ADS1220IRVAR
Active24-BIT, 2-KSPS, FOUR-CHANNEL, LOW-POWER, DELTA-SIGMA ADC WITH PGA, VREF, SPI AND TWO IDACS
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ADS1220IRVAR
Active24-BIT, 2-KSPS, FOUR-CHANNEL, LOW-POWER, DELTA-SIGMA ADC WITH PGA, VREF, SPI AND TWO IDACS
Technical Specifications
Parameters and characteristics for this part
| Specification | ADS1220IRVAR |
|---|---|
| Architecture | Sigma-Delta |
| Configuration | MUX-PGA-ADC |
| Data Interface | SPI |
| Features | 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, 2 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-VFQFN Exposed Pad |
| Reference Type | Internal, External, Supply |
| Sampling Rate (Per Second) | 2k |
| Supplier Device Package | 16-VQFN (3.5x3.5) |
| 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 | $ 8.52 | |
| 10 | $ 7.69 | |||
| 25 | $ 7.33 | |||
| 100 | $ 6.37 | |||
| 250 | $ 6.08 | |||
| 500 | $ 5.55 | |||
| 1000 | $ 4.83 | |||
| Digi-Reel® | 1 | $ 8.52 | ||
| 10 | $ 7.69 | |||
| 25 | $ 7.33 | |||
| 100 | $ 6.37 | |||
| 250 | $ 6.08 | |||
| 500 | $ 5.55 | |||
| 1000 | $ 4.83 | |||
| Tape & Reel (TR) | 3000 | $ 4.65 | ||
| LCSC | Piece | 1 | $ 2.30 | |
| 10 | $ 1.94 | |||
| 30 | $ 1.72 | |||
| 100 | $ 1.49 | |||
| 500 | $ 1.39 | |||
| 1000 | $ 1.35 | |||
| Texas Instruments | LARGE T&R | 1 | $ 6.04 | |
| 100 | $ 4.92 | |||
| 250 | $ 3.87 | |||
| 1000 | $ 3.28 | |||
Description
General part information
ADS1220 Series
The ADS1220 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, a low-side switch, 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 V/V. This PGA makes the ADS1220 ideally-suited for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors. The device supports measurements of pseudo- or fully-differential signals when using the PGA. Alternatively, the device can be configured to bypass the internal PGA while still providing high input impedance and gains up to 4 V/V, allowing for single-ended measurements.
Power consumption is as low as 120 µA when operating in duty-cycle mode with the PGA disabled. The ADS1220 is offered in a leadless VQFN-16 or a TSSOP-16 package and is specified over a temperature range of –40°C to +125°C.
Documents
Technical documentation and resources
