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LMH6702
SNOSA03H – NOVEMBER 2002 – REVISED MAY 2016
LMH6702 1.7-GHz Ultra-Low Distortion Wideband Op Amp
Gain (dB) Phase (°) HD (dBc)
1 Features
VS 1 = ±5 V, TA = 25°C, AV = 2V/V, RL = 100 Ω, VOUT = 2 VPP, Typical Unless Noted: • 2nd and 3rd Harmonics (5 MHz, SOT-23) −100/−96 dBc • −3-dB Bandwidth (VOUT = 0.5 VPP) 1.7 GHz • Low Noise 1.83 nV/√Hz • Fast Settling to 0.1% 13.4 ns • Fast Slew Rate 3100 V/μs • Supply Current 12.5 mA • Output Current 80 mA • Low Intermodulation Distortion (75 MHz) −67 dBc • Improved Replacement for CLC409 and CLC449
2 Applications
• Flash A-D Driver • D-A Transimpedance Buffer • Wide Dynamic Range IF Amp • Radar and Communication Receivers • Line Driver • High Resolution Video
Inverting Frequency Response
1
GAIN 0
-30 AV = -1
AV = -2 -80
-1 PHASE
-2
-130 -180
-3
-230
-4
AV = -4
-280
-5
-330
AV = -10
-6
-380
-7 1M
10M
100M
Frequency (Hz)
-430 1G
3 Description
The LMH6702 is a very wideband, DC-coupled monolithic operational amplifier designed specifically for wide dynamic range systems requiring exceptional signal fidelity. Benefitting from current feedback architecture, the LMH6702 offers unity gain stability at exceptional speed without need for external compensation.
With its 720-MHz bandwidth (AV = 2 V/V, VO = 2 VPP), 10-bit distortion levels through 60-MHz (RL = 100 Ω), 1.83-nV/√Hz input referred noise and 12.5-mA supply current, the LMH6702 is the ideal driver or buffer for high-speed flash A-D and D-A converters.
Wide dynamic range systems such as radar and communication receivers that require a wideband amplifier offering exceptional signal purity will find the low input referred noise and low harmonic and intermodulation distortion of the LMH6702 an attractive high speed solution.
The LMH6702 is constructed using VIP10™ complimentary bipolar process and proven current feedback architecture. The LMH6702 is available in SOIC and SOT-23 packages.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMH6702
SOIC (8) SOT-23 (5)
4.90 mm × 3.91 mm 2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at the end of the datasheet.
Harmonic Distortion vs Load and Frequency
-40
-45
-50
HD2, RL = 1 k:
-55
-60
-65 HD2, RL = 100 : -70
-75 HD3, RL = 100 : -80
-85
-90
-95 -100
HD3, RL = 1 k:
-105 1M
10M
100M
Frequency (Hz)
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.
LMH6702
SNOSA03H – NOVEMBER 2002 – REVISED MAY 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Pin Configuration and Functions ......................... 3 6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4 6.2 ESD Ratings.............................................................. 4 6.3 Recommended Operating Conditions....................... 4 6.4 Thermal Information .................................................. 4 6.5 Electrical Characteristics........................................... 5 6.6 Typical Characteristics .............................................. 7 7 Detailed Description ............................................ 11 7.1 Overview ................................................................. 11 7.2 Feature Description................................................. 11
7.3 Device Functional Modes........................................ 12 8 Application and Implementation ........................ 13
8.1 Application Information............................................ 13 8.2 Typical Application ................................................. 13 9 Power Supply Recommendations...................... 15 10 Layout................................................................... 15 10.1 Layout Guidelines ................................................. 15 10.2 Layout Example .................................................... 16 11 Device and Documentation Support ................. 17 11.1 Documentation Support ....................................... 17 11.2 Community Resources.......................................... 17 11.3 Trademarks ........................................................... 17 11.4 Electrostatic Discharge Caution ............................ 17 11.5 Glossary ................................................................ 17 12 Mechanical, Packaging, and Orderable Information ......................