AD9233BCPZ-80

Overview

The AD9233BCPZ-80 is a monolithic, single-supply 12-bit analog-to-digital converter (ADC) from Analog Devices. It operates with an analog supply of 1.7 V to 1.9 V and a digital output driver supply of 1.7 V to 3.6 V. The device features a maximum sampling rate of 80 MSPS, utilizing a multistage differential pipeline architecture with output error correction logic. Key electrical specifications include a Signal-to-Noise Ratio (SNR) of 69.5 dBc at 70 MHz input, a Spurious-Free Dynamic Range (SFDR) of 85 dBc, and a Differential Nonlinearity (DNL) of ±0.15 LSB. It consumes 248 mW to 320 mW depending on the digital supply voltage.

Feature Summary

• Features a high-performance sample-and-hold amplifier (SHA) with a 650 MHz bandwidth for accurate signal acquisition.
• Includes an on-chip voltage reference and supports flexible analog input ranges from 1 V p-p to 2 V p-p.
• Provides programmable data formatting options including offset binary, Gray code, or two's complement.
• Integrates a clock duty cycle stabilizer (DCS) to maintain performance across wide variations in clock pulse widths.

Applications

• Ultrasound equipment
• IF sampling in communications receivers
• Battery-powered instruments

Procurement Notes

Verify the specific speed grade suffix (-80) against the design requirements to ensure the 80 MSPS sampling rate matches the system constraints. Confirm that the 48-lead LFCSP package dimensions align with the PCB footprint. Check the serial port interface configuration settings to ensure compatibility with the host controller's SPI protocol.

Selection Notes

Select this component when a 12-bit resolution and 80 MSPS throughput are sufficient for the application. Consider the AD9233BCPZ-105 or AD9233BCPZ-125 if higher sampling rates are required, as they share pinouts. Ensure the design accommodates the separate analog and digital power supplies for optimal noise isolation.

Part Context

The AD9233BCPZ-80 belongs to the AD9233 family of 1.8 V, 12-bit ADCs. This family includes variants with different maximum sampling speeds, specifically the -105 and -125 grades. All variants share the same 48-lead LFCSP package and functional block diagram, allowing for straightforward migration between speed grades within the same product line.

Replacement Considerations

Pin-compatible alternatives within the same family include the AD9233BCPZ-105 and AD9233BCPZ-125. These parts offer higher sampling rates but maintain identical pinouts and functionality.