Analog Devices Inc. ADA4930-1YCPZ-R2

Overview

ADA4930-1YCPZ-R2 from Analog Devices is a single-channel, ultralow-noise, high-speed differential amplifier optimized as an ADC driver for 1.8 V, up to 14-bit converters operating from dc to 70 MHz. It delivers 1.2 nV/√Hz input voltage noise, −104 dBc HD2 at 10 MHz, 1.35 GHz −3 dB bandwidth (G = 1), and 3400 V/μs slew rate under 5 V supply. Its adjustable VOCM pin enables precise matching to ADC input common-mode requirements in data acquisition systems.

For engineers reviewing the ADA4930-1YCPZ-R2 datasheet, ADA4930-1YCPZ-R2 pinout, ADA4930-1YCPZ-R2 application, or ADA4930-1YCPZ-R2 equivalent, key selection criteria include differential output balance error (<55 dB), overdrive recovery time (1.5 ns), power-down functionality (12 ns turn-on), and operation across −40°C to +105°C with 3.3 V or 5 V supplies.

Technical Context

The ADA4930-1YCPZ-R2 employs a dual-feedback architecture: differential gain is set by external resistor networks (e.g., RF = RG = 301 Ω), while an internal common-mode feedback loop forces the output common-mode voltage (VO,cm) to track the VOCM input with 0.99–1.02 V/V gain and <31 mV offset. This enables accurate dc-level translation without external trimming.

It is fabricated in Analog Devices' SiGe complementary bipolar process, supporting low distortion (−75 dBc HD3 at 100 MHz) and wideband performance (0.1 dB flatness to 369 MHz at 5 V). The device operates with single-ended or differential inputs and supports both differential-to-differential and single-ended-to-differential conversion modes.

Key Specifications

Pinout & Package

The ADA4930-1YCPZ-R2 is housed in a Pb-free, 3 mm × 3 mm, 16-lead LFCSP package with exposed paddle (EPAD) for thermal management. The EPAD is not electrically connected and must be soldered to ground or a thermally conductive plane.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar differential amplifier applications.

Compared with ADA4927-1ACPZ-R7 and THS4561IRGET, the ADA4930-1YCPZ-R2 uniquely combines ultralow noise (1.2 nV/√Hz), integrated VOCM control, and sub-ns overdrive recovery-making it optimal for high-dynamic-range, wideband, power-gated data acquisition systems.

Availability

ADA4930-1YCPZ-R2 is available at Aetrix Electronics and suitable for high-speed data acquisition, IF sampling receivers, and digital oscilloscope front ends requiring stable component supply across −40°C to +105°C industrial environments.

Supply support for ADA4930-1YCPZ-R2 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.

The ADA4930 family was designed specifically to address the demanding noise, distortion, and bandwidth requirements of modern high-speed ADC drivers in test equipment, communications infrastructure, and medical imaging systems.

FAQ

What is the maximum recommended supply voltage for ADA4930-1YCPZ-R2?

The absolute maximum supply voltage for ADA4930-1YCPZ-R2 is 5.5 V. Operation is specified at 3.3 V or 5 V nominal supplies. Exceeding 5.5 V risks permanent damage per the Absolute Maximum Ratings table. For reliable long-term operation, Analog Devices recommends staying within the 3.3 V or 5 V specified ranges, with junction temperature maintained below 150°C using appropriate PCB thermal design.

Does ADA4930-1YCPZ-R2 support single-ended input configurations?

Yes, ADA4930-1YCPZ-R2 supports single-ended-to-differential conversion. With +IN grounded and signal applied to −IN (or vice versa), and proper external feedback resistors (e.g., RF = RG = 301 Ω), the device achieves unity gain differential output. The internal common-mode feedback loop automatically adjusts output balance and suppresses even-order harmonics, eliminating the need for external baluns or transformer coupling.

How does the VOCM pin function in ADA4930-1YCPZ-R2?

The VOCM pin on ADA4930-1YCPZ-R2 sets the average voltage of the +OUT and −OUT terminals. An internal feedback loop forces VO,cm = (V+OUT + V−OUT)/2 to match the applied VOCM voltage with 0.99–1.02 V/V gain. For example, applying 0.9 V to VOCM yields ~0.9 V common-mode output, enabling direct interfacing to 1.8 V ADC inputs. VOCM input range is 0.5 V to 2.3 V under 5 V supply.

What is the thermal resistance (θJA) of ADA4930-1YCPZ-R2?

The thermal resistance θJA of ADA4930-1YCPZ-R2 is 98°C/W, measured on a JEDEC-standard 4-layer PCB with the exposed paddle soldered to a thermal plane. This value assumes high thermal conductivity layout per JESD51-7. Effective θJA can be reduced via additional copper area, thermal vias under the EPAD, and airflow-critical given its 34 mA quiescent current and 150°C max junction temperature limit.

Can ADA4930-1YCPZ-R2 drive 200 Ω differential loads?

Yes, ADA4930-1YCPZ-R2 is characterized driving 200 Ω differential loads (RL,dm = 200 Ω). At 5 V supply, it maintains 0.1 dB gain flatness to 369 MHz and delivers −79 dBc HD2 at 70 MHz into this load. Linear output current is rated at 30 mA per output, sufficient for 2 V p-p differential swing (1 V p-p per side) into 200 Ω. Layout must minimize trace inductance and ensure symmetric routing to preserve balance.