Overview
The AD7790BRMZ is a 16-bit, single-channel, ultra-low power Sigma-Delta analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is designed for low-frequency measurement applications and is known for its high accuracy and low power consumption. The AD7790BRMZ operates from a supply voltage range of 2.5 V to 5.25 V and is housed in a compact 10-lead MSOP package, making it suitable for a variety of applications where space and power efficiency are critical.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7790BRMZ |
| Description | IC ADC 16BIT SIGMA-DELTA 10-MSOP |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Number of Bits | 16 |
| Sampling Rate (Per Second) | 120 |
| Number of Inputs | 1 |
| Input Type | Differential |
| Data Interface | SPI, DSP |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog/Digital | 2.5 V ~ 5.25 V |
| Operating Temperature | -40°C ~ 105°C |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Key Features
- Ultra-Low Power Consumption: The AD7790BRMZ consumes typically 65 µA of current when operated with a 3 V power supply and 75 µA with a 5 V power supply, making it highly energy-efficient.
- High Accuracy: The device offers high accuracy conversions with a peak-to-peak resolution of 16 bits at the default output data rate of 16.6 Hz.
- Programmable Output Data Rate: The output data rate is software programmable, allowing rates from 9.5 Hz to 120 Hz.
- Simultaneous 50 Hz/60 Hz Rejection: Achieved at an output data rate of 16.6 Hz, ensuring robust performance in noisy environments.
- Buffered Input: The device features a buffered input, which can be configured as either buffered or unbuffered.
- PGA (Programmable Gain Amplifier): Integrated PGA allows for flexible gain settings.
- Auto-Zero and Auto-Calibration: Built-in auto-zero and auto-calibration capabilities enhance the device's accuracy and reliability.
Applications
- Infrared Thermography: Suitable for precise temperature measurements in thermography applications.
- Power Metering: Used in power measurement systems due to its high accuracy and low power consumption.
- Medical Devices: Applicable in medical equipment where low power and high precision are required).
- Communications Systems: Can be used in various communication systems that require precise analog-to-digital conversion).
Q & A
- What is the resolution of the AD7790BRMZ?
The AD7790BRMZ has a 16-bit resolution.
- What is the sampling rate of the AD7790BRMZ?
The sampling rate of the AD7790BRMZ is up to 120 samples per second.
- What is the power supply voltage range for the AD7790BRMZ?
The device operates from a supply voltage range of 2.5 V to 5.25 V.
- What type of input does the AD7790BRMZ have?
The AD7790BRMZ has a differential input.
- What data interfaces does the AD7790BRMZ support?
The device supports SPI and DSP data interfaces.
- Is the AD7790BRMZ RoHS compliant?
Yes, the AD7790BRMZ is lead-free and RoHS compliant.
- What is the operating temperature range of the AD7790BRMZ?
The operating temperature range is -40°C to 105°C.
- Does the AD7790BRMZ have built-in auto-zero and auto-calibration features?
Yes, the device includes built-in auto-zero and auto-calibration capabilities.
- Can the output data rate of the AD7790BRMZ be programmed?
Yes, the output data rate is software programmable from 9.5 Hz to 120 Hz.
- What are some typical applications of the AD7790BRMZ?
Typical applications include infrared thermography, power metering, medical devices, and communications systems.
