ADS1225IRGVT
Active24-BIT 100-SPS ADC WITH DIFFERENTIAL INPUT AND INTERNAL OSCILLATOR
ADS1225IRGVT
Active24-BIT 100-SPS ADC WITH DIFFERENTIAL INPUT AND INTERNAL OSCILLATOR
Description
General part information
ADS1225 Series
The ADS1225 and ADS1226 are 24-bit delta-sigma analog-to-digital (A/D) converters. They offer excellent performance, ease-of-use, and low power in a small 4mm × 4mm QFN package and are well-suited for demanding high-resolution measurements, especially in portable and other space-saving and power-constrained applications.
The ADS1225 and ADS1226 convert on command using a dedicated START pin. Simply pulse this pin to initiate a conversion. Data is read in a single cycle for retrieval over a 2-wire serial interface that easily connects to popular microcontrollers like the MSP430. After the conversion completes, the ADS1225 and ADS1226 automatically shuts down all circuitry.
Internal features include a two-channel multiplexer (ADS1226), selectable input buffer, temperature sensor, and oscillator. The full-scale range is defined by the external voltage reference with support provided for up to a 5V differential input signal. Two operating modes allow for speed (100SPS data rate, 15µVRMSnoise) or resolution (4µVRMSnoise, 16SPS data rate).
Technical Specifications
Parameters and characteristics for this part
| Specification | ADS1225IRGVT |
|---|---|
| Architecture | Sigma-Delta |
| Configuration | MUX-ADC |
| Data Interface | SPI |
| Features | Temperature Sensor |
| Input Type | Single Ended, Differential |
| Mounting Type | Surface Mount |
| Number of A/D Converters | 1 count |
| Number of Bits | 24 bits |
| Number of Inputs | 1 |
| Operating Temperature (Max) | 105 °C |
| Operating Temperature (Min) | -40 °C |
| Package / Case | 16-VQFN Exposed Pad |
| Package Length | 4 mm |
| Package Name | 16-VQFN |
| Package Width | 4 mm |
| Reference Type | External |
| Sampling Rate (Per Second) | 100 Hz |
| Voltage - Supply, Analog (Max) | 5.5 V |
| Voltage - Supply, Analog (Min) | 2.7 V |
| Voltage - Supply, Digital (Max) | 5.5 V |
| Voltage - Supply, Digital (Min) | 2.7 V |
Pricing
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CAD
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