Overview
The AD9237BCPZ-65 is a high-performance, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This monolithic device operates on a single 3V supply and features a multistage differential pipelined architecture with output error correction logic. It is designed to provide 12-bit accuracy at sampling rates of 20, 40, and 65 MSPS. The AD9237 is notable for its ultra-low power consumption, flexible analog input ranges, and high-performance sample-and-hold amplifier, making it suitable for a variety of applications requiring high-speed and low-power conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 20, 40, 65 MSPS |
| Power Supply | Single 3V |
| Power Consumption | 90mW @ 20MSPS, 135mW @ 40MSPS, 190mW @ 65MSPS |
| Signal-to-Noise Ratio (SNR) | 66.5 dBc (to Nyquist) |
| Spurious Free Dynamic Range (SFDR) | 82 dBc @ 2.4MHz |
| Analog Input Range | 4Vp-p to 1Vp-p |
| Input Type | Differential, Single-ended |
| Output Format | Straight Binary, Twos Complement, Gray Code |
| Package Type | 32-Lead Lead Frame Chip Scale Package (LFCSP_WQ) |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Ultra-low power consumption: 90mW @ 20MSPS, 135mW @ 40MSPS, 190mW @ 65MSPS.
- High-performance sample-and-hold amplifier with a full power bandwidth of 500MHz.
- Flexible and selectable analog input ranges from 4Vp-p to 1Vp-p.
- Support for straight binary, twos complement, and gray code output formats.
- Output Enable pin for multiplexing of the outputs.
- Two-step power down: full power down and sleep mode.
- Out-of-range (OTR) signal to indicate overflow conditions.
- Pin compatible with the AD9235 for simplified system design.
Applications
- Ultrasound and medical imaging.
- Battery-powered instruments.
- Hand-held scopemeters.
- Low-cost digital oscilloscopes.
- Low-power digital still cameras and copiers.
- Low-power communications systems.
Q & A
- What is the resolution of the AD9237BCPZ-65? The AD9237BCPZ-65 has a resolution of 12 bits.
- What are the sampling rates supported by the AD9237BCPZ-65? The AD9237BCPZ-65 supports sampling rates of 20, 40, and 65 MSPS.
- What is the power consumption of the AD9237BCPZ-65 at different sampling rates? The power consumption is 90mW @ 20MSPS, 135mW @ 40MSPS, and 190mW @ 65MSPS.
- What are the supported output formats of the AD9237BCPZ-65? The AD9237BCPZ-65 supports straight binary, twos complement, and gray code output formats.
- What is the operating temperature range of the AD9237BCPZ-65? The operating temperature range is -40°C to +85°C.
- What types of analog inputs does the AD9237BCPZ-65 support? The AD9237BCPZ-65 supports both differential and single-ended analog inputs.
- Does the AD9237BCPZ-65 have power-down modes? Yes, it has two-step power down: full power down and sleep mode.
- What is the purpose of the Output Enable pin on the AD9237BCPZ-65? The Output Enable pin allows for the multiplexing of the outputs.
- Is the AD9237BCPZ-65 pin compatible with other models? Yes, it is pin compatible with the AD9235.
- What is the significance of the OTR (Out-of-Range) signal on the AD9237BCPZ-65? The OTR signal indicates when the input signal is beyond the selected input range.
