Overview
The AD7654ASTZRL is a 16-bit, dual-channel, analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for simultaneous sampling and features a charge redistribution successive approximation register (SAR) architecture. It operates from a single 5 V power supply and is known for its low cost and high performance. The AD7654 includes two low noise, wide bandwidth track-and-hold amplifiers, a high-speed 16-bit ADC, an internal conversion clock, and error correction circuits. It also supports both serial and parallel system interface ports, making it versatile for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 16 Bits | |||
| Analog Input Voltage Range | 0 | 5 | V | |
| Common-Mode Input Voltage | -0.1 | 0.5 | V | |
| Input Current | 45 | μA | ||
| Throughput Rate (Normal Mode) | 500 | kSPS | ||
| Throughput Rate (Impulse Mode) | 444 | kSPS | ||
| Integral Linearity Error | -3.5 | 3.5 | LSB | |
| Power Dissipation (Typical) | 120 | mW | ||
| Power Dissipation (Impulse Mode, 10 kSPS) | 2.6 | mW | ||
| Package | 48-Lead Low Profile Quad Flat Package (LQFP) or 48-Lead Lead Frame Chip Scale Package (LFCSP) | |||
Key Features
- Simultaneous Sampling: The AD7654 features two sample-and-hold circuits that allow simultaneous sampling of four channels.
- Fast Throughput: It is a 500 kSPS, charge redistribution, 16-bit SAR ADC with internal error correction circuitry.
- Superior INL and No Missing Codes: The AD7654 has a maximum integral nonlinearity of 3.5 LSB with no missing 16-bit codes.
- Single-Supply Operation: The AD7654 operates from a single 5 V supply, with power dissipation decreasing with throughput in impulse mode.
- Flexible Interface: Supports both serial and parallel system interface ports, compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
Applications
- AC Motor Control: Suitable for controlling AC motors due to its simultaneous sampling capability.
- 3-Phase Power Control: Ideal for applications requiring precise control over three-phase power systems.
- 4-Channel Data Acquisition: Used in data acquisition systems where multiple channels need to be sampled simultaneously.
- Uninterrupted Power Supplies: Can be used in UPS systems to ensure continuous monitoring and control.
- Communications: Applicable in various communication systems requiring high-speed and accurate analog-to-digital conversion.
Q & A
- What is the resolution of the AD7654ASTZRL ADC?
The AD7654ASTZRL has a resolution of 16 bits.
- What is the analog input voltage range of the AD7654ASTZRL?
The analog input voltage range is from 0 V to 5 V.
- What is the throughput rate of the AD7654ASTZRL in normal mode?
The throughput rate in normal mode is up to 500 kSPS.
- Does the AD7654ASTZRL support simultaneous sampling?
Yes, it supports simultaneous sampling of four channels.
- What types of packages are available for the AD7654ASTZRL?
It is available in 48-Lead Low Profile Quad Flat Package (LQFP) and 48-Lead Lead Frame Chip Scale Package (LFCSP).
- What is the power supply requirement for the AD7654ASTZRL?
The AD7654ASTZRL operates from a single 5 V power supply.
- What is the typical power dissipation of the AD7654ASTZRL?
The typical power dissipation is 120 mW, and it decreases to 2.6 mW at 10 kSPS in impulse mode.
- Does the AD7654ASTZRL have any missing codes?
No, the AD7654ASTZRL has no missing 16-bit codes.
- What are the common applications of the AD7654ASTZRL?
Common applications include AC motor control, 3-phase power control, 4-channel data acquisition, uninterrupted power supplies, and communications.
- What interfaces does the AD7654ASTZRL support?
The AD7654ASTZRL supports both serial and parallel system interface ports, compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
