LMH6702 General Description
The LMH6702 is a very wideband, DC coupled monolithic operational amplifier designed specifically for wide dynamic range systems requiring exceptional signal fidelity. Benefiting from National's current feedback architecture, the LMH6702 offers unity gain stability at exceptional speed without need for external compensation. With its 720MHz bandwidth (AV = 2V/V, VO = 2VPP), 10-bit distortion levels through 60MHz (RL = 100Ω), 1.83nV/Hz input referred noise and 12.5mA 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, requiring a wideband amplifier offering exceptional signal purity, will find the LMH6702's low input referred noise and low harmonic and intermodulation distortion make it an attractive high speed solution.
The LMH6702 is constructed using National's VIP10™ complimentary bipolar process and National's proven current feedback architecture. The LMH6702 is available in SOIC and SOT23-5 packages.
LMH6702 Maximum Ratings
VS ..............................................................±6.75V
IOUT .........................................................(Note 3)
Common Mode Input Voltage ..................V− to V+
Maximum Junction Temperature .................+150
Storage Temperature Range .......−65 to +150
Soldering Information
Infrared or Convection (20 sec.) ..................235
Wave Soldering (10 sec.) .............................260
ESD Tolerance (Note 4)
Human Body Model .....................................2000V
Machine Model ..............................................200V
Storage Temperature Range .......−65 to +150
LMH6702 Features
VS = ±5V, TA = 25°C, AV = +2V/V, RL = 100Ω, VOUT = 2VPP, Typical unless Noted:
`2nd/3rd Harmonics (5MHz, SOT23-5) −100/−96dBc
`−3dB Bandwidth (VOUT = 2VPP) 720MHz
`Low noise 1.83nV/Hz
`Fast settling to 0.1% 13.4ns
`Fast slew rate 3100V/µs
`Supply current 12.5mA
`Output current 80mA
`Low Intermodulation Distortion (75MHz) −67dBc
`Improved Replacement for CLC409 and CLC449
LMH6702 Typical Application
·Flash A/D driver
·D/A transimpedance buffer
·Wide dynamic range IF amp
·Radar/communication receivers
·Line driver
·High resolution video
LMH6702 Connection Diagram
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