Overview
The AD7654ACPZ 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. It is designed for high-speed applications, offering a throughput rate of up to 500 kSPS and internal error correction circuitry. The AD7654ACPZ is packaged in a 48-lead low profile quad flat package (LQFP) or a 48-lead lead frame chip scale package (LFCSP), making it suitable for a variety of applications requiring precise and fast analog-to-digital conversion.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Resolution | - | - | 16 Bits | - |
| Analog Input Voltage Range | 0 | - | 5 V | V |
| Throughput Rate (Normal Mode) | - | - | 500 kSPS | - |
| Throughput Rate (Impulse Mode) | - | - | 444 kSPS | - |
| Integral Linearity Error | -3.5 LSB | - | +3.5 LSB | - |
| Power Supply Voltage | - | 5 V | - | V |
| Power Dissipation (Typical) | - | 120 mW | - | mW |
| Operating Temperature Range | -40°C | - | +85°C | °C |
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 rate of up to 500 kSPS, making it suitable for high-speed applications.
- Superior INL and No Missing Codes: The AD7654 has a maximum integral nonlinearity of 3.5 LSB with no missing 16-bit codes, ensuring high accuracy.
- Single-Supply Operation: The device operates from a single 5 V power supply, simplifying system design.
- Serial or Parallel Interface: It supports both serial and parallel system interface ports, including SPI, QSPI, MICROWIRE, and DSP compatible 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: Can be used in data acquisition systems that require simultaneous sampling of multiple channels.
- Uninterrupted Power Supplies: Useful in UPS systems where precise and fast analog-to-digital conversion is necessary.
- Communications: Applicable in various communication systems that require high-speed and accurate ADCs.
Q & A
- What is the resolution of the AD7654ACPZ?
The AD7654ACPZ has a resolution of 16 bits.
- What is the typical throughput rate of the AD7654ACPZ?
The typical throughput rate is up to 500 kSPS in normal mode and 444 kSPS in impulse mode.
- What is the operating voltage range of the AD7654ACPZ?
The device operates from a single 5 V power supply.
- What are the package options for the AD7654ACPZ?
The AD7654ACPZ is available in 48-lead low profile quad flat package (LQFP) and 48-lead lead frame chip scale package (LFCSP).
- What is the typical power dissipation of the AD7654ACPZ?
The typical power dissipation is 120 mW.
- Does the AD7654ACPZ support simultaneous sampling?
Yes, the AD7654ACPZ features two sample-and-hold circuits that allow simultaneous sampling of four channels.
- What are the common applications of the AD7654ACPZ?
Common applications include AC motor control, 3-phase power control, 4-channel data acquisition, uninterrupted power supplies, and communications.
- What is the integral linearity error of the AD7654ACPZ?
The integral linearity error is ±3.5 LSB with no missing 16-bit codes.
- Does the AD7654ACPZ have internal error correction circuitry?
Yes, the AD7654ACPZ includes internal error correction circuitry.
- What interface options are available for the AD7654ACPZ?
The device supports both serial and parallel system interface ports, including SPI, QSPI, MICROWIRE, and DSP compatible interfaces.
