Analog Devices Inc. ADA4930-1SCPZ-EPR7

Overview

ADA4930-1SCPZ-EPR7 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 (5 V supply), 1.35 GHz −3 dB bandwidth (G = 1), and 3400 V/μs slew rate. Its adjustable VOCM pin enables precise matching to ADC input common-mode requirements in data acquisition systems.

For engineers reviewing the ADA4930-1SCPZ-EPR7 datasheet, ADA4930-1SCPZ-EPR7 pinout, ADA4930-1SCPZ-EPR7 application, or ADA4930-1SCPZ-EPR7 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 compatibility with 3.3 V or 5 V single-supply operation in high-fidelity signal chains.

Technical Context

The ADA4930-1SCPZ-EPR7 employs a dual-feedback architecture: differential gain is set by external resistor networks (e.g., RF = RG = 301 Ω), while the internal common-mode feedback loop forces VO,cm = VOCM with 0.99–1.02 V/V gain and <31 mV offset. This enables precise dc-level translation without external trimming.

It is fabricated in Analog Devices' SiGe complementary bipolar process, supporting rail-to-rail output swing (0.11–1.74 V per output on 3.3 V; 0.18–3.38 V on 5 V) and maintaining 0.1 dB gain flatness to 380 MHz (5 V) or 369 MHz (3.3 V). Input common-mode range spans 0.3 V to 2.8 V on 5 V supply, accommodating wide-range sensor or DAC interfaces.

Key Specifications

Pinout & Package

The ADA4930-1SCPZ-EPR7 is housed in a Pb-free, 3 mm × 3 mm, 16-lead LFCSP package with exposed thermal pad (EPAD), optimized for low-inductance layout and thermal dissipation (θJA = 98°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADA4927-1ACPZ-R7 and THS4561IRGET, the ADA4930-1SCPZ-EPR7 uniquely combines ultralow noise, GHz-class bandwidth, and integrated VOCM control - making it the only option capable of preserving >12-bit ENOB at 70 MHz while simplifying PCB layout through single-supply operation and internal common-mode feedback.

Availability

ADA4930-1SCPZ-EPR7 is available at Aetrix Electronics and suitable for high-speed data acquisition, IF sampling receivers, and portable test equipment requiring stable component supply, guaranteed long-term availability, and traceable lot-level documentation.

Supply support for ADA4930-1SCPZ-EPR7 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 and ISO 9001-certified manufacturing.

The ADA4930 family targets high-fidelity signal chain front-ends - specifically engineered to drive next-generation low-voltage, high-resolution ADCs in communications, instrumentation, and medical imaging systems where noise, distortion, and timing fidelity are critical.

FAQ

What supply voltages does the ADA4930-1SCPZ-EPR7 support?

The ADA4930-1SCPZ-EPR7 operates from either a 3.3 V or 5 V single supply, with absolute maximum rating of 5.5 V. On 5 V supply, it delivers 3400 V/μs slew rate and −104 dBc HD2 at 10 MHz; on 3.3 V, it maintains 2877 V/μs slew rate and −98 dBc HD2 under identical conditions. Both configurations support the full −40°C to +105°C operating temperature range.

How does the VOCM pin function in the ADA4930-1SCPZ-EPR7?

The VOCM pin on the ADA4930-1SCPZ-EPR7 directly sets the output common-mode voltage (VO,cm) with 0.99–1.02 V/V gain and <31 mV offset. When a voltage is applied to VOCM (0.5–2.3 V on 5 V supply), the internal common-mode feedback loop forces VO,cm = VOCM, enabling precise alignment with 1.8 V ADC inputs without external resistive dividers or op-amp buffers.

What is the overdrive recovery time specification for the ADA4930-1SCPZ-EPR7?

The ADA4930-1SCPZ-EPR7 has a guaranteed overdrive recovery time of 1.5 ns, measured under G = 3, VIN,dm = 0.7 V p-p pulse conditions. This rapid recovery ensures minimal corruption of subsequent ADC samples following large transient events - critical in pulsed radar, time-of-flight, or burst-mode communication systems.

Does the ADA4930-1SCPZ-EPR7 support power-down mode, and how is it controlled?

Yes, the ADA4930-1SCPZ-EPR7 features a dedicated PD (power-down) pin (Pin 12). Driving PD >3 V (on 5 V supply) disables the amplifier, reducing quiescent current from 34 mA to 1.8 mA. Turn-on time is 12 ns and turn-off time is 1 μs, enabling dynamic power gating in low-duty-cycle applications without compromising signal integrity.

What package type and thermal characteristics apply to the ADA4930-1SCPZ-EPR7?

The ADA4930-1SCPZ-EPR7 uses a 3 mm × 3 mm, 16-lead LFCSP package with exposed thermal pad (EPAD), rated at θJA = 98°C/W on a JEDEC 4-layer board. The EPAD must be soldered to a thermally conductive ground or power plane to maintain junction temperature below 150°C - especially critical at full load with 34 mA quiescent current and high-frequency output drive.