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LMH6640 Datasheet

  • LMH6640

  • TFT-LCD Single, 16V Rail-to-Rail High Output Operational Amp...

  • 13頁(yè)

  • NSC

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LMH6640 TFT-LCD Single, 16V Rail-to-Rail High Output Operational Amplifier
November 2004
LMH6640
TFT-LCD Single, 16V Rail-to-Rail High Output
Operational Amplifier
General Description
The LMH
鈩?/div>
6640 is a voltage feedback operational amplifier
with a rail-to-rail output drive capability of 100 mA. Employ-
ing National鈥檚 patented VIP10 process, the LMH6640 deliv-
ers 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鈭?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/碌s resulting in a full
power bandwidth of approximately 28 MHz with 5V single
supply (2 V
PP
, 鈭? dB). Careful attention has been paid to
ensure device stability under all operating voltages and
modes. The result is a very well behaved frequency re-
sponse characteristic for any gain setting including +1, and
excellent specifications for driving video cables including
total harmonic distortion of 鈭?4 dBc
@
5 MHz, differential
gain of 0.12% and differential phase of 0.12藲.
Features
(V
S
= 16V, R
L
= 2 k鈩?to V
+
/2, 25藲C, Typical Values Unless
Specified)
n
Supply current (no load)
4 mA
n
Output resistance (closed loop 1 MHz)
0.35鈩?/div>
n
鈭? dB BW (A
V
= 1)
190 MHz
n
Settling time (
鹵
0.1%, 2 V
PP
)
35 ns
n
Input common mode voltage
鈭?.3V to 15.1V
n
Output voltage swing
100 mV from rails
鹵
100 mA
n
Linear output current
n
Total harmonic distortion (2 V
PP
, 5 MHz)
鈭?4 dBc
n
Fully characterized for:
5V & 16V
n
No output phase reversal with CMVR exceeded
n
Differential gain (R
L
= 150鈩?
0.12%
n
Differential phase (R
L
= 150鈩?
0.12藲
Applications
n
n
n
n
n
n
TFT panel V
COM
buffer amplifier
Active filters
CD/DVD ROM
ADC buffer amplifier
Portable video
Current sense buffer
Typical Application
20086234
Typical Application as a TFT Panel V
COM
Driver
LMH
鈩?/div>
is a trademark of National Semiconductor Corporation.
漏 2004 National Semiconductor Corporation
DS200862
www.national.com

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