Overview
The AD7989-5BCPZ-R2 is a high-performance, 18-bit successive approximation 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, each offering different conversion rates. The AD7989-5 is capable of converting 500,000 samples per second (500 kSPS), making it suitable for high-speed applications. It operates from a single power supply and features a low power consumption, making it ideal for battery-powered systems and applications requiring high accuracy and speed.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 18 bits |
| Conversion Rate | 500 kSPS (AD7989-5) |
| Power Supply | Single supply: 2.5 V ± 5% |
| Power Consumption | Typically 700 µW at 100 kSPS (AD7989-1), scales linearly with throughput |
| 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% of FS |
| Zero Error | ±100 µV to ±700 µV |
| Operating Temperature | −40°C to +85°C |
| Package | 10-Lead LFCSP (3mm x 3mm) |
Key Features
- Successive approximation ADC with on-chip track-and-hold amplifier.
- No pipeline delay or latency, ideal for multiple multiplexed channel applications.
- SPI-compatible serial interface, allowing daisy-chaining of several ADCs on a single 3-wire bus.
- Compatible with 1.8 V, 2.5 V, 3 V, and 5 V logic using a separate VIO supply.
- Low power consumption, making it suitable for battery-powered applications.
- Available in 10-lead MSOP and 10-lead LFCSP packages.
Applications
The AD7989-5BCPZ-R2 is versatile and can be used in a variety of high-performance applications, including:
- Battery-powered systems due to its low power consumption.
- Medical devices requiring high accuracy and speed.
- Industrial control systems where precise analog-to-digital conversion is necessary.
- Aerospace and defense applications where reliability and accuracy are critical.
- Test and measurement equipment where high-speed data acquisition is required.
Q & A
- What is the resolution of the AD7989-5BCPZ-R2?
The AD7989-5BCPZ-R2 has a resolution of 18 bits. - What is the conversion rate of the AD7989-5?
The AD7989-5 has a conversion rate of 500,000 samples per second (500 kSPS). - What is the typical power consumption of the AD7989-5 at 100 kSPS?
The typical power consumption is 700 µW at 100 kSPS, and it scales linearly with throughput. - What are the operating temperature ranges for the AD7989-5BCPZ-R2?
The operating temperature range is from −40°C to +85°C. - Is the AD7989-5 compatible with different logic levels?
Yes, it is compatible with 1.8 V, 2.5 V, 3 V, and 5 V logic using a separate VIO supply. - What types of packages are available for the AD7989-5?
The AD7989-5 is available in 10-lead MSOP and 10-lead LFCSP packages. - Does the AD7989-5 have any pipeline delay or latency?
No, the AD7989-5 does not exhibit any pipeline delay or latency. - How can multiple AD7989-5 ADCs be interfaced?
Multiple AD7989-5 ADCs can be daisy-chained on a single 3-wire bus using the SPI-compatible serial interface. - What is the input range for the AD7989-5?
The input range is typically from VREF × 0.475 to VREF × 0.525. - Is there an evaluation board available for the AD7989-5?
Yes, the EVAL-AD7989-5SDZ is a fully featured evaluation kit available for the AD7989-5.
