LMH6702

(ACTIVE) 1.7 GHz, Ultra Low Distortion, Wideband Op Amp

Diagram

Functional Diagram

Typical Performance

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.

Features

    VS = ±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

Parametrics

Architecture Bipolar^Current FB    
Number of channels (#) 1    
Total Supply Voltage (Min) (+5V=5, +/-5V=10) 8    
Total Supply Voltage (Max) (+5V=5, +/-5V=10) 12    
BW @ Acl (MHz) 1700    
Acl, min spec gain (V/V) 1    
Slew Rate (Typ) (V/us) 3100    
Vn at flatband (Typ) (nV/rtHz) 1.83    
Vn at 1 kHz (Typ) (nV/rtHz) 1.83    
Iq per channel (Typ) (mA) 12.5    
Vos (offset voltage @ 25 C) (Max) (mV) 4.5    
Rail-to-rail No    
Features N/A    
Rating Catalog    
Operating temperature range (C) -40 to 85    
Package Group SOIC|8^SOT-23|5    
Package size: mm2:W x L (PKG) 8SOIC: 29 mm2: 6 x 4.9 (SOIC|8)^5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23|5)    
CMRR (Typ) (dB) 48    
Input bias current (Max) (pA) 15000000    
Offset drift (Typ) (uV/C) 13    
GBW (Typ) (MHz) 1700    
Output current (Typ) (mA) 80    
2nd harmonic (dBc) 100    
3rd harmonic (dBc) 96    
@ MHz 5    

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