Overview
The AD7790BRMZ-REEL, produced by Analog Devices Inc., is a 16-bit, single-channel, ultra-low power, sigma-delta analog-to-digital converter (ADC). This device is part of the AD7790 series and is designed for low-frequency measurement applications. It features a low power consumption profile, making it suitable for battery-powered devices and other applications where power efficiency is crucial.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Output Data Rate | 9.5 Hz to 120 Hz (software programmable) |
| Power Supply | 2.5 V to 5.25 V |
| Current Consumption | 65 µA (typical at 3 V), 75 µA (typical at 5 V) |
| Power-down Current | 1 µA (maximum) |
| RMS Noise | 1.1 µV at 9.5 Hz update rate |
| Integral Nonlinearity | 3.5 ppm (typical) |
| Input Type | Differential, buffered or unbuffered |
| Operating Temperature | -40°C to +105°C |
| Package | 10-Lead MSOP |
Key Features
- Ultra-low power consumption, suitable for battery-powered devices.
- Software programmable output data rates from 9.5 Hz to 120 Hz.
- Simultaneous 50 Hz and 60 Hz rejection.
- On-chip digital filtering for noise rejection and RFI reduction.
- Buffered or unbuffered differential input, accommodating significant source impedances.
- Single conversion mode and continuous conversion mode operation.
- Internal clock, eliminating the need for an external clock source.
Applications
- Pressure transducers and weigh scales.
- Temperature measurement applications.
- Low-frequency signal measurement in various industrial and medical devices.
- Battery-powered devices where low power consumption is critical.
Q & A
- What is the resolution of the AD7790BRMZ-REEL? The AD7790BRMZ-REEL has a 16-bit resolution.
- What is the power consumption of the AD7790BRMZ-REEL? The device consumes 65 µA (typical) at 3 V and 75 µA (typical) at 5 V.
- What are the programmable output data rates for the AD7790BRMZ-REEL? The output data rates are programmable from 9.5 Hz to 120 Hz.
- Does the AD7790BRMZ-REEL require an external clock source? No, the device operates from an internal clock, eliminating the need for an external clock source.
- What types of inputs does the AD7790BRMZ-REEL support? The device supports differential inputs, which can be either buffered or unbuffered.
- What are some common applications for the AD7790BRMZ-REEL? Common applications include pressure transducers, weigh scales, temperature measurement, and other low-frequency signal measurements.
- What is the operating temperature range of the AD7790BRMZ-REEL? The operating temperature range is -40°C to +105°C.
- What is the package type of the AD7790BRMZ-REEL? The device is housed in a 10-Lead MSOP package.
- Does the AD7790BRMZ-REEL support simultaneous 50 Hz and 60 Hz rejection? Yes, it does support simultaneous 50 Hz and 60 Hz rejection.
- Can the AD7790BRMZ-REEL operate in single conversion mode or continuous conversion mode? Yes, it can operate in both single conversion mode and continuous conversion mode.
