Overview
The AD9645BCPZ-80 is a dual, 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for low cost, low power, small size, and ease of use, making it ideal for applications where high dynamic performance and minimal power consumption are critical. The AD9645 operates at conversion rates of up to 125 MSPS and features an on-chip sample-and-hold circuit. It requires a single 1.8 V power supply and supports LVPECL-, CMOS-, and LVDS-compatible sample rate clocks. The ADC is optimized for outstanding dynamic performance and low power, with no external reference or driver components required for many applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14-bit | |
| Conversion Rate | Up to 125 MSPS | |
| Supply Voltage | 1.8 V | V |
| Power Consumption (per channel at 125 MSPS) | 122 mW | mW |
| Signal-to-Noise Ratio (SNR) at 70 MHz | 74 dBFS | dBFS |
| Spurious Free Dynamic Range (SFDR) at 70 MHz | 91 dBc | dBc |
| Differential Nonlinearity (DNL) | ±0.65 LSB (typical) | LSB |
| Integral Nonlinearity (INL) | ±1.5 LSB (typical) | LSB |
| Analog Input Voltage Range | 2 V p-p differential | V |
| Operating Temperature Range | −40°C to +105°C | °C |
| Package Type | 32-lead LFCSP |
Key Features
- Low power operation: 122 mW per channel at 125 MSPS with scalable power options.
- High dynamic performance: SNR = 74 dBFS (to Nyquist); SFDR = 91 dBc at 70 MHz.
- Serial LVDS (ANSI-644, default) and low power, reduced range option (similar to IEEE 1596.3).
- 650 MHz full power analog bandwidth.
- 2 V p-p input voltage range.
- Serial port control for programmable features.
- Full chip and individual channel power-down modes.
- Flexible bit orientation and built-in/custom digital test pattern generation.
- Programmable output clock and data alignment.
- Standby mode and AEC-Q100 qualified for automotive applications.
Applications
The AD9645BCPZ-80 is suitable for a variety of applications where high-speed, low-power analog-to-digital conversion is required. These include:
- Automotive systems: AEC-Q100 qualified, making it suitable for automotive applications.
- Communications: High-speed data conversion for wireless and wired communication systems.
- Healthcare: Medical imaging and diagnostic equipment.
- Instrumentation and Measurement: High-speed data acquisition systems.
- Industrial Automation: Control and monitoring systems requiring precise and fast data conversion.
- Aerospace/Defense: High-performance data conversion in military and aerospace applications.
Q & A
- What is the resolution and conversion rate of the AD9645BCPZ-80?
The AD9645BCPZ-80 is a 14-bit ADC with a conversion rate of up to 125 MSPS.
- What is the power supply requirement for the AD9645BCPZ-80?
The device requires a single 1.8 V power supply.
- What are the key dynamic performance metrics of the AD9645BCPZ-80?
The device has an SNR of 74 dBFS and an SFDR of 91 dBc at 70 MHz.
- Does the AD9645BCPZ-80 require external reference or driver components?
No external reference or driver components are required for many applications.
- What is the analog input voltage range of the AD9645BCPZ-80?
The analog input voltage range is 2 V p-p differential.
- What are the power-down modes available for the AD9645BCPZ-80?
The device supports full chip and individual channel power-down modes.
- Is the AD9645BCPZ-80 qualified for automotive applications?
Yes, it is AEC-Q100 qualified for automotive applications.
- What is the operating temperature range of the AD9645BCPZ-80?
The operating temperature range is −40°C to +105°C.
- What package type is the AD9645BCPZ-80 available in?
The device is available in a 32-lead LFCSP package.
- Does the AD9645BCPZ-80 support programmable features?
Yes, it supports programmable output clock and data alignment, as well as digital test pattern generation via the serial port interface (SPI).
