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ADA4870
High Speed, High Voltage, 1 A Output Drive Amplifier
Overview
Features and Benefits
- Ideal for driving high capacitive or low resistive loads
- Wide supply range: 10 V to 40 V
- High output current drive: 1A
- Wide output voltage swing: 37 V swing with 40 V supply
- High slew rate: 2500 V/μs
- High bandwidth: 52 MHz large signal, 70 MHz small signal
- Low noise: 2.1 nV/√Hz
- Quiescent current: 32.5 mA
- Power down: 0.75 mA - Short-circuit protection and flag
- Current limit: 1.2 A - Thermal protection
Product Details
The ADA4870 is a unity gain stable, high speed current feedback amplifier capable of delivering 1 A of output current and 2500 V/μs slew rate from a 40 V supply. Manufactured using the Analog Devices, Inc., proprietary high voltage extra fast complementary bipolar (XFCB) process, the innovative architecture of the ADA4870 enables high output power, high speed signal processing solutions in applications that require driving a low impedance load.
The ADA4870 is ideal for driving high voltage power FETs, piezo transducers, PIN diodes, CCD panels, and a variety of other demanding applications that require high speed from high supply voltage at high output current.
The ADA4870 is available in a power SOIC package (PSOP_3), featuring an exposed thermal slug that provides high thermal conductivity, enabling efficient heat transfer for improved perfor-mance and reliability in demanding applications. The ADA4870 operates over the industrial temperature range (−40°C to +85°C).
Applications
- Envelope tracking
- Power FET driver
- Ultrasound
- Piezo drivers
- PIN diode drivers
- Waveform generation
- Automated test equipment (ATE)
- CCD panel drivers
- Composite amplifiers
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Part#
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Slew Rate (typ)
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BW -3 dB (typ)
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Vs span (max)
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Out V+ Headroom (typ)
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Iout (typ)
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Amp Features
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2.5k
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52M
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40
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1.4
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1
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Shutdown
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900
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66M
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36
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1.4
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2
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Shutdown
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Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Tools & Simulations
SPICE Models
Reference Materials
ADA4870 Industry’s Fastest 40V High Output Current Amplifier
Technical Articles (3)
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Support & Discussions
ADA4870 Discussions
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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