Overview
The AD4003BCPZ-RL7 is a high-accuracy, high-speed, low-power 18-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single power supply, VDD, and features an externally applied reference voltage, VREF, which can be set independently of the supply voltage. The AD4003 is part of the AD4003/AD4007/AD4011 family, known for their Easy Drive architecture, which reduces signal chain complexity and power consumption, enabling higher channel density.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 18 bits |
| Throughput Rate | Up to 2 MSPS |
| Conversion Time | 270 ns (complete cycle), 290 ns (acquisition phase) |
| Integral Nonlinearity Error (INL) | ±1.0 LSB |
| Input Voltage Range | −0.1 VREF to +0.1 VREF (span compression enabled) |
| Common-Mode Input Range | VREF/2 ± 0.125 VREF |
| Common-Mode Rejection Ratio (CMRR) | 68 dB at 500 kHz input frequency |
| Analog Input Current | 0.3 nA (acquisition phase), 1 μA (high-Z mode enabled, converting dc input at 2 MSPS) |
| Package | 10-Lead LFCSP (3mm x 3mm) |
| Operating Temperature Range | −40°C to +125°C |
Key Features
- Easy Drive Architecture: Reduces signal chain complexity and power consumption, enabling higher channel density and eliminating the need for a dedicated ADC driver.
- High Accuracy and Speed: Offers high accuracy with no missing codes and fast throughput rates up to 2 MSPS, allowing for the accurate capture of high-frequency signals.
- Low Power Consumption: Power scales linearly with throughput, making it suitable for battery-powered and low-power applications.
- Input Span Compression: Eliminates the need for a negative supply to the ADC driver amplifier while preserving access to the full ADC code range.
- Input Overvoltage Clamp: Protects the ADC inputs against overvoltage events, minimizing disturbances on the reference pin and eliminating the need for external protection diodes.
- Flexible Serial Interface: Supports 3-wire or 4-wire SPI interface, including daisy chain and CS modes, reducing digital input and output power consumption.
Applications
- Automated Test Equipment: High-speed and high-accuracy data acquisition is crucial in automated test equipment.
- Machine Automation: Precision data acquisition and control in industrial automation environments.
- Medical Equipment: High accuracy and reliability are essential in medical devices for precise measurements and diagnostics.
- Battery-Powered Equipment: Low power consumption makes it suitable for battery-powered devices requiring high accuracy and speed.
- Precision Data Acquisition Systems: Ideal for systems requiring high-speed and high-accuracy data conversion.
- Instrumentation and Control Systems: Used in various instrumentation and control applications where precision and speed are critical.
Q & A
- What is the resolution of the AD4003BCPZ-RL7 ADC?
The AD4003BCPZ-RL7 has a resolution of 18 bits.
- What is the maximum throughput rate of the AD4003BCPZ-RL7?
The maximum throughput rate is up to 2 MSPS.
- What is the conversion time for the AD4003BCPZ-RL7?
The conversion time is 270 ns for a complete cycle and 290 ns for the acquisition phase.
- What is the input voltage range for the AD4003BCPZ-RL7 with span compression enabled?
The input voltage range is −0.1 VREF to +0.1 VREF with span compression enabled.
- What is the common-mode rejection ratio (CMRR) of the AD4003BCPZ-RL7?
The CMRR is 68 dB at an input frequency of 500 kHz.
- What is the package type of the AD4003BCPZ-RL7?
The package type is a 10-Lead LFCSP (3mm x 3mm).
- What is the operating temperature range of the AD4003BCPZ-RL7?
The operating temperature range is −40°C to +125°C.
- What is the Easy Drive architecture in the AD4003BCPZ-RL7?
The Easy Drive architecture reduces signal chain complexity and power consumption, enabling higher channel density and eliminating the need for a dedicated ADC driver.
- What are some key applications of the AD4003BCPZ-RL7?
Key applications include automated test equipment, machine automation, medical equipment, battery-powered equipment, precision data acquisition systems, and instrumentation and control systems).
- Does the AD4003BCPZ-RL7 have input overvoltage protection?
Yes, the AD4003BCPZ-RL7 features an input overvoltage clamp that protects the ADC inputs against overvoltage events).
