Overview
The AD9645BCPZ-125 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 packaged in a 32-lead LFCSP (5mm x 5mm x 0.75mm) and is specified over the automotive temperature range of −40°C to +105°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14-bit | |
| Conversion Rate | Up to 125 MSPS | |
| Power Supply | 1.8 V | |
| Power Consumption | 122 mW per channel at 125 MSPS | |
| Signal-to-Noise Ratio (SNR) | 74 dBFS (to Nyquist) | |
| Spurious Free Dynamic Range (SFDR) | 91 dBc at 70 MHz | |
| Differential Nonlinearity (DNL) | ±0.65 LSB (typical) | |
| Integral Nonlinearity (INL) | ±1.5 LSB (typical) | |
| Analog Input Voltage Range | 2 V p-p differential | |
| Package Type | 32-Lead LFCSP (5mm x 5mm x 0.75mm) | |
| Operating Temperature Range | −40°C to +105°C |
Key Features
- 1.8 V supply operation
- Low power: 122 mW per channel at 125 MSPS with scalable power options
- 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
- Full chip and individual channel power-down modes
- Flexible bit orientation
- Built-in and custom digital test pattern generation
- Clock divider
- Programmable output clock and data alignment
- Programmable output resolution
- Standby mode
- AEC-Q100 qualified for automotive applications
Applications
- Battery-powered instruments
- Handheld scope meters
- Portable medical imaging and ultrasound
- Radar/LIDAR systems
Q & A
- What is the resolution of the AD9645BCPZ-125?
The AD9645BCPZ-125 has a resolution of 14 bits.
- What is the maximum conversion rate of the AD9645BCPZ-125?
The maximum conversion rate is up to 125 MSPS.
- What is the power supply requirement for the AD9645BCPZ-125?
The device requires a single 1.8 V power supply.
- How much power does the AD9645BCPZ-125 consume at 125 MSPS?
The device consumes 122 mW per channel at 125 MSPS.
- What is the signal-to-noise ratio (SNR) of the AD9645BCPZ-125?
The SNR is 74 dBFS (to Nyquist).
- What is the spurious free dynamic range (SFDR) of the AD9645BCPZ-125 at 70 MHz?
The SFDR is 91 dBc at 70 MHz.
- What is the differential nonlinearity (DNL) and integral nonlinearity (INL) of the AD9645BCPZ-125?
The DNL is ±0.65 LSB (typical) and the INL is ±1.5 LSB (typical).
- What is the analog input voltage range of the AD9645BCPZ-125?
The analog input voltage range is 2 V p-p differential.
- In what package is the AD9645BCPZ-125 available?
The device is available in a 32-Lead LFCSP (5mm x 5mm x 0.75mm) package.
- What is the operating temperature range of the AD9645BCPZ-125?
The operating temperature range is −40°C to +105°C.
