Overview
The AD9257BCPZ-65 is an octal, 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 dynamic performance and compact packaging are critical. The AD9257 operates at conversion rates of up to 65 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 does not require external reference or driver components for many applications, enhancing its simplicity and cost-effectiveness.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14-bit | |
| Conversion Rate | Up to 65 MSPS | |
| Power Consumption per Channel | 55 mW at 65 MSPS | |
| Signal-to-Noise Ratio (SNR) | 75.5 dB (to Nyquist) | |
| Spurious-Free Dynamic Range (SFDR) | 91.6 dBc (to Nyquist) | |
| Differential Nonlinearity (DNL) | ±0.6 LSB (typical) | |
| Integral Nonlinearity (INL) | ±1.1 LSB (typical) | |
| Input Voltage Range | 2 V p-p | |
| Supply Voltage | 1.8 V | |
| Package Type | 64-Lead LFCSP (9mm x 9mm w/ EP) | |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Low power consumption: 55 mW per channel at 65 MSPS with scalable power options
- Serial LVDS (ANSI-644, default) and low power, reduced signal option (similar to IEEE 1596.3)
- Data and frame clock outputs (DCO and FCO)
- 650 MHz full power analog bandwidth
- Programmable clock and data alignment
- Programmable output resolution
- Full chip and individual channel power-down modes
- Built-in and custom digital test pattern generation
- Flexible bit orientation
- Serial port control via SPI interface
Applications
- Medical imaging and nondestructive ultrasound
- Portable ultrasound and digital beam-forming systems
- Quadrature and diversity radio receivers
- Optical networking
- Test equipment
Q & A
- What is the resolution and conversion rate of the AD9257BCPZ-65?
The AD9257BCPZ-65 is a 14-bit ADC with a conversion rate of up to 65 MSPS.
- What is the power consumption per channel at 65 MSPS?
The power consumption per channel is 55 mW at 65 MSPS.
- What type of interface does the AD9257BCPZ-65 use for serial data output?
The AD9257BCPZ-65 uses Serial LVDS (ANSI-644) for serial data output.
- Does the AD9257BCPZ-65 require external reference or driver components?
No, the AD9257BCPZ-65 does not require external reference or driver components for many applications.
- What is the input voltage range of the AD9257BCPZ-65?
The input voltage range is 2 V p-p.
- What is the operating temperature range of the AD9257BCPZ-65?
The operating temperature range is -40°C to +85°C.
- What types of applications is the AD9257BCPZ-65 suited for?
The AD9257BCPZ-65 is suited for medical imaging, portable ultrasound, quadrature and diversity radio receivers, optical networking, and test equipment.
- Does the AD9257BCPZ-65 support individual channel power-down?
Yes, the AD9257BCPZ-65 supports individual channel power-down, consuming less than 2 mW when all channels are disabled.
- What type of package does the AD9257BCPZ-65 come in?
The AD9257BCPZ-65 comes in a 64-Lead LFCSP (9mm x 9mm w/ EP) package.
- Is the AD9257BCPZ-65 RoHS-compliant?
Yes, the AD9257BCPZ-65 is RoHS-compliant.
