Overview
The AD9237BCPZ-20 is a high-performance, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device operates at sample rates of 20 MSPS and is part of a family that includes 40 MSPS and 65 MSPS variants. The AD9237 features a multistage differential pipelined architecture with output error correction logic, ensuring 12-bit accuracy and no missing codes over the full operating temperature range. It is fabricated on an advanced CMOS process and is available in a 32-lead LFCSP package, making it suitable for applications requiring low power consumption and high performance.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Sample Rate | 20 | - | - | MSPS |
| Resolution | 12 | - | - | Bits |
| Power Consumption | - | 90 | - | mW |
| Supply Voltage | - | 3 | - | V |
| Operating Temperature | -40 | - | 85 | °C |
| Signal-to-Noise Ratio (SNR) | - | 66.5 | - | dBc |
| Effective Number of Bits (ENOB) | - | 10.5 | - | Bits |
| Input Capacitance | - | 2 | - | pF |
| High Level Input Voltage | 2.0 | - | - | V |
| Low Level Input Voltage | - | 0.8 | - | V |
Key Features
- High-performance sample-and-hold amplifier (SHA) and voltage reference.
- Ultra-low power consumption: 90 mW at 20 MSPS.
- Flexible and selectable analog input ranges: 4Vp-p to 1Vp-p.
- Supports straight binary, twos complement, and gray code output formats.
- Output enable pin and 2-step power down (full power down and sleep mode).
- Differential input with 500 MHz full power bandwidth.
- No missing codes over the full operating temperature range.
Applications
- Imaging and medical ultrasound.
- Battery-powered instruments.
- Hand-held scopemeters.
- Low-cost digital oscilloscopes.
- Low-power digital still cameras and copiers.
- Low-power communications.
Q & A
- What is the sample rate of the AD9237BCPZ-20?
The AD9237BCPZ-20 operates at a sample rate of 20 MSPS.
- What is the resolution of the AD9237BCPZ-20?
The AD9237BCPZ-20 has a resolution of 12 bits.
- How much power does the AD9237BCPZ-20 consume at 20 MSPS?
The AD9237BCPZ-20 consumes approximately 90 mW at 20 MSPS.
- What is the operating temperature range of the AD9237BCPZ-20?
The operating temperature range is from -40°C to +85°C.
- What are the supported output formats of the AD9237BCPZ-20?
The AD9237BCPZ-20 supports straight binary, twos complement, and gray code output formats.
- Does the AD9237BCPZ-20 have power-down modes?
Yes, it has 2-step power down modes: full power down and sleep mode.
- What is the full power bandwidth of the differential input?
The full power bandwidth of the differential input is 500 MHz.
- What type of package is the AD9237BCPZ-20 available in?
The AD9237BCPZ-20 is available in a 32-lead LFCSP package.
- What are some typical applications of the AD9237BCPZ-20?
Typical applications include imaging and medical ultrasound, battery-powered instruments, hand-held scopemeters, and low-power digital oscilloscopes.
- What is the signal-to-noise ratio (SNR) of the AD9237BCPZ-20?
The SNR of the AD9237BCPZ-20 is approximately 66.5 dBc.
