Overview
The AD7690BRMZ-RL7 is an 18-bit, successive approximation, analog-to-digital converter (ADC) produced by Analog Devices Inc. This component operates from a single power supply and is known for its high precision and low power consumption. It features a built-in track-and-hold circuit and does not exhibit pipeline delay or latency, making it suitable for multiple multiplexed channel applications. The AD7690 is housed in a compact 10-lead MSOP or 10-lead QFN (LFCSP) package, allowing for space savings and flexible configurations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 18-bit | |
| Sampling Rate | 400 kSPS | |
| Power Supply | 4.75 V to 5.25 V | V |
| Temperature Range | -40°C to +85°C | °C |
| Package Type | 10-Lead MSOP, 10-Lead QFN (LFCSP) | |
| Conversion Time | 0.5 to 2.1 μs | μs |
| Acquisition Time | 400 ns | ns |
| Energy per Conversion | 50 nJ/sample | nJ/sample |
| Integral Nonlinearity (INL) | 1.5 LSB | LSB |
| Differential Nonlinearity (DNL) | -1 LSB | LSB |
| RoHS Status | Compliant |
Key Features
- High Precision: The AD7690 features 18-bit resolution with an integral nonlinearity (INL) of 1.5 LSB and differential nonlinearity (DNL) of -1 LSB, ensuring high accuracy in analog-to-digital conversion.
- Low Power Consumption: The ADC powers down between conversions, making it ideal for battery-powered applications. It consumes 50 μW at 1 kSPS, for example.
- Fast Conversion Rate: The AD7690 can convert 400,000 samples per second, making it suitable for high-speed data acquisition applications.
- Flexible Interface: The SPI-compatible serial interface allows daisy-chaining of multiple ADCs on a single 3-wire bus and supports 1.8 V to 5 V digital logic families.
- Compact Packaging: Available in 10-lead MSOP and 10-lead QFN (LFCSP) packages, which are space-efficient and offer flexible configurations.
Applications
The AD7690BRMZ-RL7 is versatile and can be used in a variety of applications, including:
- Industrial Automation: For precise measurement and control in industrial environments.
- Medical Devices: In medical equipment requiring high accuracy and low power consumption.
- Aerospace and Defense: For applications needing robust and reliable analog-to-digital conversion.
- Automotive Systems: In automotive sensors and control systems requiring high precision and reliability.
- Battery-Powered Devices: Ideal for devices that require low power consumption to extend battery life.
Q & A
- What is the resolution of the AD7690BRMZ-RL7?
The AD7690BRMZ-RL7 has an 18-bit resolution.
- What is the maximum sampling rate of the AD7690BRMZ-RL7?
The maximum sampling rate is 400 kSPS.
- What are the package options for the AD7690BRMZ-RL7?
The AD7690BRMZ-RL7 is available in 10-lead MSOP and 10-lead QFN (LFCSP) packages.
- What is the temperature range for the AD7690BRMZ-RL7?
The temperature range is -40°C to +85°C.
- Is the AD7690BRMZ-RL7 RoHS compliant?
Yes, the AD7690BRMZ-RL7 is RoHS compliant.
- What is the typical power consumption of the AD7690BRMZ-RL7 at 1 kSPS?
The typical power consumption at 1 kSPS is 50 μW.
- Does the AD7690BRMZ-RL7 have an internal conversion clock?
Yes, the AD7690BRMZ-RL7 has an internal conversion clock.
- Can the AD7690BRMZ-RL7 be daisy-chained with other ADCs?
Yes, the AD7690BRMZ-RL7 supports daisy-chaining on a single 3-wire bus.
- What is the energy per conversion for the AD7690BRMZ-RL7?
The energy per conversion is 50 nJ/sample.
- Is the AD7690BRMZ-RL7 compatible with different digital logic families?
Yes, it is compatible with 1.8 V to 5 V digital logic families.
