AD7952 14-Bit, 1 MSPS, Differential, Programmable Input PulSAR® ADC
The AD7952 is a 14-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 AD7952 contains a high speed 14-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 AD7952 features four different analog input ranges and three different sampling modes: warp mode for the fastest throughput, normal mode for the fastest asynchronous throughput, and impulse mode where power is scaled with throughput. Operation is specified from −40°C to +85°C.
Applications
- Process controls Medical instruments
- High speed data acquisition
- Digital signal processing
- Instrumentation
- Spectrum analysis
- ATE
Features and Benefits- 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
- Throughput
1 MSPS (warp mode)
800 kSPS (normal mode)
670 kSPS (impulse mode) - 14-bit resolution with no missing codes
- INL: ±0.3 LSB typical, ±1 LSB maximum (±61 ppm of FSR)
- SNR: 85 dB @ 2 kHz
- iCMOS® process technology
- 5 V internal reference: typical drift 3 ppm/°C; TEMP output
- No pipeline delay (SAR architecture)
- Parallel (14- or 8-bit bus) and serial 5 V/3.3 V interface
- SPI-/QSPI™-/MICROWIRE™-/DSP-compatible
- Power dissipation
235 mW @ 1 MSPS
10 mW @ 1 kSPS
| |
Data Sheets
Application Notes
User Guides
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| AD7952BCPZ Last Time Buy | 48 ld LFCSP 7x7mm (5.1EP) | OTH 260 | -40 to 85C | 12.16 | 10.99 | Y |
| AD7952BCPZRL Last Time Buy | 48 ld LFCSP 7x7mm (5.1EP) | REEL 2500 | -40 to 85C | 0 | 10.99 | Y |
| AD7952BSTZ Production | 48 ld LQFP | OTH 250 | -40 to 85C | 12.31 | 11.12 | Y |
| AD7952BSTZRL Production | 48 ld LQFP | REEL 2000 | -40 to 85C | 0 | 11.12 | Y |
Reference Materials
