Overview
The AD677JN is a 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for high-performance applications requiring precise analog-to-digital conversion. The AD677 utilizes a switched-capacitor/charge redistribution architecture, achieving a conversion rate of 100 kSPS with a total conversion time of 10 µs. It features on-chip autocalibration, which enhances its dc performance by eliminating the need for user adjustments or external circuitry. The device is available in a 16-pin narrow plastic DIP package and operates from +5 V and ±12 V supplies, making it versatile for various 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 Voltage | +5 V (digital), ±12 V (analog) |
| Power Consumption | Typically 450 mW (10 V reference), 360 mW (5 V reference) |
| Operating Temperature | 0°C to +70°C |
| Package Type | 16-pin narrow plastic DIP, 28-lead SOIC |
| Data Interface | Serial (SPI compatible) |
| Input Type | Single-ended |
| THD | -99 dB |
| S/(N+D) Ratio | 92 dB peak spurious -101 dB |
Key Features
- On-chip 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.
- Separate analog and digital grounds to reduce digital crosstalk.
- Analog ground sense for remote sensing of the signal source ground potential.
- Easy serial interface compatible with standard ADI DSPs.
- TTL compatible inputs and outputs.
Applications
The AD677JN is suitable for a variety of applications requiring high-precision analog-to-digital conversion, including:
- Signal processing applications where dynamic parameters such as S/(N+D) ratio, THD, and IMD are critical.
- Measurement applications where precise dc performance is essential.
- Industrial control systems, medical devices, and data acquisition systems that require accurate and reliable analog-to-digital conversion.
Q & A
- What is the resolution of the AD677JN ADC?
The AD677JN has a resolution of 16 bits.
- What is the sampling rate of the AD677JN?
The AD677JN has a sampling rate of 100 kSPS).
- What are the supply voltage requirements for the AD677JN?
The AD677JN operates from +5 V (digital) and ±12 V (analog) supplies).
- What is the typical power consumption of the AD677JN?
The AD677JN typically consumes 450 mW (with a 10 V reference) or 360 mW (with a 5 V reference) during conversion).
- What is the operating temperature range of the AD677JN?
The AD677JN operates within a temperature range of 0°C to +70°C).
- What types of packages are available for the AD677JN?
The AD677JN is available in 16-pin narrow plastic DIP and 28-lead SOIC packages).
- What type of data interface does the AD677JN use?
The AD677JN uses a serial data interface compatible with SPI).
- Does the AD677JN require external circuitry for autocalibration?
No, the AD677JN features on-chip autocalibration, eliminating the need for external circuitry or user adjustments).
- What are the key ac performance specifications of the AD677JN?
The AD677JN has an ac performance of -99 dB THD and 92 dB S/(N+D) peak spurious -101 dB).
- Is the AD677JN RoHS compliant?
No, the AD677JN contains lead and is not RoHS compliant).
