Overview
The AD7952BCPZ is a 14-bit, successive approximation register (SAR) architecture analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is fabricated using the iCMOS high voltage process, which ensures high performance and reliability. The AD7952 features a charge redistribution SAR architecture, providing high-speed conversion with minimal pipeline delay. It is configured through either hardware or a dedicated write-only serial configuration port, allowing for flexible input range and operating mode settings.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14-bit | |
| Sampling Rate | 1 MSPS (warp mode), 800 kSPS (normal mode), 670 kSPS (impulse mode) | |
| Integral Nonlinearity (INL) | ±0.3 LSB (typical), ±1 LSB (maximum) | |
| Signal-to-Noise Ratio (SNR) | 85 dB @ 2 kHz | |
| Input Type | Differential | |
| Data Interface | Parallel (14- or 8-bit bus), Serial (SPI-/QSPI-/MICROWIRE-/DSP-compatible) | |
| Supply Voltage | 5 V (analog and digital) | V |
| Power Dissipation | 235 mW @ 1 MSPS, 10 mW @ 1 kSPS | mW |
| Package | 48-lead LQFP and 48-lead LFCSP (7 mm × 7 mm) | |
| Operating Temperature | -40°C to +85°C | °C |
Key Features
- High-speed conversion with no pipeline delay due to SAR architecture.
- Internal 5 V reference with low drift (±3 ppm/°C).
- Four different analog input ranges and three sampling modes (warp, normal, impulse).
- Parallel and serial interface options, including SPI, QSPI, MICROWIRE, and DSP compatibility.
- Low power consumption, scalable with throughput.
- TEMP output for temperature monitoring.
- Error correction circuits for improved accuracy.
Applications
- Process controls.
- Medical instruments.
- High-speed data acquisition.
- Digital signal processing.
- Instrumentation.
- Spectrum analysis.
- Automated Test Equipment (ATE).
Q & A
- What is the resolution of the AD7952BCPZ ADC?
The AD7952BCPZ has a 14-bit resolution.
- What are the different sampling modes available for the AD7952BCPZ?
The AD7952BCPZ offers three sampling modes: warp mode for the fastest throughput, normal mode for the fastest asynchronous throughput, and impulse mode where power is scaled with throughput.
- What is the signal-to-noise ratio (SNR) of the AD7952BCPZ at 2 kHz input frequency?
The SNR at 2 kHz is 85 dB.
- What types of interfaces does the AD7952BCPZ support?
The AD7952BCPZ supports both parallel (14- or 8-bit bus) and serial (SPI, QSPI, MICROWIRE, DSP) interfaces.
- What is the operating temperature range of the AD7952BCPZ?
The operating temperature range is -40°C to +85°C.
- How is the AD7952BCPZ configured?
The AD7952BCPZ can be configured through either hardware or a dedicated write-only serial configuration port.
- What is the power dissipation of the AD7952BCPZ at different sampling rates?
The power dissipation is 235 mW at 1 MSPS and 10 mW at 1 kSPS.
- What are the package options for the AD7952BCPZ?
The AD7952BCPZ is available in 48-lead LQFP and 48-lead LFCSP (7 mm × 7 mm) packages.
- What are some typical applications of the AD7952BCPZ?
Typical applications include process controls, medical instruments, high-speed data acquisition, digital signal processing, instrumentation, spectrum analysis, and Automated Test Equipment (ATE).
- Does the AD7952BCPZ have an internal reference?
Yes, the AD7952BCPZ has an internal 5 V reference with low drift (±3 ppm/°C).
