Overview
The AD7989-1BCPZ-R2 is a high-performance, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the AD7989 series, which includes the AD7989-1 and AD7989-5 models, differing primarily in their conversion rates. The AD7989-1 operates at a conversion rate of 100 kSPS, making it suitable for applications requiring high accuracy and low power consumption, particularly in battery-powered systems.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 18 bits |
| Conversion Rate | 100 kSPS (AD7989-1) |
| Input Range | VREF × 0.475 to VREF × 0.525 |
| Differential Nonlinearity Error (DNL) | −0.85 to +1.5 LSB |
| Integral Nonlinearity Error (INL) | −2 to +2 LSB |
| Gain Error | −0.023% to +0.004% of FS |
| Zero Error | ±100 µV to ±700 µV |
| Power Supply Rejection Ratio (PSRR) | 90 dB |
| Power Consumption | Typically 700 µW at 100 kSPS |
| Package | 10-lead MSOP or 10-lead LFCSP |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- High Accuracy: The AD7989-1 features high accuracy with no missing codes, low differential and integral nonlinearity errors, and minimal gain and zero errors.
- Low Power Consumption: It consumes typically 700 µW at 100 kSPS, making it ideal for battery-powered applications.
- Flexible Interface: The ADC can be interfaced to any 1.8 V to 5 V digital logic family.
- Compact Packaging: Available in 10-lead MSOP or 10-lead LFCSP packages, allowing for space savings and flexible configurations.
- On-Chip Track-and-Hold Amplifier: No pipeline delay or latency, suitable for multiple multiplexed channel applications.
Applications
The AD7989-1BCPZ-R2 is suitable for a variety of applications, including:
- Battery-Powered Systems: Due to its low power consumption, it is ideal for portable and battery-powered devices.
- Medical Devices: High accuracy and low noise make it suitable for medical diagnostic equipment.
- Industrial Automation: Used in data acquisition systems requiring high precision and reliability.
- Aerospace and Defense: Its robust performance and low power consumption make it a good fit for various military and aerospace applications.
Q & A
- What is the resolution of the AD7989-1BCPZ-R2?
The AD7989-1BCPZ-R2 has a resolution of 18 bits. - What is the conversion rate of the AD7989-1?
The AD7989-1 operates at a conversion rate of 100 kSPS. - What is the typical power consumption of the AD7989-1 at 100 kSPS?
The typical power consumption is 700 µW. - What are the available package types for the AD7989-1?
The AD7989-1 is available in 10-lead MSOP and 10-lead LFCSP packages. - Does the AD7989-1 have an on-chip track-and-hold amplifier?
Yes, the AD7989-1 includes an on-chip track-and-hold amplifier. - What is the operating temperature range of the AD7989-1?
The operating temperature range is -40°C to +85°C. - Can the AD7989-1 be interfaced with any digital logic family?
Yes, it can be interfaced with any 1.8 V to 5 V digital logic family. - What is the gain error of the AD7989-1?
The gain error is −0.023% to +0.004% of full scale. - What is the power supply rejection ratio (PSRR) of the AD7989-1?
The PSRR is 90 dB. - Is the AD7989-1 suitable for multiple multiplexed channel applications?
Yes, due to its lack of pipeline delay or latency.
