Overview
The AD7643BCPZRL is an 18-bit, 1.25 MSPS (mega-samples per second), charge redistribution Successive Approximation Register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single 2.5 V power supply and is known for its high speed and superior linearity. The AD7643BCPZRL features an internal reference with a typical drift of ±8 ppm/°C and an on-chip temperature sensor. It is available in a 48-lead Lead Frame Chip Scale Package (LFCSP) and is Pb-free, with operation specified from −40°C to +85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 18 | |
| Sampling Rate | 1.25 MSPS | |
| Number of Inputs | 1 | |
| Input Type | Differential | |
| Data Interface | SPI, Parallel, DSP | |
| Architecture | SAR | |
| Reference Type | Internal, External | |
| Voltage - Supply, Analog/Digital | 2.37 V ~ 2.63 V | |
| Package | 48-VFQFN Exposed Pad, CSP | |
| Operating Temperature | −40°C to +85°C |
Key Features
- Fast Throughput: The AD7643BCPZRL offers a high sampling rate of 1.25 MSPS, making it suitable for high-speed data acquisition applications.
- Superior Linearity: The device has no missing 18-bit codes, ensuring high accuracy and linearity in the conversion process.
- Internal Reference: It includes a 2.048 V internal reference with a typical drift of ±8 ppm/°C and an on-chip temperature sensor.
- Single-Supply Operation: The ADC operates from a single 2.5 V power supply, simplifying system design.
- No Latency: The device has no latency and can be used in asynchronous rate applications.
- Hardware Factory Calibration: The AD7643BCPZRL is hardware factory calibrated and tested to ensure both AC and DC parameters meet specifications.
Applications
- Medical Instruments: Suitable for high-precision medical devices requiring accurate data acquisition.
- High-Speed Data Acquisition: Ideal for applications that require fast and accurate conversion of analog signals to digital data.
- Digital Signal Processing: Used in various DSP applications where high-speed and high-resolution ADCs are necessary.
- Spectrum Analysis: Applicable in spectrum analysis due to its high linearity and accuracy.
- Instrumentation and Communications: Suitable for various instrumentation and communication systems requiring precise ADCs).
- Automated Test Equipment (ATE): Used in ATE systems for precise and high-speed data acquisition).
Q & A
- What is the sampling rate of the AD7643BCPZRL?
The sampling rate of the AD7643BCPZRL is 1.25 MSPS.
- What type of input does the AD7643BCPZRL support?
The AD7643BCPZRL supports differential inputs.
- What are the data interface options for the AD7643BCPZRL?
The data interface options include SPI, Parallel, and DSP.
- What is the architecture of the AD7643BCPZRL?
The architecture of the AD7643BCPZRL is Successive Approximation Register (SAR).
- Does the AD7643BCPZRL have an internal reference?
Yes, the AD7643BCPZRL has a 2.048 V internal reference.
- What is the operating temperature range of the AD7643BCPZRL?
The operating temperature range is from −40°C to +85°C.
- Is the AD7643BCPZRL Pb-free?
Yes, the AD7643BCPZRL is Pb-free.
- What package type is the AD7643BCPZRL available in?
The AD7643BCPZRL is available in a 48-VFQFN Exposed Pad, CSP package.
- Does the AD7643BCPZRL have any latency?
No, the AD7643BCPZRL has no latency and can be used in asynchronous rate applications.
- What are some common applications of the AD7643BCPZRL?
Common applications include medical instruments, high-speed data acquisition, digital signal processing, spectrum analysis, instrumentation, communications, and automated test equipment (ATE).
