Overview
The AD677JR, produced by Analog Devices Inc., is a 16-bit serial output analog-to-digital converter (ADC) designed for high-performance applications. This device utilizes a switched-capacitor/charge redistribution architecture, achieving a conversion rate of 100 kSPS with a total conversion time of 10 µs. The AD677JR is optimized for both AC and DC performance, making it suitable for a wide range of signal processing and measurement applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Sampling Rate | 100 kSPS |
| Input Range | ±5 V to ±10 V (±VREF) |
| Supply Voltages | +5 V (digital), ±12 V (analog) |
| Power Consumption | Typically 450 mW (with 10 V reference), 360 mW (with 5 V reference) |
| Operating Temperature | 0°C to +70°C |
| Package Type | 28-lead SOIC |
| Data Interface | SPI |
| Input Type | Single Ended |
| Architecture | Successive Approximation (SAR) |
Key Features
- Autocalibration for excellent DC performance without user adjustments or external circuitry.
- High AC performance: –99 dB THD, 92 dB S/(N+D) peak spurious –101 dB.
- Industry-leading DC performance: 1.0 LSB INL, ±1 LSB full scale and offset.
- TTL compatible inputs and outputs.
- Easy serial interface to standard ADI DSPs.
- Separate analog and digital grounds and an analog ground sense for remote sensing.
- Integrated sample/hold function without the need for additional external circuitry.
Applications
The AD677JR is suitable for various applications requiring high-precision analog-to-digital conversion, including:
- Signal processing systems.
- Measurement instruments.
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
Q & A
- What is the resolution of the AD677JR?
The AD677JR has a resolution of 16 bits.
- What is the sampling rate of the AD677JR?
The AD677JR has a sampling rate of 100 kSPS.
- What are the supply voltages for the AD677JR?
The AD677JR operates from +5 V (digital) and ±12 V (analog) supplies.
- What is the operating temperature range of the AD677JR?
The AD677JR operates from 0°C to +70°C.
- What type of data interface does the AD677JR use?
The AD677JR uses an SPI (Serial Peripheral Interface) data interface.
- Does the AD677JR require external calibration?
No, the AD677JR features autocalibration, eliminating the need for user adjustments or additional external circuitry.
- What is the power consumption of the AD677JR during conversion?
The AD677JR typically consumes 450 mW with a 10 V reference and 360 mW with a 5 V reference during conversion.
- What type of package is the AD677JR available in?
The AD677JR is available in a 28-lead SOIC package.
- Does the AD677JR have integrated sample/hold functionality?
- What are some common applications for the AD677JR?
The AD677JR is commonly used in signal processing systems, measurement instruments, industrial control systems, medical devices, and aerospace and defense systems.
