Analog Devices Inc. ADA4850-2YCPZ-RL7

Overview

ADA4850-2YCPZ-RL7 from Analog Devices is a dual, high-speed, rail-to-rail output voltage-feedback op amp with ultralow power-down capability. It delivers 175 MHz −3 dB bandwidth, 220 V/µs slew rate, and 85 ns settling time to 0.1%, operating from 2.7 V to 6 V supply. Its 0.12% differential gain and 0.09° differential phase make it suitable for precision video signal conditioning in portable cameras and digital still cameras.

For engineers reviewing the ADA4850-2YCPZ-RL7 datasheet, ADA4850-2YCPZ-RL7 pinout, ADA4850-2YCPZ-RL7 application, or ADA4850-2YCPZ-RL7 equivalent, key selection criteria include power-down current (≤150 nA/amplifier), rail-to-rail output swing (within 80 mV of rails), input common-mode range extending 200 mV below negative rail, and 16-Lead LFCSP package compatibility with high-density PCB layouts.

Technical Context

The ADA4850-2YCPZ-RL7 employs a true single-supply voltage-feedback architecture with a high-slew-rate input stage enabling operation down to 2.7 V while maintaining 175 MHz bandwidth at +5 V supply. Its rail-to-rail output stage uses a common-emitter configuration capable of swinging within 80 mV of either rail under light loads.

Power-down functionality is implemented via dedicated PD1 and PD2 pins: driving either pin ≤0.6 V relative to −VS disables the corresponding amplifier, reducing quiescent current to ≤150 nA per channel. The device supports bipolar supplies up to ±5 V, provided the POWER DOWN pin voltage stays within (−VS + 6) V absolute maximum rating.

Key Specifications

Pinout & Package

ADA4850-2YCPZ-RL7 is housed in a 16-Lead Lead Frame Chip Scale Package (LFCSP), 3 mm × 3 mm body, 0.75 mm height, CP-16-21 package option, with exposed pad recommended for grounding to improve thermal performance and reduce noise.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual high-speed op amp applications.

Compared with ADA4851-2YCPZ-RL7, the ADA4850-2YCPZ-RL7 trades 45 MHz bandwidth for 3× lower active current and identical video linearity; versus LMH6629MA/NOPB, it offers integrated power-down and smaller footprint but requires LFCSP assembly capability.

Availability

ADA4850-2YCPZ-RL7 is available at Aetrix Electronics and suitable for portable multimedia players, video cameras, and digital still cameras requiring stable component supply with extended temperature support and RoHS-compliant packaging.

Supply support for ADA4850-2YCPZ-RL7 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 ADA4850 family was designed specifically for cost-sensitive, battery-powered video signal conditioning applications demanding rail-to-rail operation, ultralow power-down, and broadcast-grade video specifications.

FAQ

What is the maximum supply voltage for ADA4850-2YCPZ-RL7?

The ADA4850-2YCPZ-RL7 has an absolute maximum supply voltage rating of 12.6 V across +VS and −VS pins. However, its specified operational range is 2.7 V to 6 V. Exceeding 6 V may cause parametric shifts or reliability degradation, even if within absolute maximum limits. Always refer to Table 3 (Absolute Maximum Ratings) and derate accordingly for long-term reliability in industrial designs.

Does ADA4850-2YCPZ-RL7 support true single-supply operation with input signals below ground?

Yes. The ADA4850-2YCPZ-RL7 supports input common-mode voltages down to −0.2 V relative to −VS (e.g., −0.2 V when −VS = 0 V), enabling ground-referenced inputs in single-supply configurations. This allows direct interfacing with sensors or DACs that output near-zero voltages without level-shifting circuitry, preserving signal integrity in portable video systems.

How does the power-down function work on ADA4850-2YCPZ-RL7?

The ADA4850-2YCPZ-RL7 features two independent power-down pins: PD1 controls Amplifier 1, PD2 controls Amplifier 2. Driving either pin to ≤0.6 V relative to −VS disables the corresponding amplifier, reducing its quiescent current to ≤150 nA. Both pins must be actively driven - floating is prohibited. The turn-off time is 0.7 µs; turn-on time is 50 ns at +5 V supply.

What is the output voltage swing capability of ADA4850-2YCPZ-RL7 at 5 V supply?

At +5 V supply, the ADA4850-2YCPZ-RL7 delivers an output voltage swing of 0.14 V to 4.83 V (typical) under 1 kΩ load, meaning it swings within 140 mV of the negative rail and 170 mV of the positive rail. With lighter loads (e.g., 10 kΩ), swing improves to within 80 mV of either rail - critical for maximizing dynamic range in 5 V video signal chains.

Is ADA4850-2YCPZ-RL7 suitable for driving 75 Ω video cables?

Yes. The ADA4850-2YCPZ-RL7 is characterized with RL = 150 Ω and RL = 1 kΩ loads, and its 118 mA short-circuit current (sourcing) and 94 mA (sinking) capability support direct 75 Ω termination when used with appropriate series output resistors (e.g., 43 Ω in series with 75 Ω load). Its 0.12% differential gain ensures minimal color error in composite video transmission.