Overview
The AD7989-1BRMZ is a high-performance, 18-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This PulSAR ADC is designed for applications requiring high accuracy and low power consumption. The AD7989-1BRMZ operates at a conversion rate of 100 kSPS and is particularly suited for battery-powered devices due to its low power consumption of typically 700 µW at 100 kSPS. It features an on-chip track-and-hold amplifier and does not exhibit any pipeline delay or latency, making it ideal for multiple multiplexed channel applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 18 bits | |
| Conversion Rate | 100 kSPS | |
| Power Consumption | Typically 700 µW at 100 kSPS | µW |
| Input Range | VREF × 0.475 to VREF × 0.525 | V |
| Differential Nonlinearity Error (DNL) | −0.85 to +1.5 LSB | LSB |
| Integral Nonlinearity Error (INL) | −2 to +2 LSB | LSB |
| Gain Error | −0.023 to +0.023 % of FS | % of FS |
| Zero Error | ±100 to ±700 µV | µV |
| Power Supply Rejection Ratio (PSRR) | 90 dB | dB |
| Operating Temperature Range | −40 to 85°C | °C |
| Package Type | 10-Lead MSOP or 10-Lead LFCSP |
Key Features
- High-resolution 18-bit conversion with no missing codes.
- Low power consumption, typically 700 µW at 100 kSPS, making it ideal for battery-powered applications.
- On-chip track-and-hold amplifier with no pipeline delay or latency.
- Compatible with 1.8 V to 5 V digital logic families.
- Available in compact 10-lead MSOP or LFCSP packages for space savings and flexible configurations.
- Successive approximation ADC based on a charge redistribution digital-to-analog converter (DAC).
- High accuracy with low differential and integral nonlinearity errors.
Applications
- Battery-powered devices due to its low power consumption.
- Multiple multiplexed channel applications due to the absence of pipeline delay or latency.
- High-accuracy data acquisition systems.
- Medical devices requiring precise analog-to-digital conversion.
- Industrial automation and control systems.
- Aerospace and defense applications where high resolution and accuracy are critical.
Q & A
- What is the resolution of the AD7989-1BRMZ ADC?
The AD7989-1BRMZ has a resolution of 18 bits.
- What is the conversion rate of the AD7989-1BRMZ?
The AD7989-1BRMZ operates at a conversion rate of 100 kSPS.
- How much power does the AD7989-1BRMZ typically consume at 100 kSPS?
The AD7989-1BRMZ typically consumes 700 µW at 100 kSPS.
- What is the input range of the AD7989-1BRMZ?
The input range is from VREF × 0.475 to VREF × 0.525.
- Does the AD7989-1BRMZ have any pipeline delay or latency?
No, the AD7989-1BRMZ does not exhibit any pipeline delay or latency.
- What types of packages are available for the AD7989-1BRMZ?
The AD7989-1BRMZ is available in 10-lead MSOP or 10-lead LFCSP packages.
- What is the operating temperature range of the AD7989-1BRMZ?
The operating temperature range is from −40 to 85°C.
- Is the AD7989-1BRMZ compatible with different digital logic families?
Yes, it is compatible with 1.8 V to 5 V digital logic families.
- What type of ADC architecture does the AD7989-1BRMZ use?
The AD7989-1BRMZ uses a successive approximation ADC based on a charge redistribution digital-to-analog converter (DAC).
- What are some typical applications of the AD7989-1BRMZ?
Typical applications include battery-powered devices, multiple multiplexed channel applications, high-accuracy data acquisition systems, medical devices, industrial automation, and aerospace and defense applications.
