Overview
The AD7675ACPRL is a 16-bit, 100 kSPS (kilosamples per second), fully differential 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-performance applications. It features a charge redistribution successive approximation register (SAR) architecture and includes an internal conversion clock and error correction circuits. The AD7675ACPRL is available in a 48-lead LFCSP (Lead Frame Chip Scale Package) and is specified to operate over a temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Resolution | 16 Bits | ||||
| Analog Input Voltage Range | V | ||||
| Sampling Rate | 100 kSPS | ||||
| Integral Nonlinearity (INL) | 1.5 LSB | ||||
| Signal-to-Noise Ratio (SNR) | 92 dB | 94 dB | dB | ||
| Power Supply | 5 V | V | |||
| Power Dissipation (Typical) | 17 mW | mW | |||
| Power-Down Current | 7 µW | µW | |||
| Interface | Serial (2-wire) or Parallel (8/16 bits) |
Key Features
- Excellent Linearity: The AD7675ACPRL has a maximum integral nonlinearity of 1.5 LSB with no missing 16-bit codes.
- Superior AC Performance: It offers a minimum signal-to-noise ratio (SNR) of 92 dB and a typical SNR of 94 dB.
- Fast Throughput: The device operates at a sampling rate of 100 kSPS and features internal error correction circuitry.
- Single-Supply Operation: It operates from a single 5 V power supply and dissipates only 17 mW typically, with power dissipation decreasing with throughput.
- Versatile Interface: The ADC supports both serial (2-wire) and parallel (8/16 bits) interfaces, compatible with either 3 V or 5 V logic.
Applications
- CT Scanners: Used in computed tomography scanners for precise signal acquisition.
- Data Acquisition and Instrumentation: Suitable for various data acquisition and instrumentation applications requiring high accuracy and speed.
- Spectrum Analysis: Employed in spectrum analysis due to its superior AC performance.
- Medical Instruments: Used in medical devices where high precision and reliability are crucial.
- Battery-Powered Systems and Process Control: Ideal for battery-powered systems and process control applications due to its low power consumption.
Q & A
- What is the resolution of the AD7675ACPRL ADC?
The AD7675ACPRL has a resolution of 16 bits.
- What is the sampling rate of the AD7675ACPRL?
The sampling rate of the AD7675ACPRL is 100 kSPS.
- What is the power supply requirement for the AD7675ACPRL?
The AD7675ACPRL operates from a single 5 V power supply.
- What are the interface options for the AD7675ACPRL?
The device supports both serial (2-wire) and parallel (8/16 bits) interfaces.
- What is the typical power dissipation of the AD7675ACPRL?
The typical power dissipation is 17 mW, which decreases with throughput.
- What is the maximum integral nonlinearity (INL) of the AD7675ACPRL?
The maximum INL is 1.5 LSB with no missing 16-bit codes.
- What are some common applications of the AD7675ACPRL?
Common applications include CT scanners, data acquisition and instrumentation, spectrum analysis, medical instruments, and battery-powered systems.
- What is the operating temperature range of the AD7675ACPRL?
The operating temperature range is –40°C to +85°C.
- What package types are available for the AD7675ACPRL?
The device is available in a 48-lead LFCSP (Lead Frame Chip Scale Package).
- How does the power consumption change when the device is in power-down mode?
In power-down mode, the device consumes a maximum of 7 µW.
