AD9245BCPZ-65

Overview

The AD9245BCPZ-65 is a monolithic, single-channel, 14-bit analog-to-digital converter (ADC) from Analog Devices Inc. It operates at a maximum sampling rate of 65 MSPS with a single 3 V supply (2.7 V to 3.6 V). The device utilizes a multistage differential pipelined architecture with output error correction logic to guarantee no missing codes across the full operating temperature range. Key electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 73.1 dBc and a Spurious-Free Dynamic Range (SFDR) of 83.0 dBc at Nyquist. Power consumption is 300 mW at the maximum sampling rate. The component features a parallel digital interface and is housed in a 32-lead LFCSP package.

Feature Summary

• Multistage differential pipelined architecture with output error correction logic for guaranteed 14-bit accuracy
• Integrated high-performance sample-and-hold amplifier (SHA) supporting differential or single-ended inputs
• On-chip voltage reference and clock duty-cycle stabilizer (DCS)
• Flexible analog input configuration with selectable offset binary or two's complement data formats

Applications

• Medical imaging equipment
• IF sampling in communications receivers
• Battery-powered instruments
• Hand-held scopemeters
• Power-sensitive military applications

Procurement Notes

Verify the specific suffix -65 indicates the 65 MSPS speed grade when sourcing. Confirm the package type matches the required PCB footprint. Check RoHS compliance status against current manufacturing revisions. Ensure the ordering quantity aligns with distributor availability for this specific speed bin.

Selection Notes

Select the AD9245BCPZ-65 when a 65 MSPS sampling rate is required for 14-bit resolution. Compare power dissipation requirements against the 300 mW specification at maximum speed. Evaluate if the internal reference meets system noise budgets or if an external reference is necessary for higher precision. Consider the parallel interface complexity versus serial alternatives if pin count is constrained.

Part Context

This component belongs to the AD9245 family, which includes variants with different maximum sampling rates such as 20 MSPS, 40 MSPS, and 80 MSPS. All variants share the same 14-bit resolution, 3 V supply operation, and 32-lead LFCSP packaging. The -65 suffix specifically denotes the 65 MSPS performance tier within this product line.

Replacement Considerations

The AD9245BCPZ-65 is pin-compatible with the AD9215, AD9235, and AD9236. Designers migrating from these devices should verify that the target application does not require the lower resolution or different sampling characteristics of the legacy parts.