ADS1285IRHBT

Texas Instruments

Texas Instruments ADS1285IRHBT, 32-bit sigma-delta ADC, differential input, MUX-PGA-ADC, 4 kSPS, 3-wire SPI, 32-VFQFN exposed pad, -40 to 85°C.

Texas Instruments ADS1285IRHBT
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MOQ 1 · Tape & Reel (TR); Cut Tape (CT) · RoHS · EIA-481 · DAP/DDP · T/T

Technical specifications

ADS1285IRHBT specifications
Parameter / AttributeSpecification / Value
Input typeDifferential
MountingSurface Mount
Reference typeExternal
Voltage - supply, analog3V ~ 5.25V
Voltage - supply, digital2.7V ~ 3.6V
I/O channels2
Data interface3-Wire Serial, SPI
Operating temperature-40°C ~ 85°C
PackageTape & Reel (TR); Cut Tape (CT)
ArchitectureSigma-Delta
ConfigurationMUX-PGA-ADC
Number of bits32
Case32-VFQFN Exposed Pad
Ratio - s (H:ADC)1:1
Number of a (D converters)1
Sampling rate (Per second)4k

Technical details

32-bit sigma-delta ADC for precision measurement chains

It samples at 4 kSPS and communicates over a 3-wire SPI interface. The 32-bit resolution targets high-accuracy instrumentation, weigh scales, seismic monitoring, and industrial process control where noise floor and linearity dominate the signal chain budget.

32 bits at 4 kSPS — the resolution-speed trade-off

The 32-bit resolution samples at 4 kSPS. The sigma-delta modulator oversamples and decimates to push quantization noise out of the passband.

ADS1285IRHBT
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