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參數資料
| 型號： | OP635 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Wideband, Single-Supply Operational Amplifier(寬帶,單電源運算放大器) |
| 中文描述： | 寬帶，單電源運算放大器（寬帶，單電源運算放大器） |
| 文件頁數： | 1/18頁 |
| 文件大小： | 284K |
| 代理商： | OP635 |
Wideband, Single-Supply
OPERATIONAL AMPLIFIERS
OPA634
OPA635
FEATURES
G
HIGH BANDWIDTH: 150MHz (G = +2)
G
+3V TO +10V SUPPLY OPERATION
G
ZERO POWER DISABLE (OPA635)
G
INPUT RANGE INCLUDES GROUND
G
4.8V OUTPUT SWING ON +5V SUPPLY
G
HIGH OUTPUT CURRENT: 80mA
G
HIGH SLEW RATE: 250V/
μ
s
G
LOW INPUT VOLTAGE NOISE: 5.6nV/
√
HZ
G
AVAILABLE IN SOT23 PACKAGE
DESCRIPTION
The OPA634 and OPA635 are low-power, voltage-
feedback, high-speed amplifiers designed to operate on
+3V or +5V single-supply voltages. Operation on
±
5V
or +10V supplies is also supported. The input range
extends below ground and to within 1.2V of the positive
supply. Using complementary common-emitter outputs
provides an output swing to within 30mV of ground and
140mV of positive supply. The high output drive cur-
rent, low differential gain and phase errors make them
ideal for single-supply composite video line driving.
Low-distortion operation is ensured by the high gain
bandwidth product (140MHz) and slew rate (250V/
μ
s).
This makes the OPA634 and OPA635 ideal input buffer
stages to 3V and 5V CMOS converters. Unlike other
low-power, single-supply operational amplifiers, distor-
tion performance improves as the signal swing is de-
creased.
A low 5.6nV input voltage noise supports wide dynamic
range operation. Multiplexing or system power reduc-
tion can be achieved using the high-speed disable line
with the OPA635. Power dissipation can be reduced to
zero by taking the disable line HIGH.
The OPA634 and OPA635 are available in an industry
standard SO-8 package. The OPA634 is also available in
an ultra-small SOT23-5 package, while the OPA635 is
available in the SOT23-6. Where lower supply current
and speed are required, consider the OPA631 and OPA632.
APPLICATIONS
G
SINGLE-SUPPLY ADC INPUT BUFFERS
G
SINGLE SUPPLY VIDEO LINE DRIVERS
G
WIRELESS LAN IF AMPLIFIERS
G
CCD IMAGING CHANNELS
G
LOW-POWER ULTRASOUND
TM
OPA634
DESCRIPTION
SINGLES
DUALS
Medium Speed, No Disable
OPA631
OPA632
OPA2631
—
With Disable
High Speed, No Disable
OPA634
OPA635
OPA2634
—
With Disable
RELATED PRODUCTS
Copyright 1999, Texas Instruments Incorporated
SBOS097A
Printed in U.S.A. February, 2001
www.ti.com
OPA635
V
IN
750
562
2.26k
374
22pF
+3V
100
Pwrdn
DIS
Disable
+3V
ADS900
10-Bit
20Msps
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