Overview
The AD7951BCPZRL is a 14-bit, 1 MSPS (Mega Samples Per Second), unipolar/bipolar programmable input analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is fabricated on Analog Devices' iCMOS high voltage process and features a successive approximation register (SAR) architecture. It is designed for high-speed data acquisition and offers multiple programmable input ranges and operating modes. The AD7951BCPZRL is available in a 48-lead Lead Frame Chip Scale Package (LFCSP) and operates over a temperature range of −40°C to +85°C.
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 Non-Linearity (INL) | ±0.3 LSB typ, ±1 LSB max | |
| Signal-to-Noise Ratio (SNR) | 85 dB @ 2 kHz | |
| Internal Reference | 5 V, drift: 3 ppm/°C | |
| Power Dissipation | 10 mW @ 100 kSPS, 235 mW @ 1 MSPS | |
| Package | 48-lead LFCSP (7 mm × 7 mm) | |
| Operating Temperature | −40°C to +85°C |
Key Features
- Multiple programmable input ranges: 5 V, 10 V, ±5 V, ±10 V through pins or serial SPI compatible interface.
- Three different sampling modes: warp mode, normal mode, and impulse mode.
- No pipeline delay due to SAR architecture.
- Parallel (14- or 8-bit bus) and serial 5 V/3.3 V interface.
- SPI-/QSPI-/MICROWIRE-/DSP-compatible interface.
- Internal conversion clock and internal reference with buffer.
- Error correction circuits.
- TEMP output for temperature monitoring.
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 AD7951BCPZRL ADC?
The AD7951BCPZRL has a 14-bit resolution. - What are the different sampling modes available on the AD7951BCPZRL?
The device offers three sampling modes: warp mode, normal mode, and impulse mode. - What are the programmable input ranges for the AD7951BCPZRL?
The input ranges are 5 V, 10 V, ±5 V, and ±10 V. - What is the signal-to-noise ratio (SNR) of the AD7951BCPZRL?
The SNR is 85 dB at 2 kHz. - Does the AD7951BCPZRL have an internal reference?
Yes, it has a 5 V internal reference with a drift of 3 ppm/°C. - What is the power dissipation of the AD7951BCPZRL at different sampling rates?
The power dissipation is 10 mW @ 100 kSPS and 235 mW @ 1 MSPS. - In what package is the AD7951BCPZRL available?
The device is available in a 48-lead Lead Frame Chip Scale Package (LFCSP). - What is the operating temperature range of the AD7951BCPZRL?
The operating temperature range is −40°C to +85°C. - Is the AD7951BCPZRL compatible with SPI and other serial interfaces?
Yes, it is compatible with SPI, QSPI, MICROWIRE, and DSP interfaces. - Does the AD7951BCPZRL have any error correction circuits?
Yes, it includes error correction circuits.
