ADS1285IRHBT
Active32-BIT HIGH-RESOLUTION TWO-CHANNEL DELTA-SIGMA ADC FOR SEISMIC AND GEOSPACE EXPLORATION
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ADS1285IRHBT
Active32-BIT HIGH-RESOLUTION TWO-CHANNEL DELTA-SIGMA ADC FOR SEISMIC AND GEOSPACE EXPLORATION
Technical Specifications
Parameters and characteristics for this part
| Specification | ADS1285IRHBT |
|---|---|
| Architecture | Sigma-Delta |
| Configuration | MUX-PGA-ADC |
| Data Interface | SPI, 3-Wire Serial |
| Input Type | Differential |
| Mounting Type | Surface Mount |
| Number of A/D Converters | 1 |
| Number of Bits | 32 |
| Number of Inputs | 2 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 32-VFQFN Exposed Pad |
| Ratio - S/H:ADC | 1:1 |
| Reference Type | External |
| Sampling Rate (Per Second) | 4k |
| Supplier Device Package | 32-VQFN (5x5) |
| Voltage - Supply, Analog [Max] | 5.25 V |
| Voltage - Supply, Analog [Min] | 3 V |
| Voltage - Supply, Digital [Max] | 3.6 V |
| Voltage - Supply, Digital [Min] | 2.7 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 | $ 74.34 | |
| 10 | $ 70.62 | |||
| 25 | $ 68.76 | |||
| 100 | $ 63.65 | |||
| Digi-Reel® | 1 | $ 74.34 | ||
| 10 | $ 70.62 | |||
| 25 | $ 68.76 | |||
| 100 | $ 63.65 | |||
| Tape & Reel (TR) | 250 | $ 61.79 | ||
| Texas Instruments | SMALL T&R | 1 | $ 70.38 | |
| 100 | $ 62.56 | |||
| 250 | $ 51.43 | |||
| 1000 | $ 46.00 | |||
Description
General part information
ADS1285 Series
The ADS1285 is a 32-bit, low-power, analog-to-digital converter (ADC), with a programmable gain amplifier (PGA) and a finite impulse response (FIR) filter. The ADC is designed for the demanding needs of seismology equipment requiring low-noise precision digitization and extended battery run time.
The low-noise PGA allows direct connection of geophones and transformer-coupled hydrophones without the need of an external amplifier.
The ADC incorporates a high-resolution, delta-sigma (ΔΣ) modulator and a FIR filter with programmable phase response. The high-pass filter removes dc and low-frequency content from the signal. Clock frequency error is compensated by the sample rate converter with 7-ppb resolution.
Documents
Technical documentation and resources
