Overview
The AD7654ACPZRL is a low-cost, simultaneous sampling, dual-channel, 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single 5 V power supply and features two low-noise, wide-bandwidth track-and-hold amplifiers, allowing for simultaneous sampling of four channels. The AD7654 is designed for high-speed applications, offering a throughput of 500 kSPS and internal error correction circuitry. Despite being marked as obsolete, it remains a significant component in various industrial and communication systems due to its robust specifications and features.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 16-bit | |||
| Throughput | 500 kSPS | |||
| Analog Input Voltage Range | 0 | 5 | V | |
| Integral Nonlinearity (INL) | 3.5 LSB | |||
| Power Supply Voltage | 4.75 | 5 | 5.25 | V |
| Power Dissipation (500 kSPS) | 120 | 135 | mW | |
| Power Dissipation (10 kSPS) | 2.6 | mW | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Package Type | 48-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: The device offers a high throughput of 500 kSPS with a charge redistribution SAR ADC architecture.
- Superior INL and No Missing Codes: It has a maximum integral nonlinearity of 3.5 LSB with no missing 16-bit codes.
- Single-Supply Operation: Operates from a single 5 V power 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 motor control applications due to its simultaneous sampling capability.
- 3-Phase Power Control: Used in three-phase power control systems for precise measurement and control.
- 4-Channel Data Acquisition: Ideal for multi-channel data acquisition systems requiring high-speed and accurate conversions.
- Uninterrupted Power Supplies: Employed in UPS systems to ensure reliable and precise monitoring of power parameters.
- Communications: Used in various communication systems where high-speed and accurate analog-to-digital conversion is necessary.
Q & A
- What is the resolution of the AD7654ADC?
The AD7654 is a 16-bit analog-to-digital converter.
- What is the maximum throughput of the AD7654?
The maximum throughput is 500 kSPS.
- What is the operating voltage range of the AD7654?
The device operates from a single 5 V power supply.
- What is the integral nonlinearity (INL) of the AD7654?
The maximum INL is 3.5 LSB.
- Does the AD7654 support simultaneous sampling?
- What types of interfaces does the AD7654 support?
- What is the typical power dissipation of the AD7654 at 500 kSPS?
- What is the operating temperature range of the AD7654?
- What package types are available for the AD7654?
- Is the AD7654 still in production?
