Overview
The AD7981HFZ is a high-performance, 16-bit successive approximation register (SAR) analog-to-digital converter (ADC) designed and manufactured by Analog Devices Inc. This device is part of a series of high temperature qualified products, making it suitable for applications that require robust operation in extreme temperature environments. The AD7981HFZ offers fast throughput, high accuracy, and low power consumption, making it an ideal choice for various industrial and automotive applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Sample Rate | Up to 600 kSPS |
| Power Supply | Single supply, VDD |
| Logic Compatibility | 1.8 V, 2.5 V, 3 V, or 5 V |
| Temperature Range | −55°C to +210°C (10-Lead Ceramic Flat Package) |
| Package Type | 10-Lead Ceramic Flat Package (FLATPACK), 10-Lead Mini Small Outline Package (MSOP) |
| Reference Voltage | Externally applied, independent of VDD |
| Interface | SPI-compatible serial interface |
Key Features
- High temperature operation: Qualified for operation from −55°C to +210°C.
- Fast throughput: Sample rates up to 600 kSPS.
- Low power consumption: Power scales linearly with throughput.
- Flexible interface: SPI-compatible serial interface with daisy-chaining capability and optional busy indicator.
- Robust packaging: Available in 10-lead ceramic flat package (FLATPACK) and 10-lead mini small outline package (MSOP) with monometallic wire bonding.
Applications
The AD7981HFZ is suitable for a variety of applications that require high accuracy and robust operation in extreme temperatures. These include:
- Industrial control systems.
- Automotive systems.
- Aerospace and defense applications.
- High temperature data acquisition and control systems.
Q & A
- What is the resolution of the AD7981HFZ ADC?
The AD7981HFZ has a resolution of 16 bits. - What is the maximum sample rate of the AD7981HFZ?
The maximum sample rate is up to 600 kSPS. - What is the temperature range for the AD7981HFZ?
The device operates from −55°C to +210°C. - What types of packages are available for the AD7981HFZ?
The device is available in 10-lead ceramic flat package (FLATPACK) and 10-lead mini small outline package (MSOP). - Is the AD7981HFZ compatible with different logic levels?
Yes, it is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic. - How does the power consumption of the AD7981HFZ scale?
The power consumption scales linearly with throughput. - What type of interface does the AD7981HFZ use?
The device uses an SPI-compatible serial interface. - Can multiple AD7981HFZ ADCs be daisy-chained?
Yes, multiple ADCs can be daisy-chained on a single 3-wire bus. - What is the reference voltage configuration for the AD7981HFZ?
The reference voltage is externally applied and can be set independent of the supply voltage, VDD. - Is the AD7981HFZ qualified for high temperature operation?
Yes, it is qualified for up to 1000 hours of operation at the maximum temperature rating.
