OPA690IDBVR
| Model | OPA690IDBVR |
| Description | Wideband, Voltage Feedback OPERATIONAL AMPLIFIER With Disable |
| PDF file | Total 24 pages (File size: 409K) |
| Chip Manufacturer | TI |
OPA690
OPA
690
OPA
690
SBOS223A—DECEMBER 2001 – REVISED JULY 2002
Wideband, Voltage Feedback
OPERATIONAL AMPLIFIER With Disable
FEATURES
q
FLEXIBLE SUPPLY RANGE:
+5V to +12V Single Supply
±
2.5V to
±
5V Dual Supply
q
UNITY-GAIN STABLE: 500MHz (G = 1)
q
HIGH OUTPUT CURRENT: 190mA
q
OUTPUT VOLTAGE SWING:
±
4.0V
q
HIGH SLEW RATE: 1800V/
µ
s
q
LOW SUPPLY CURRENT: 5.5mA
q
LOW DISABLED CURRENT: 100
µ
A
q
WIDEBAND +5V OPERATION: 220MHz (G = 2)
APPLICATIONS
q
q
q
q
q
q
q
q
VIDEO LINE DRIVER
xDSL LINE DRIVER/RECEIVER
HIGH SPEED IMAGING CHANNELS
ADC BUFFERS
PORTABLE INSTRUMENTS
TRANSIMPEDANCE AMPLIFIERS
ACTIVE FILTERS
OPA680 UPGRADE
DESCRIPTION
The OPA690 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
minimal headroom requirement. These combine to give
exceptional single-supply operation. Using a single +5V
supply, the OPA690 can deliver a 1V to 4V output swing
with over 150mA drive current and 150MHz bandwidth.
This combination of features makes the OPA690 an ideal
RGB line driver or single-supply Analog-to-Digital Con-
verter (ADC) input driver.
+5V
R
1
R
1
2.5V
0.1µF
C
1
V
I
R
2
3
2
8
OPA690
4
R
5
20Ω
C
4
10µF
C
2
R
4
20Ω
The OPA690’s low 5.5mA supply current is precisely trimmed
at 25°C. This trim, along with low temperature drift, gives
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 OPA690 normally. If pulled LOW,
the OPA690 supply current drops to less than 100µA while
the output goes to a high impedance state. This feature may
be used for power savings.
OPA690 RELATED PRODUCTS
SINGLES
Voltage Feedback
Current Feedback
Fixed Gain
3.3V
THS1040
C
3
20pF
AIN+
10-Bit
40MSPS
AIN–
DUALS
OPA2690
OPA2691
OPA2682
TRIPLES
OPA3690
OPA3691
OPA3692
OPA680
OPA691
OPA692
R
3
C
6
20pF
V
REF
= 1V
C
5
0.1µF
Single-Supply ADC Driver
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 © 2001, Texas Instruments Incorporated
www.ti.com
