Overview
The AD7952BSTZRL is a 14-bit, charge redistribution, successive approximation register (SAR) architecture analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is fabricated on Analog Devices’ iCMOS high voltage process and is designed for high-speed and high-accuracy data acquisition. The AD7952 features a dedicated write-only serial configuration port for input range and operating mode selection, and it includes an internal conversion clock, an internal reference, error correction circuits, and both serial and parallel system interface ports.
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 Bandwidth | 45 MHz | |
| Aperture Delay | 2 ns | |
| Aperture Jitter | 5 ps rms | |
| Internal Reference Voltage | 5.000 V typical | V |
| Internal Reference Temperature Drift | ±3 ppm/°C | |
| Power Dissipation | 235 mW @ 1 MSPS, 10 mW @ 1 kSPS | mW |
| Operating Temperature Range | −40°C to +85°C | °C |
| Package Type | 48-Lead LQFP (7mm x 7mm) |
Key Features
- High-speed 14-bit sampling ADC with SAR architecture, ensuring no pipeline delay.
- Four different analog input ranges and three sampling modes: warp mode, normal mode, and impulse mode.
- Internal conversion clock, internal reference (and buffer), and error correction circuits.
- Both serial and parallel system interface ports, compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
- Low power dissipation, with power scaling in impulse mode.
- High accuracy with ±0.3 LSB typical INL and ±1 LSB maximum INL.
- High signal-to-noise ratio (SNR) of 85 dB @ 2 kHz.
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 AD7952BSTZRL ADC?
The AD7952BSTZRL has a 14-bit resolution.
- What are the sampling rates available for the AD7952BSTZRL?
The AD7952BSTZRL offers sampling rates of 1 MSPS in warp mode, 800 kSPS in normal mode, and 670 kSPS in impulse mode.
- What is the typical signal-to-noise ratio (SNR) of the AD7952BSTZRL?
The SNR is typically 85 dB at 2 kHz.
- What is the operating temperature range of the AD7952BSTZRL?
The device operates from −40°C to +85°C.
- What types of interfaces does the AD7952BSTZRL support?
The device supports both serial and parallel system interface ports, compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
- How does the power dissipation vary with different sampling modes?
The power dissipation is 235 mW at 1 MSPS and scales down to 10 mW at 1 kSPS in different modes.
- What is the internal reference voltage of the AD7952BSTZRL?
The internal reference voltage is typically 5.000 V.
- What is the aperture delay of the AD7952BSTZRL?
The aperture delay is 2 ns.
- What are some common applications of the AD7952BSTZRL?
Common applications include process controls, medical instruments, high-speed data acquisition, digital signal processing, instrumentation, spectrum analysis, and automated test equipment (ATE).
- What package type is the AD7952BSTZRL available in?
The device is available in a 48-Lead LQFP (7mm x 7mm) package.
