Analog Devices Inc. AD9236BCP-80

Overview

AD9236BCP-80 from Analog Devices is a monolithic 12-bit, 80 MSPS analog-to-digital converter (ADC) with differential input, on-chip sample-and-hold amplifier, and integrated voltage reference. It operates from a single 3 V supply (2.7 V to 3.6 V), delivers 70.4 dBc SNR at 40 MHz input, 87.8 dBc SFDR, ±0.4 LSB DNL, and consumes 366 mW - optimized for IF sampling in communications receivers and medical ultrasound front ends.

For engineers reviewing the AD9236BCP-80 datasheet, AD9236BCP-80 pinout, AD9236BCP-80 application, or AD9236BCP-80 equivalent, this page provides verified technical context, real-world timing and noise performance data, package-specific pin mapping, and validated alternative options for high-speed data acquisition systems requiring stable 12-bit resolution at Nyquist frequencies up to 100 MHz.

Technical Context

The AD9236BCP-80 employs a multistage differential pipelined architecture with output error correction logic to guarantee 12-bit accuracy and no missing codes over −40°C to +85°C. Its patented differential SHA supports 500 MHz analog input bandwidth and configurable common-mode range, enabling both differential and single-ended operation.

It features a clock duty cycle stabilizer (DCS) that maintains SNR/SFDR across wide duty cycle variations, and an out-of-range (OTR) flag synchronized to the pipeline latency of 7 clock cycles. Digital outputs are CMOS-compatible with separate DRVDD (2.25 V to 3.6 V) for interfacing to 2.5 V or 3.3 V logic families.

Key Specifications

Pinout & Package

The AD9236BCP-80 is packaged in a 32-lead LFCSP (CP-32-7) with exposed paddle, specified for −40°C to +85°C operation. Thermal resistance θJC = 32.7°C/W enables efficient heat dissipation when the exposed paddle is soldered to the PCB ground plane.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed ADC applications.

Compared with AD9236BCP-80, AD9235BCP-80 offers identical footprint and timing but sacrifices 1.4 dB SNR and increases power by 34 mW, while ADS5463IPFP delivers 6.25× higher throughput at 5× power and zero pin compatibility - making AD9236BCP-80 the optimal balance of speed, noise, power, and integration for 80 MSPS IF digitization.

Availability

AD9236BCP-80 is available at Aetrix Electronics and suitable for high-end medical imaging equipment, IF sampling in communications receivers, and battery-powered instruments requiring stable component supply across long production lifecycles.

Supply support for AD9236BCP-80 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with R&D and manufacturing facilities worldwide.

The AD9236 belongs to Analog Devices' high-speed data converter product line, designed specifically for demanding communications, medical imaging, and instrumentation applications requiring precision, low power, and robust thermal performance in compact packages.

FAQ

What is the maximum analog input frequency supported by the AD9236BCP-80 while maintaining guaranteed SNR performance?

The AD9236BCP-80 guarantees 70.4 dBc SNR at 40 MHz input frequency and 67.8 dBc SNR at 70 MHz input frequency across the full industrial temperature range. Its analog input bandwidth is rated at 500 MHz, but usable SNR degrades above ~70 MHz due to aperture jitter and front-end roll-off; for production designs targeting >65 dBc SNR, keep fundamental input below 70 MHz.

Does the AD9236BCP-80 require an external reference, or can it operate with its internal reference?

The AD9236BCP-80 supports both internal and external reference configurations. Its on-chip reference generates either 1.0 V or 0.5 V depending on the SENSE pin state, eliminating external components for many applications. When higher accuracy or temperature stability is required, an external reference can be applied to the REFT/REFB pins - the AD9236BCP-80 will automatically disable the internal reference upon detection.

How does the duty cycle stabilizer (DCS) in the AD9236BCP-80 affect system clocking design?

The DCS in the AD9236BCP-80 actively corrects clock duty cycle deviations between 30% and 70%, preserving 70.4 dBc SNR and 87.8 dBc SFDR without requiring external clock conditioning. This allows use of simple crystal oscillators or FPGA-generated clocks with poor duty cycle control, reducing bill-of-materials and layout complexity compared to ADCs requiring 45–55% duty cycle tolerance.

What is the pipeline latency of the AD9236BCP-80, and how does it impact system synchronization?

The AD9236BCP-80 has a fixed pipeline latency of 7 clock cycles from CLK rising edge to valid D0–D11 output. This deterministic delay enables precise timing alignment in synchronous systems such as digital beamformers or real-time spectrum analyzers. The OTR flag also aligns to this latency, allowing accurate overflow detection without additional delay compensation logic.

Can the AD9236BCP-80 interface directly to a 1.8 V FPGA I/O bank?

No - the AD9236BCP-80 digital outputs are CMOS-level and require DRVDD between 2.25 V and 3.6 V; minimum high-level output voltage is 2.45 V (at IOH = 0.5 mA) when DRVDD = 2.5 V. Direct connection to 1.8 V FPGA banks would violate input voltage thresholds and risk damage. Level-shifting circuitry or a compatible 2.5 V/3.3 V FPGA I/O bank is required for safe interfacing.