Overview
The AD9235BRUZRL7-65, produced by Analog Devices Inc., is a high-performance, 12-bit analog-to-digital converter (ADC) designed for a variety of applications requiring high speed and accuracy. This ADC operates from a single 3 V power supply and is available in a 28-lead thin shrink small outline package (TSSOP) and a 32-lead chip scale package (LFCSP). It features a multistage differential pipelined architecture with output error correction logic, ensuring 12-bit accuracy at data rates of 20, 40, and 65 MSPS. The device is fabricated on an advanced CMOS process and is specified over the industrial temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Sampling Rate | 20/40/65 MSPS |
| Supply Voltage | 2.7 V to 3.6 V |
| Power Consumption | 300 mW at 65 MSPS |
| Signal to Noise Ratio (SNR) | 70 dBc to Nyquist at 65 MSPS |
| Spurious Free Dynamic Range (SFDR) | 85 dBc to Nyquist at 65 MSPS |
| Differential Nonlinearity (DNL) | ±0.4 LSB |
| Analog Input Bandwidth | 500 MHz |
| Package Type | 28-lead TSSOP, 32-lead LFCSP |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Single +3 V supply operation (2.7 V to 3.6 V)
- On-chip reference and sample-and-hold amplifier (SHA)
- Differential input with 500 MHz bandwidth, configurable for single-ended or differential operation
- Flexible analog input ranges: 1 Vp-p to 2 Vp-p
- Offset binary or twos complement data format
- Clock duty cycle stabilizer (DCS) for maintaining ADC performance over wide variations in clock duty cycle
- Out-of-range (OTR) signal for overflow indication
- Low power consumption: 300 mW at 65 MSPS
- Pinout compatible with AD9214-65 for easy upgrade from 10-bit to 12-bit at 65 MSPS
Applications
- Ultrasound equipment
- IF sampling in communications receivers
- Battery-powered instruments
- Hand-held scopemeters
- Low-cost digital oscilloscopes
Q & A
- What is the sampling rate of the AD9235BRUZRL7-65?
The AD9235BRUZRL7-65 can sample at rates of 20, 40, and 65 MSPS.
- What is the power consumption of the AD9235BRUZRL7-65 at 65 MSPS?
The power consumption is 300 mW at 65 MSPS.
- What is the signal to noise ratio (SNR) of the AD9235BRUZRL7-65?
The SNR is 70 dBc to Nyquist at 65 MSPS.
- What are the available package types for the AD9235BRUZRL7-65?
The device is available in 28-lead TSSOP and 32-lead LFCSP packages.
- What is the operating temperature range of the AD9235BRUZRL7-65?
The operating temperature range is -40°C to +85°C.
- Can the AD9235BRUZRL7-65 be used in single-ended or differential input configurations?
- What is the purpose of the clock duty cycle stabilizer (DCS) in the AD9235BRUZRL7-65?
The DCS compensates for wide variations in the clock duty cycle to maintain excellent overall ADC performance.
- How does the out-of-range (OTR) signal function in the AD9235BRUZRL7-65?
The OTR signal indicates when the input signal is beyond the selected input range and can be used with the most significant bit to determine low or high overflow.
- Is the AD9235BRUZRL7-65 compatible with other ADC models for easy upgrades?
- What are some typical applications of the AD9235BRUZRL7-65?
The device is suitable for applications in communications, imaging, medical ultrasound, battery-powered instruments, hand-held scopemeters, and low-cost digital oscilloscopes.
