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OPA728 Datasheet

  • OPA728

  • 20MHz, High Precision CMOS Operational Amplifier

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OPA727, OPA2727
OPA4727, OPA728
SBOS314B 鈭?SEPTEMBER 2004 鈭?REVISED DECEMBER 2004
e-trim錚?/div>
20MHz, High Precision CMOS
Operational Amplifier
FEATURES
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OFFSET: 15碌V (typ), 150碌V (max)
DRIFT: 0.3碌V/擄C (typ), 1.5碌V/擄C (max)
BANDWIDTH: 20MHz
SLEW RATE: 30V/碌s
BIAS CURRENT: 100pA (max)
LOW NOISE: 6nV/鈭欻z at 100kHz
THD+N: 0.0003% at 1kHz
QUIESCENT CURRENT: 4.3mA/ch
SUPPLY VOLTAGE: 4V to 12V
SHUTDOWN MODE (OPA728): 6碌A(chǔ)
DESCRIPTION
The OPA727 and OPA728 series op amps use a
state-of-the-art 12V analog CMOS process and
e-trim,
a
package-level trim, offering outstanding dc precision and
ac performance. The extremely low offset (150碌V max)
and drift (1.5碌V/擄C) are achieved by trimming the IC
digitally after packaging to avoid the shift in parameters as
a result of stresses during package assembly. To correct
for offset drift, the OPA727/OPA728 family is trimmed over
temperature. The devices feature very high CMRR and
open loop gain to minimize errors.
Excellent ac characteristics, such as 20MHz GBW, 30V/碌s
slew rate and 0.0003% THD+N make the OPA727 and
OPA728 well-suited for communication, high-end audio,
and active filter applications. With a bias current of less
than 100pA, they are ideal for use as transimpedance
(I/V-conversion) amplifiers for monitoring optical power in
ONET applications.
Optimized for single-supply operation up to 12V, the input
common-mode range extends to GND for true
single-supply functionality. The output swings to within
150mV of the rails, maximizing dynamic range. The low
quiescent current of 4.3mA makes it well-suited for use in
battery-operated equipment. The OPA728 shutdown
version reduces the quiescent current to typically 6碌A(chǔ) and
features a reference pin for easy shutdown operation with
standard CMOS logic in dual-supply applications.
For ease of use, the OPA727 and OPA728 op amp families
are fully specified and tested over the supply range of 4V
to 12V. The OPA727 (single) and OPA728 (single with
shutdown) are available in MSOP-8 and DFN-8; the
OPA2727 (dual) is available in DFN-8 and SO-8, and the
quad version OPA4727 will be available Q1鈥?5 in
TSSOP-14. All versions are specified for operation from
鈭?0擄C to +125擄C.
APPLICATIONS
OPTICAL NETWORKING
TRANSIMPEDANCE AMPLIFIERS
INTEGRATORS
ACTIVE FILTERS
A/D CONVERTER DRIVERS
I/V CONVERTER FOR DACs
HIGH PERFORMANCE AUDIO
PROCESS CONTROL
TEST EQUIPMENT
OPAx727 AND OPAx728 RELATED PRODUCTS
FEATURES
20MHz, 3mV, 4碌V/擄C
(non-etrim version of OPA727)
20MHz, 3mV, 4碌V/擄C, Shutdown
(non-etrim version of OPA728)
PRODUCT
OPA725
OPA726
+12V
位
OPA727
V
OUT
鈭扸
B
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.
e-trim錚?/div>
is a trademark of Texas Instruments, Incorporated. All other trademarks are the property of their respective owners.
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
錚?/div>
2004, Texas Instruments Incorporated
www.ti.com

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