 1 Sigma-Delta 16-TSSOP

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

ADS122U04IPWR
Datasheet:

ADS122U04IPWR Datasheet (PDF)
Number of Bits:

24
Sampling Rate (Per Second):

2k
Number of Inputs:

2, 4
Input Type:

Differential, Single Ended
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ADS122U04IPWR General Description

The ADS122U04 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 ADS122U04 ideally suited for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors.

The ADS122U04 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 ADS122U04 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.

Key Features

Current Consumption as Low as 315 µA (typ)
Wide Supply Range: 2.3 V to 5.5 V
Programmable Gain: 1 to 128
Programmable Data Rates: Up to 2 kSPS
Up to 20 Bits Effective Resolution
Simultaneous 50-Hz and 60-Hz Rejection at 20 SPS With Single-Cycle Settling Digital Filter
Two Differential or Four Single-Ended Inputs
Dual-Matched Programmable Current Sources:
10 µA to 1.5 mA
Internal 2.048-V Reference: 5 ppm/°C (typ) Drift
Internal 2% Accurate Oscillator
Internal Temperature Sensor:
0.5°C (typ) Accuracy
Three General-Purpose Inputs/Outputs
2-Wire UART Compatible Interface (8-N-1 Format) With Baud Rates up to 120 kBaud and
Auto-Baud-Rate Detection
Package: 3.0-mm × 3.0-mm × 0.75-mm WQFN

Specifications

Category	Integrated Circuits (ICs)Data AcquisitionAnalog to Digital Converters (ADC)	Series	-
Number of Bits	24	Sampling Rate (Per Second)	2k
Number of Inputs	2, 4	Input Type	Differential, Single Ended
Data Interface	UART	Configuration	MUX-PGA-ADC
Ratio - S/H:ADC	-	Number of A/D Converters	1
Architecture	Sigma-Delta	Reference Type	Internal
Voltage - Supply, Analog	±2.5V, 2.3V ~ 5.5V	Voltage - Supply, Digital	2.3V ~ 5.5V
Features	PGA, Simultaneous Sampling, Temperature Sensor	Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount	Base Product Number	ADS122U04
Resolution (Bits)	24	Sample rate (max) (ksps)	2
Number of input channels	4	Interface type	UART
Input type	Differential, Single-ended	Multichannel configuration	Multiplexed
Rating	Catalog	Reference mode	External, Internal
Input voltage range (max) (V)	2.85, 5.6	Input voltage range (min) (V)	-2.85, 0
Operating temperature range (°C)	-40 to 125	Power consumption (typ) (mW)	1.4
Analog supply (min) (V)	2.3	Analog supply voltage (max) (V)	5.5
Digital supply (min) (V)	2.3	Digital supply (max) (V)	5.5
Pin Count	16	Released Date	Nov 17, 2021
Last Modified Date	Mar 7, 2023 4:10 PM UTC

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Ratings and Reviews

C**b 02/13/2024

I made the product but the life of the LEDs are very short burning immediately and the product is good working. I paid 12 pounds of customs duty. Does not tell friends to get advice

M**d 01/24/2024

Quality is good. Delivery is fast. The seller is happy.

E**a 06/09/2022

Everything is fine, stitched the chip, matplav earned))

J**b 05/27/2022

Troublefree transaction - recommended seller