Overview
The AD7665ACPZ is a 16-bit, 570 kSPS (kilosamples per second), charge redistribution Successive Approximation Register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This high-speed ADC operates from a single 5 V power supply and is designed for applications requiring high accuracy and fast throughput. The AD7665 features a resistor input scaler, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports. It is hardware factory-calibrated and comprehensively tested to ensure excellent ac and dc parameters, including 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 | Ω | |||
| Throughput Speed - Warp Mode | 1.75 µs | µs | |||
| Throughput Rate - Warp Mode | 570 kSPS | kSPS | |||
| Throughput Speed - Normal Mode | 2 µs | µs | |||
| Throughput Rate - Normal Mode | 500 kSPS | kSPS | |||
| Throughput Speed - Impulse Mode | 2.25 µs | µs | |||
| Throughput Rate - Impulse Mode | 444 kSPS | kSPS | |||
| Integral Linearity Error | -2.5 | LSB | |||
| Power Supply | 5 V | V | |||
| Power Dissipation (Typical) | 64 mW | mW | |||
| Operating Temperature Range | -40°C | 85°C | °C | ||
| Package Type | 48-Lead LFCSP (7mm x 7mm w/ EP) |
Key Features
- High-Speed Throughput: The AD7665 operates at speeds of up to 570 kSPS in Warp Mode, 500 kSPS in Normal Mode, and 444 kSPS in Impulse Mode.
- Single-Supply Operation: It operates from a single 5 V power supply and dissipates only 64 mW typical power, with lower power consumption in reduced throughput modes.
- Superior Linearity: The ADC features a maximum integral nonlinearity of 2.5 LSB with no missing 16-bit codes.
- Versatile Interface: It offers both serial and parallel interface options, compatible with 3 V or 5 V logic.
- Multiple Operating Modes: Includes Warp, Normal, and Impulse modes to cater to different application requirements, with power scaled according to throughput.
- 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 requiring precise and fast conversion rates.
- Communication: Used in communication systems where high sampling rates and low power consumption are critical.
- Instrumentation: Ideal for instrumentation applications such as spectrum analysis and medical instruments.
- Process Control: Applied in process control systems that demand high accuracy and reliability.
- Medical Instruments: Utilized in medical devices where precise and fast analog-to-digital conversion is essential.
Q & A
- What is the resolution of the AD7665ADC?
The AD7665 is a 16-bit analog-to-digital converter.
- What are the different operating modes of the AD7665?
The AD7665 operates in Warp, Normal, and Impulse modes.
- What is the maximum throughput rate of the AD7665 in Warp Mode?
The maximum throughput rate in Warp Mode is 570 kSPS.
- What is the typical power dissipation of the AD7665?
The typical power dissipation is 64 mW.
- What are the package options available for the AD7665?
The AD7665 is available in 48-Lead LFCSP and 48-Lead LQFP packages.
- What is the operating temperature range of the AD7665?
The operating temperature range is from -40°C to +85°C.
- Does the AD7665 support both serial and parallel interfaces?
Yes, it supports both serial and parallel interfaces compatible with 3 V or 5 V logic.
- What is the maximum integral nonlinearity of the AD7665?
The maximum integral nonlinearity is 2.5 LSB with no missing 16-bit codes.
- Is the AD7665 hardware factory-calibrated?
Yes, the AD7665 is hardware factory-calibrated and comprehensively tested.
- What is the common-mode input voltage range of the AD7665?
The common-mode input voltage range is from -0.1 V to 0.5 V.
