Analog Devices Inc. AD9432BSVZ-105

Overview

AD9432BSVZ-105 from Analog Devices is a 12-bit, 105 MSPS monolithic pipeline analog-to-digital converter with on-chip track-and-hold, 500 MHz analog bandwidth, 2.0 V p-p differential input range, and 3.3 V CMOS/TTL-compatible digital outputs. It operates from a single 5.0 V analog supply and supports differential or single-ended encode clocking, targeting high-speed communications receivers and zero-IF baseband sampling.

For engineers reviewing the AD9432BSVZ-105 datasheet, AD9432BSVZ-105 pinout, AD9432BSVZ-105 application, or AD9432BSVZ-105 equivalent, key selection criteria include its 67 dB SNR at 49 MHz input under 105 MSPS operation, ±0.25 LSB typical DNL, on-chip 2.5 V reference (VREFOUT), and TQFP_EP package thermal performance with θJA = 16°C/W at 1.0 m/s airflow.

Technical Context

The AD9432BSVZ-105 implements a switched-capacitor pipeline architecture with calibrated DNL correction at final test, delivering flat dynamic performance up to near-Nyquist frequencies. Its analog input stage features a self-biased differential buffer with 3.0 V common-mode voltage and 2–4 kΩ input resistance.

Digital outputs use twos complement coding, latched with 10-cycle pipeline latency, and are driven from a dedicated 3.3 V (2.7–3.6 V) digital supply (VDD). The encode interface accepts TTL/CMOS-level differential or single-ended clocks, with aperture jitter specified at 0.25 ps rms and aperture delay of 2.0 ns.

Key Specifications

Pinout & Package

AD9432BSVZ-105 is housed in a 52-lead thin quad flat package with exposed thermal pad (TQFP_EP, SV-52-2), optimized for industrial temperature range (−40°C to +85°C) and low thermal resistance (θJC = 2°C/W, θJA = 16°C/W at 1.0 m/s airflow).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9432BSVZ-105, AD9433BSTZ-105 trades analog bandwidth and SNR for lower power and supply voltage, while ADS5463IPFP provides higher resolution and speed at significantly increased power, layout, and supply complexity-making AD9432BSVZ-105 optimal for balanced 105 MSPS, 12-bit, industrial-temperature signal acquisition.

Availability

AD9432BSVZ-105 is available at Aetrix Electronics and suitable for wireless infrastructure, broadcast video, and test equipment applications requiring stable component supply, long-term lifecycle support, and industrial temperature grade performance.

Supply support for AD9432BSVZ-105 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 is a global leader in high-performance analog, mixed-signal, and DSP technologies, serving precision instrumentation, communications, and industrial markets since 1965.

The AD9432 product line delivers monolithic, high-speed pipeline ADCs optimized for ease of use in communications receivers and video digitization, featuring integrated references, track-and-hold, and flexible digital interfacing.

FAQ

What is the maximum analog input frequency supported by the AD9432BSVZ-105 while maintaining specified SNR?

The AD9432BSVZ-105 maintains 67 dB SNR up to 49 MHz analog input frequency at 105 MSPS, with 66.1 dB SNR at 70 MHz. Its 500 MHz analog bandwidth ensures minimal amplitude roll-off for IF sampling applications below Nyquist (52.5 MHz), making it suitable for 70 MHz IF digitization with appropriate anti-alias filtering. Performance beyond 70 MHz is characterized but not guaranteed per datasheet specifications.

Does the AD9432BSVZ-105 require an external reference, or can it operate with its internal reference?

The AD9432BSVZ-105 can operate using its internal 2.5 V reference (VREFOUT) by connecting Pin 45 (VREFIN) to Pin 46 (VREFOUT) and bypassing VREFIN with a 0.1 µF capacitor to ground. This configuration eliminates the need for an external reference IC in most applications, though an external 2.5 V reference may be used for tighter tolerance or temperature stability requirements.

What is the pipeline latency of the AD9432BSVZ-105, and how does it affect system timing?

The AD9432BSVZ-105 has a fixed 10-cycle pipeline latency from encode edge to valid D11–D0 output. This means data sampled on the Nth encode edge appears on the bus at cycle N+10. The OR (out-of-range) flag is synchronized to this same latency, enabling deterministic overflow detection. System designers must account for this delay in FPGA-based digital signal processing pipelines.

Can the AD9432BSVZ-105 accept single-ended analog inputs, or is differential operation mandatory?

The AD9432BSVZ-105 analog input is a differential buffer optimized for differential drive; datasheet specifications (e.g., SNR, SFDR, bandwidth) are guaranteed only with differential input. Single-ended drive degrades dynamic performance-particularly harmonic distortion-and is not recommended for production systems requiring datasheet-grade performance.

What thermal management considerations apply to the AD9432BSVZ-105 in its TQFP_EP package?

The AD9432BSVZ-105 in TQFP_EP (SV-52-2) requires soldering the exposed thermal pad to a solid PCB ground plane to achieve θJA = 16°C/W at 1.0 m/s airflow. Without pad connection, thermal resistance rises significantly, risking junction temperature exceedance above 150°C at full 850 mW dissipation. Thermal vias under the pad are strongly recommended for high-reliability industrial deployments.