Features
(VS = 16V, RL= 2 k to V+/2, 25°C, Typical Values Unless Specified)
Supply current (no load) |
4 mA |
Output resistance (closed loop 1 MHz) |
0.35 |
-3 dB BW (AV = 1) |
190 MHz |
Settling time (±0.1%, 2 VPP) |
35 ns |
Input common mode voltage |
-0.3V to 15.1V |
Output voltage swing |
100 mV from rails |
Linear output current |
±100 mA |
Total harmonic distortion (2 VPP, 5 MHz) |
-64 dBc |
Fully characterized for: |
5V & 16V |
No output phase reversal with CMVR exceeded |
|
Differential gain (RL = 150) |
0.12% |
Differential phase (RL = 150) |
0.12° |
Description The LMH™6640 is a voltage feedback operational amplifier with a rail-to-rail output drive capability of 100 mA. Employing National's patented VIP10 process, the LMH6640 delivers a bandwidth of 190 MHz at a current consumption of only 4mA. An input common mode voltage range extending to 0.3V below the V- and to within 0.9V of V+, makes the LMH6640 a true single supply op-amp. The output voltage range extends to within 100 mV of either supply rail providing the user with a dynamic range that is especially desirable in low voltage applications.
The LMH6640 offers a slew rate of 170 V/µs resulting in a full power bandwidth of approximately 28 MHz with 5V single supply (2 VPP, -1 dB). Careful attention has been paid to ensure device stability under all operating voltages and modes. The result is a very well behaved frequency response characteristic for any gain setting including +1, and excellent specifications for driving video cables including total harmonic distortion of -64 dBc @ 5 MHz, differential gain of 0.12% and differential phase of 0.12°.
Applications
| • | TFT panel VCOM buffer amplifier |
| • | Active filters |
| • | CD/DVD ROM |
| • | ADC buffer amplifier |
| • | Portable video |
| • | Current sense buffer |
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LMH6640
