AD7631
PRODUCTION18-Bit, 250 kSPS, Differential Programmable Input PulSAR® ADC
- Part Models
- 2
- 1ku List Price
- Starting From $36.12
Part Details
- Multiple pins/software-programmable input ranges
+5 V (10 V p-p), +10 V (20 V p-p), ±5 V (20 V p-p), ±10 V (40 V p-p) - Pins or serial SPI-compatible input ranges/mode selection
- Power dissipation
73 mW @ 250 kSPS
10 mW @ 1 kSPS - See datasheet for additional features
The AD7631 is an 18-bit, charge redistribution, successive approximation register (SAR), architecture analog-to-digital converter (ADC) fabricated on Analog Devices, Inc.’s iCMOS high voltage process. The device is configured through hardware or via a dedicated write-only serial configuration port for input range and operating mode. The AD7631 contains a high speed 18-bit sampling ADC, an internal conversion clock, an internal reference (and buffer), error correction circuits, and both serial and parallel system interface ports. A falling edge on CNVST samples the fully differential analog inputs on IN+ and IN−. The AD7631 features four different analog input ranges. Power is scaled linearly with throughput. Operation is specified from −40°C to +85°C.
APPLICATIONS
- Process controls
- High speed data acquisition
- Digital signal processing
- Spectrum analysis
- ATE
Documentation
Data Sheet 1
Application Note 1
Technical Articles 1
Analog Dialogue 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7631BSTZ | 48-Lead LQFP (7mm x 7mm) | ||
| AD7631BSTZRL | 48-Lead LQFP (7mm x 7mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jan 5, 2009 - 07_0077 Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages |
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| AD7631BSTZ | PRODUCTION | |
| AD7631BSTZRL | PRODUCTION | |
|
Oct 13, 2008 - 06_0084 Qualification of the 8" H Wafer Fab process at Analog Devices, Limerick, Ireland. |
||
| AD7631BSTZ | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Low Input Bias Current Op Amps (≤100 pA) 2 | ||
| ADA4627-1 | PRODUCTION | 36 V, 19 MHz, Low Noise, Low Bias Current, JFET Op Amp |
| AD8610 | PRODUCTION | Precision, Low Input Bias Current, Wide BW JFET Single Op Amp |
| Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C) 4 | ||
| ADA4841-1 | PRODUCTION | Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier |
| AD8021 | PRODUCTION | Low Noise, High Speed Amplifier for 16-Bit Systems |
| ADA4898-1 | PRODUCTION | High Voltage, Low Noise, Low Distortion, Unity Gain Stable, High Speed Op Amp |
| AD8597 | PRODUCTION | Ultralow Distortion, Ultralow Noise Op Amp (single) |
| Series Voltage References 2 | ||
| ADR445 | PRODUCTION | Ultralow Noise, LDO XFET® 5.0V Voltage Reference w/Current Sink and Source |
| ADR435 | PRODUCTION | Ultralow Noise XFET® Voltage References with Current Sink and Source Capability |
| Single-Ended to Differential Amplifiers 1 | ||
| ADA4922-1 | PRODUCTION | High Voltage, Differential 18-Bit ADC Driver |
Evaluation Kits
AD7631 Evaluation Kit