Analog Devices Inc. AD9051BRSZ-2V

Overview

AD9051BRSZ-2V from Analog Devices is a 10-bit, 60 MSPS monolithic analog-to-digital converter with integrated track-and-hold and 2.5 V bandgap reference. It operates on a single 5 V supply, supports 5 V/3 V logic I/O, features selectable 50 MHz or 130 MHz input bandwidth, and delivers 9.3 ENOB at 10.3 MHz input-used in medical imaging front-ends requiring high-speed digitization of ultrasound or MRI signals.

For engineers reviewing the AD9051BRSZ-2V datasheet, AD9051BRSZ-2V pinout, AD9051BRSZ-2V application, or AD9051BRSZ-2V equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional and packaging differences.

Technical Context

The AD9051BRSZ-2V uses a two-step subranging architecture with digital error correction to guarantee true 10-bit accuracy. Its differential analog input is internally biased at 2.5 V, enabling direct single-ended or differential drive without external biasing networks.

It features five-pipeline-stage latched outputs synchronized to the rising edge of the ENCODE signal, with propagation delay specified across temperature and supply voltage. The BWSEL pin selects nominal analog input bandwidth (50 MHz when tied to VD, 130 MHz when NC), directly affecting small-signal gain flatness up to 21.7 MHz.

Key Specifications

Pinout & Package

AD9051BRSZ-2V is housed in a 28-lead Shrink Small Outline Package (SSOP), JEDEC MO-150-AH compliant, with 0.65 mm pitch and 10.2 mm × 5.3 mm body size-designed for automated SMT assembly and industrial temperature operation (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9051BRSZ-2V, the AD9051BRSZ offers identical functionality at lower cost but relaxed reference accuracy, while the AD9220ASTZ trades speed for resolution and requires board-level changes due to non-compatible pin assignment and missing BWSEL/OR functions.

Availability

AD9051BRSZ-2V is available at Aetrix Electronics and suitable for medical imaging systems, professional video equipment, and wireless infrastructure hardware requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for AD9051BRSZ-2V 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 design centers worldwide.

The AD9051 product line delivers monolithic, low-power, high-speed ADCs optimized for cost-sensitive, space-constrained applications in medical, video, and communications equipment-emphasizing integration, ease of use, and industrial temperature reliability.

FAQ

What is the reference voltage accuracy specification for AD9051BRSZ-2V?

The AD9051BRSZ-2V features a factory-trimmed internal 2.5 V bandgap reference with ±0.5% initial accuracy over temperature (–40°C to +85°C), as confirmed in the Ordering Guide and Electrical Specifications table. This tighter tolerance bin distinguishes it from the standard AD9051BRSZ and supports calibrated measurement systems where reference drift must be minimized. The VREFOUT pin (Pin 3) delivers this voltage with ≤10 ppm/°C drift and 500 µA drive capability.

Does AD9051BRSZ-2V support 3 V logic interfacing without level shifters?

Yes, AD9051BRSZ-2V supports direct 3 V logic interfacing: its digital outputs are CMOS with dedicated VDD pins (20 and 22) that accept 3 V supply, producing compatible 3 V logic swings. The ENCODE input is TTL-compatible (1.5 V threshold) and functions correctly with 3 V CMOS clocks. No external level shifters are needed-this is verified in the "Using the AD9051" section and confirmed by the 3 V System application note within the datasheet.

How does the BWSEL pin affect analog input performance in AD9051BRSZ-2V?

In AD9051BRSZ-2V, the BWSEL pin configures nominal analog input bandwidth: tied to VD (5 V) selects 50 MHz, while left unconnected selects 130 MHz. This selection alters small-signal gain flatness-TPC 4 shows ±0.5 dB variation up to 40 MHz in 50 MHz mode versus ±1.5 dB up to 80 MHz in 130 MHz mode. Bandwidth choice directly impacts harmonic distortion and SNR at high input frequencies, making BWSEL critical for IF versus baseband signal chain optimization.

What is the pipeline latency of AD9051BRSZ-2V, and how is it timed?

The AD9051BRSZ-2V has a fixed five-pipeline-stage latency: output data (D0–D9) appears one propagation delay (tPD) after the rising edge of the ENCODE signal, with total latency equal to five encode cycles. This is confirmed in the Timing Diagram (Figure 1) and Theory of Operation section. tPD varies with temperature and supply-e.g., 4.5 ns typical at 25°C with 5 V VDD-and must be accounted for in FPGA or ASIC timing closure for synchronous data capture.

Is AD9051BRSZ-2V pin-compatible with other AD9051 variants like AD9051BRSZ?

Yes, AD9051BRSZ-2V is fully pin-compatible with all AD9051BRSx variants-including AD9051BRSZ-in the 28-lead SSOP (RS-28) package. Pin functions, spacing, thermal pad configuration, and mechanical dimensions match exactly per the Outline Dimensions drawing (Figure 7). The "-2V" suffix denotes enhanced reference accuracy binning only; no physical or electrical pinout differences exist between these variants.