Overview
The AD7951BSTZRL is a 14-bit, high-speed analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the PulSAR® series and is fabricated using the iCMOS® high voltage process. It features a successive approximation register (SAR) architecture, which ensures high accuracy and low power consumption. The AD7951 is designed for a variety of applications requiring precise and fast analog-to-digital conversion, including process control, medical instruments, and high-speed data acquisition.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14-bit | |
| Sampling Rate | 1 MSPS (warp mode), 800 kSPS (normal mode), 670 kSPS (impulse mode) | |
| Input Ranges | 5 V, 10 V, ±5 V, ±10 V | |
| Integral Nonlinearity (INL) | ±0.3 LSB typ, ±1 LSB max | |
| Signal-to-Noise Ratio (SNR) | 85 dB @ 2 kHz | |
| Internal Reference Voltage | 5 V | |
| Internal Reference Drift | ±3 ppm/°C | |
| Power Dissipation | 10 mW @ 100 kSPS, 235 mW @ 1 MSPS | |
| Package Type | 48-Lead Low Profile Quad Flat Package (LQFP) | |
| Operating Temperature Range | −40°C to +85°C | |
| Data Interface | SPI, Parallel, DSP |
Key Features
- Multiple programmable input ranges: 5 V, 10 V, ±5 V, ±10 V through pins or serial SPI compatible interface.
- High-speed sampling rates: 1 MSPS in warp mode, 800 kSPS in normal mode, and 670 kSPS in impulse mode.
- No pipeline delay due to SAR architecture.
- Internal 5 V reference with low drift: ±3 ppm/°C.
- Low power consumption: 10 mW @ 100 kSPS and 235 mW @ 1 MSPS.
- Parallel (14- or 8-bit bus) and serial interface options.
- Compatibility with SPI, QSPI, MICROWIRE, and DSP interfaces.
Applications
- Process control
- Medical instruments
- High-speed data acquisition
- Digital signal processing
- Instrumentation
- Spectrum analysis
- Automated Test Equipment (ATE)
Q & A
- What is the resolution of the AD7951BSTZRL ADC?
The AD7951BSTZRL has a 14-bit resolution.
- What are the different sampling modes available for the AD7951BSTZRL?
The device supports warp mode (1 MSPS), normal mode (800 kSPS), and impulse mode (670 kSPS).
- What are the programmable input ranges for the AD7951BSTZRL?
The input ranges are 5 V, 10 V, ±5 V, and ±10 V.
- What is the typical integral nonlinearity (INL) of the AD7951BSTZRL?
The typical INL is ±0.3 LSB.
- What is the signal-to-noise ratio (SNR) of the AD7951BSTZRL at 2 kHz?
The SNR is 85 dB at 2 kHz.
- What is the internal reference voltage and its drift for the AD7951BSTZRL?
The internal reference voltage is 5 V with a drift of ±3 ppm/°C.
- What are the power dissipation values for the AD7951BSTZRL at different sampling rates?
The power dissipation is 10 mW @ 100 kSPS and 235 mW @ 1 MSPS.
- What package type is the AD7951BSTZRL available in?
The device is available in a 48-Lead Low Profile Quad Flat Package (LQFP).
- What is the operating temperature range for the AD7951BSTZRL?
The operating temperature range is −40°C to +85°C.
- What data interfaces are supported by the AD7951BSTZRL?
The device supports SPI, parallel, and DSP interfaces.
