Overview
The AD7665ACPZRL is a 16-bit, 570 kSPS (kilosamples per second) CMOS analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single 5 V power supply and is designed for high-speed applications. It features a charge redistribution successive approximation register (SAR) architecture and includes a high-speed 16-bit sampling ADC, a resistor input scaler for various input ranges, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports. The AD7665 is hardware factory-calibrated and comprehensively tested to ensure high performance in terms of signal-to-noise ratio (SNR), total harmonic distortion (THD), gain, offset, and linearity.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Resolution | 16 | Bits | |||
| Analog Input Voltage Range | ±4 REF, 0 V to 4 REF, ±2 REF | V | |||
| Common-Mode Input Voltage | -0.1 | +0.5 | V | ||
| Input Impedance | See Table I | ||||
| Throughput Speed - Warp Mode | 570 | kSPS | |||
| Throughput Speed - Normal Mode | 500 | kSPS | |||
| Throughput Speed - Impulse Mode | 444 | kSPS | |||
| Power Supply | 5 | V | |||
| Power Dissipation (Typical) | 64 | mW | |||
| Operating Temperature Range | -40 | +85 | °C |
Key Features
- Fast Throughput: The AD7665 offers high-speed sampling rates of up to 570 kSPS in Warp Mode and 500 kSPS in Normal Mode.
- Single-Supply Operation: Operates from a single 5 V power supply, with low power dissipation of 64 mW typical.
- Superior Linearity: Maximum integral nonlinearity of 2.5 LSB with no missing 16-bit code.
- Versatile Interface: Supports both serial and parallel interfaces, compatible with 3 V or 5 V logic.
- Multiple Operating Modes: Includes Warp, Normal, and Impulse modes to cater to different application requirements.
- High Performance CMOS Process: Fabricated using Analog Devices’ high-performance 0.6 micron CMOS process.
Applications
- Data Acquisition: Suitable for high-speed data acquisition systems.
- Communication: Used in communication systems requiring high-speed ADCs.
- Instrumentation: Ideal for various instrumentation applications, including spectrum analysis.
- Medical Instruments: Applied in medical devices that require precise and high-speed analog-to-digital conversion.
- Process Control: Used in process control systems that demand accurate and fast data conversion.
Q & A
- What is the resolution of the AD7665 ADC?
The AD7665 has a resolution of 16 bits.
- What are the different operating modes of the AD7665?
The AD7665 operates in Warp, Normal, and Impulse modes.
- What is the maximum sampling rate of the AD7665 in Warp Mode?
The maximum sampling rate in Warp Mode is 570 kSPS.
- What is the power supply voltage for the AD7665?
The AD7665 operates from a single 5 V power supply.
- What is the typical power dissipation of the AD7665?
The typical power dissipation is 64 mW.
- What are the supported interface types for the AD7665?
The AD7665 supports both serial and parallel interfaces, compatible with 3 V or 5 V logic.
- What is the operating temperature range of the AD7665?
The operating temperature range is from –40°C to +85°C.
- What is the common-mode input voltage range for the AD7665?
The common-mode input voltage range is from –0.1 V to +0.5 V.
- What are some typical applications of the AD7665?
The AD7665 is used in data acquisition, communication, instrumentation, medical instruments, and process control.
- What is the fabrication process used for the AD7665?
The AD7665 is fabricated using Analog Devices’ high-performance 0.6 micron CMOS process.
