ADS122U04IRTER
Active24-BIT, 2-KSPS, 4-CH, LOW-POWER, SMALL-SIZE DELTA-SIGMA ADC W/ PGA, VREF, 2X IDACS & UART INTERFACE
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ADS122U04IRTER
Active24-BIT, 2-KSPS, 4-CH, LOW-POWER, SMALL-SIZE DELTA-SIGMA ADC W/ PGA, VREF, 2X IDACS & UART INTERFACE
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Technical Specifications
Parameters and characteristics for this part
| Specification | ADS122U04IRTER |
|---|---|
| Architecture | Sigma-Delta |
| Configuration | MUX-PGA-ADC |
| Data Interface | UART |
| Features | Simultaneous Sampling, Temperature Sensor, PGA |
| Input Type | Single Ended, Differential |
| Mounting Type | Surface Mount |
| Number of A/D Converters | 1 |
| Number of Bits | 24 |
| Number of Inputs | 4 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-WFQFN Exposed Pad |
| Ratio - S/H:ADC | 0:1 |
| Reference Type | Internal |
| Sampling Rate (Per Second) | 2k |
| Supplier Device Package | 16-WQFN (3x3) |
| 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 |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 7.88 | |
| Digi-Reel® | 1 | $ 7.88 | ||
| Tape & Reel (TR) | 3000 | $ 4.31 | ||
| Texas Instruments | LARGE T&R | 1 | $ 6.04 | |
| 100 | $ 4.92 | |||
| 250 | $ 3.87 | |||
| 1000 | $ 3.28 | |||
Description
General part information
ADS122U04 Series
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.
Documents
Technical documentation and resources
