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LMH6644 Dataheets PDF



Part Number LMH6644
Manufacturers Texas Instruments
Logo Texas Instruments
Description 75mA Rail-to-Rail Output Amplifiers
Datasheet LMH6644 DatasheetLMH6644 Datasheet (PDF)

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMH6642, LMH6643, LMH6644 SNOS966Q – MAY 2001 – REVISED SEPTEMBER 2014 LMH664x Low Power, 130 MHz, 75 mA Rail-to-Rail Output Amplifiers 1 Features 1(VS = ±5 V, TA = 25°C, RL = 2 kΩ, AV = +1. Typical Values Unless Specified). • −3 dB BW (AV = +1) 130 MHz • Supply Voltage Range 2.7 V to 12.8 V • Slew Rate, (AV = −1) 130V/µs(1) • Supply Current (no load) 2.7 mA/amp • Output Short Circuit Current +115 mA to 14.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMH6642, LMH6643, LMH6644 SNOS966Q – MAY 2001 – REVISED SEPTEMBER 2014 LMH664x Low Power, 130 MHz, 75 mA Rail-to-Rail Output Amplifiers 1 Features 1(VS = ±5 V, TA = 25°C, RL = 2 kΩ, AV = +1. Typical Values Unless Specified). • −3 dB BW (AV = +1) 130 MHz • Supply Voltage Range 2.7 V to 12.8 V • Slew Rate, (AV = −1) 130V/µs(1) • Supply Current (no load) 2.7 mA/amp • Output Short Circuit Current +115 mA to 145 mA • Linear Output Current ±75 mA • Input Common Mode Volt. 0.5 V Beyond V−, 1 V from V+ • Output Voltage Swing 40 mV from Rails • Input Voltage Noise (100 kHz) 17nV/√Hz • Input Current Noise (100 kHz) 0.9pA/√Hz • THD (5MHz, RL = 2kΩ, VO = 2VPP, AV = +2) −62 dBc • Settling Time 68 ns • Fully Characterized for 3 V, 5 V, and ±5 V • Overdrive Recovery 100 ns • Output Short Circuit Protected(2) • No Output Phase Reversal with CMVR Exceeded (1) Slew rate is the average of the rising and falling slew rates (2) Output short circuit duration is infinite for VS < 6 V at room temperature and below. For VS > 6 V, allowable short circuit duration is 1.5 ms. 2 Applications • Active Filters • CD/DVD ROM • ADC Buffer Amp • Portable Video • Current Sense Buffer 3 Description The LMH664X family true single supply voltage feedback amplifiers offer high speed (130 MHz), low distortion (−62 dBc), and exceptionally high output current (approximately 75 mA) at low cost and with reduced power consumption when compared against existing devices with similar performance. Input common mode voltage range extends to 0.5 V below V− and 1 V from V+. Output voltage range extends to within 40 mV of either supply rail, allowing wide dynamic range especially desirable in low voltage applications. The output stage is capable of approximately 75 mA in order to drive heavy loads. Fast output Slew Rate (130 V/µs) ensures large peak-to-peak output swings can be maintained even at higher speeds, resulting in exceptional full power bandwidth of 40 MHz with a 3 V supply. These characteristics, along with low cost, are ideal features for a multitude of industrial and commercial applications. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LMH6642 SOT-23 (5) SOIC (8) 2.90 mm × 1.60 mm 4.90 mm × 3.91 mm LMH6643 SOIC (8) VSSOP (8) 3.00 mm × 3.00 mm LMH6644 SOIC (14) TSSOP (14) 8.64 mm × 3.91 mm 5.00 mm × 4.40 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. Closed Loop Gain vs. Frequency for Various Supplies 8.0 ±1.5V 6.0 4.0 ±5 2.0 0.0 ±2.5V GAIN (dB) VO = 0.2VPP AV = +2 RF = RL = 2k 100k 1M 10M FREQUENCY (Hz) 200M 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. LMH6642, LMH6643, LMH6644 SNOS966Q – MAY 2001 – REVISED SEPTEMBER 2014 www.ti.com Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Description (continued)......................................... 3 6 Pin Configuration and Functions ......................... 4 7 Specifications......................................................... 5 7.1 Absolute Maximum Ratings ...................................... 5 7.2 Handling Ratings....................................................... 5 7.3 Recommended Operating Conditions....................... 5 7.4 Thermal Information .................................................. 5 7.5 3V Electrical Characteristics .................................... 6 7.6 5V Electrical Characteristics .................................... 8 7.7 ±5V Electrical Characteristics ................................ 10 7.8 Typical Performance Characteristics ...................... 12 8 Detailed Description ............................................ 21 8.1 Overview ................................................................. 21 8.2 Functional Block Diagram ....................................... 21 8.3 Feature Description................................................. 21 8.4 Device Functional Modes........................................ 21 9 Application and Implementation ........................ 22 9.1 Application Information............................................ 22 9.2 Typical Application .................................................. 22 10 Power Supply Recommendations ..................... 24 11 Layout................................................................... 25 11.1 Layout Guidelines ................................................. 25 11.2 Layout Example ...


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