OPA3690
OPA3
69 0
OPA36
90
SBOS237A – MARCH 2002
Triple, Wideband, Voltage-Feedback
OPERATIONAL AMPLIFIER With Disable
FEATURES
q
FLEXIBLE SUPPLY RANGE:
+5V to +12V Single Supply
±
2.5V to
±
6V Dual Supply
q
WIDEBAND +5V OPERATION: 220MHz (G = +2)
q
HIGH OUTPUT CURRENT: 190mA
q
OUTPUT VOLTAGE SWING:
±
4.0V
q
HIGH SLEW RATE: 1800V/
µ
s
q
LOW SUPPLY CURRENT: 5.5mA/ch
q
LOW DISABLED CURRENT: 100
µ
A/ch
DESCRIPTION
The OPA3690 represents a major step forward in unity-gain
stable, voltage-feedback op amps. A new internal architec-
ture provides slew rate and full power bandwidth previously
found only in wideband current-feedback op amps. A new
output stage architecture delivers high currents with a mini-
mal headroom requirement. These give exceptional single-
supply operation. Using a single +5V supply, the OPA3690
can deliver a 1V to 4V output swing with over 100mA drive
current and 150MHz bandwidth. This combination of fea-
tures makes the OPA3690 an ideal RGB line driver or single-
supply Analog-to-Digital Converter (ADC) input driver.
The OPA3690’s low 5.5mA/ch supply current is precisely
trimmed at 25°C. This trim, along with low temperature drift,
ensures lower maximum supply current than competing
products. System power may be reduced further using the
optional disable control pin. Leaving this disable pin open,
or holding it HIGH, will operate the OPA3690 normal. If
pulled LOW, the OPA3690 supply current drops to less than
100µA/ch while the output goes into a high impedance
state. This feature may be used for power savings.
APPLICATIONS
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q
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q
q
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VIDEO LINE DRIVING
HIGH-SPEED IMAGING CHANNELS
ADC BUFFERS
PORTABLE INSTRUMENTS
TRANSIMPEDANCE AMPLIFIERS
ACTIVE FILTERS
OPA3690 RELATED PRODUCTS
SINGLES
Voltage Feedback
Current Feedback
Fixed Gain
OPA690
OPA691
OPA692
DUALS
OPA2690
OPA2691
OPA2682
TRIPLES
OPA3680
OPA3691
OPA3692
1pF
49.9Ω
V
IN
1/3
OPA3690
49.9Ω
R
75.0Ω
49.9Ω
C
330pF
1/3
OPA3690
R
75.0Ω
49.9Ω
C
330pF
1pF
249Ω
249Ω
249Ω
249Ω
V
OUT
1/3
OPA3690
Buffered Analog Delay Line
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 2002, Texas Instruments Incorporated
www.ti.com
ETC [ ETC ]
