Overview
The AD7690BRMZ, manufactured by Analog Devices Inc., is an 18-bit successive approximation analog-to-digital converter (ADC) designed for high precision and speed. This device operates from a single power supply and features a low power, high-speed ADC with no missing codes. It includes an internal conversion clock and a versatile SPI-compatible serial interface. The AD7690BRMZ is part of the PulSAR® series, known for its high performance and reliability in various applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Sampling Rate | 400 kSPS |
| Operating Supply Voltage | 5V |
| Package Type | 10-Lead MSOP, 10-Lead QFN (LFCSP) |
| Temperature Range | -40°C to +85°C |
| Conversion Time-Max | 2μs |
| Differential Nonlinearity (DNL) | -1 LSB |
| Signal to Noise Ratio (SNR) | Not specified, but typically high for PulSAR® series |
| Output Format | SERIAL |
| RoHS Status | ROHS3 Compliant |
Key Features
- High Precision: 18-bit resolution with no missing codes and low differential nonlinearity (-1 LSB).
- High Speed: Sampling rate of up to 400 kSPS.
- Low Power: Power consumption scales linearly with throughput.
- Versatile Interface: SPI-compatible serial interface with daisy-chaining capability and optional busy indicator.
- Flexible Logic Compatibility: Compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic using a separate VIO supply.
- Compact Packaging: Available in 10-Lead MSOP and 10-Lead QFN (LFCSP) packages.
Applications
The AD7690BRMZ is suitable for a variety of applications requiring high precision and speed, including:
- Industrial process control and automation.
- Medical devices, such as patient monitoring systems.
- Aerospace and defense systems.
- High-performance data acquisition systems.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD7690BRMZ?
The AD7690BRMZ has an 18-bit resolution.
- What is the maximum sampling rate of the AD7690BRMZ?
The maximum sampling rate is 400 kSPS.
- What is the operating supply voltage for the AD7690BRMZ?
The operating supply voltage is 5V.
- What types of packages are available for the AD7690BRMZ?
The device is available in 10-Lead MSOP and 10-Lead QFN (LFCSP) packages.
- What is the temperature range for the AD7690BRMZ?
The temperature range is -40°C to +85°C.
- Is the AD7690BRMZ RoHS compliant?
Yes, the AD7690BRMZ is ROHS3 compliant.
- What is the conversion time-max for the AD7690BRMZ?
The conversion time-max is 2μs.
- Can the AD7690BRMZ be daisy-chained with other ADCs?
Yes, the AD7690BRMZ supports daisy-chaining using its SPI-compatible serial interface.
- What logic voltages is the AD7690BRMZ compatible with?
The device is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic using a separate VIO supply.
- Is there an evaluation kit available for the AD7690BRMZ?
Yes, the EVAL-AD7690SDZ evaluation kit is available for detailed performance analysis.
