ADS1257IRGWT Data & Signal Conversion by Texas Instruments

ADC 4-CH DELTA-SIGMA 24BIT VQFN-20

Semiconductors - ICs>Data & Signal Conversion>Analog-to-Digital Converters - ADC
Status: Unknown
Series: Quad 24-Bit Sigma-Delta ADCs
RoHS: Unknown
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The ADS1257 is a low-noise, 30-kSPS, 24-bit, deltasigma (ΔΣ) analog-to-digital converter (ADC) with an integrated multiplexer (mux), input buffer, and programmable gain amplifier (PGA) in a small 20-pin, 5-mm × 5-mm VQFN package. The combination of integration, high conversion rate, and 24-bit resolution together in a small package makes the device ideally suited for space-constrained applications. The input multiplexer accepts either two differential or three single-ended input measurements. The sensorbreak detection circuit verifies the input connection continuity to the ADC. The selectable input buffer greatly increases the input impedance, and in many cases, eliminates the need for external buffers. The buffer input voltage range includes AGND. The lownoise PGA provides gains from 1 to 64 to accommodate a wide range of inputs signals. The programmable digital filter optimizes ADC resolution (up to 23 bits noise-free) and conversion rates (up to 30 kSPS). The digital filter provides single-cycle settled conversions, and rejection of 50-Hz and 60-Hz interference signals. The SPI-compatible serial interface operates with as little as three wires, simplifying connections to external controllers. Integrated calibration features support both self and system correction of offset and gain errors for all PGA gain settings. Two bidirectional digital I/Os pins control external circuits.

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Specifications

Resolution (Bits) 24bit
Sampling Rate 30kSPS
Input Channel Type Differential Single Ended
Data Interface SPI
Supply Voltage Type Single
Supply Voltage Min 4.75V
Supply Voltage Max 5.25V
ADC / DAC Case Style VQFN
No. of Pins 20Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range Quad 24-Bit Sigma-Delta ADCs
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)

Alternative Descriptions

24-Bit, 30kSPS, 4-Ch Industrial ADC With Integrated PGA | Texas Instruments

Frequently Asked Questions

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The ADS1257IRGWT is listed under Semiconductors - ICs > Data & Signal Conversion > Analog-to-Digital Converters - ADC.

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Is the ADS1257IRGWT RoHS compliant?

This part has not been flagged as RoHS Compliant.

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