Overview
The AD9235BCPZRL7-20, 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 high-accuracy data conversion. This ADC operates on a single 3 V supply and is available in a 32-lead Lead Frame Chip Scale Package (LFCSP). It features a multistage differential pipelined architecture with output error correction logic, ensuring 12-bit accuracy at sampling rates of up to 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 | Unit |
|---|---|---|
| Number of Bits | 12 | |
| Sampling Rate | 20/40/65 | MSPS |
| Supply Voltage, Analog | 2.7 V to 3.6 V | V |
| Supply Voltage, Digital | 2.25 V to 3.6 V | V |
| Number of Analog Input Channels | 1 | |
| Signal to Noise Ratio (SNR) | 70 dBc to Nyquist at 65 MSPS | dBc |
| Spurious Free Dynamic Range (SFDR) | 85 dBc to Nyquist at 65 MSPS | dBc |
| Differential Nonlinearity (DNL) | ±0.4 LSB | LSB |
| Integral Nonlinearity (INL) | 0.8 LSB | LSB |
| Power Consumption | 300 mW at 65 MSPS | mW |
| Package Type | 32-Lead LFCSP | |
| Operating Temperature Range | -40°C to +85°C | °C |
Key Features
- Single +3 V supply operation (2.7 V to 3.6 V)
- High performance sample-and-hold amplifier (SHA) and on-chip voltage reference
- Differential input with 500 MHz bandwidth, configurable for single-ended or differential operation
- Low power consumption: 300 mW at 65 MSPS
- Offset binary or twos complement data format
- Clock duty cycle stabilizer to maintain ADC performance over a wide range of clock pulse widths
- Out-of-range (OTR) signal to indicate overflow conditions
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 AD9235BCPZRL7-20?
The AD9235BCPZRL7-20 can operate at sampling rates of 20, 40, or 65 MSPS.
- What is the supply voltage range for the AD9235BCPZRL7-20?
The device operates on a single 3 V supply with a voltage range of 2.7 V to 3.6 V for the analog circuitry and 2.25 V to 3.6 V for the digital circuitry.
- What is the signal to noise ratio (SNR) of the AD9235BCPZRL7-20?
The SNR is 70 dBc to Nyquist at 65 MSPS.
- What is the power consumption of the AD9235BCPZRL7-20 at 65 MSPS?
The power consumption is 300 mW at 65 MSPS.
- What types of input configurations are supported by the AD9235BCPZRL7-20?
The device supports both single-ended and differential input configurations.
- What is the operating temperature range of the AD9235BCPZRL7-20?
The device operates over the industrial temperature range of -40°C to +85°C.
- What is the package type of the AD9235BCPZRL7-20?
The device is available in a 32-lead Lead Frame Chip Scale Package (LFCSP).
- Does the AD9235BCPZRL7-20 have an on-chip voltage reference?
Yes, the device features an on-chip voltage reference.
- What is the purpose of the clock duty cycle stabilizer in the AD9235BCPZRL7-20?
The clock duty cycle stabilizer maintains the overall ADC performance over a wide range of clock pulse widths.
- How does the AD9235BCPZRL7-20 indicate overflow conditions?
The device includes an out-of-range (OTR) signal to indicate when the input signal is beyond the selected input range.
