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TIDA-00066

Reference Design for High-Gain Multistage Amplifier

Design files

TIDA-00066

Design files

Overview

Using the LMH6629 and OPA684 op amps, this reference design deals with the difficulties and limitations of developing very high gain, multistage amplifier circuits. Supported by a full scale application report including theory, simulations, board design and evaluation, this design can be easily adjusted for a given application.

Features
  • High Voltage Gain - up to 120,000 V/V
  • High Bandwidth - Flat Band 100 kHz - 4 MHz @ 120,000 V/V
  • Low Supply Operation (+/-2.5 V)
  • Low Component Count
  • This reference design has been lab tested and is supported with design files and an application report
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Test report — TIDA-00066
TIDU002.PDF (3457 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

download Schematic — TIDA-00066
TIDR269.PDF (86 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDA-00066
TIDR270.PDF (101 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Gerber file — TIDA-00066
TIDC004.ZIP (40 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

High-speed op amps (GBW ≥ 50 MHz)

LMH6629 — Ultra-low-noise high-speed operational amplifier with shutdown

Data sheet: PDF | HTML
High-speed op amps (GBW ≥ 50 MHz)

OPA684 — Low-Power, Current Feedback Operational Amplifier With Disable

Data sheet: PDF

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Software

Technical documentation

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Type Title Date
Test report TIDA-00066 Test Results Oct. 08, 2013

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