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OPA727, OPA2727
OPA4727, OPA728
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SBOS314H–SEPTEMBER 2004–REVISED APRIL 2007
e-trim™ 20MHz, High Precision CMOS
Operational Amplifier
FEATURES
DESCRIPTION
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OFFSET: 15µV (typ), 150µV (max)
DRIFT: 0.3µV/°C (typ), 1.5µV/°C (max)
BANDWIDTH: 20MHz
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 (150µV max) and drift (1.5µV/°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 and OPA728 family is trimmed over
temperature. The devices feature very high CMRR
and open-loop gain to minimize errors.
SLEW RATE: 30V/µs
BIAS CURRENT: 500pA (max)
LOW NOISE: 6nV/√Hz at 100kHz
THD+N: 0.0003% at 1kHz
QUIESCENT CURRENT: 4.3mA/ch
SUPPLY VOLTAGE: 4V to 12V
SHUTDOWN MODE (OPA728): 6µA
Excellent ac characteristics, such as 20MHz GBW,
30V/µs 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 500pA, they are well suited
for use as transimpedance (I/V-conversion)
amplifiers for monitoring optical power in ONET
applications.
APPLICATIONS
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OPTICAL NETWORKING
TRANSIMPEDANCE AMPLIFIERS
INTEGRATORS
ACTIVE FILTERS
A/D CONVERTER DRIVERS
I/V CONVERTER FOR DACs
HIGH PERFORMANCE AUDIO
PROCESS CONTROL
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 6µA and features a
reference pin for easy shutdown operation with
standard CMOS logic in dual-supply applications.
TEST EQUIPMENT
OPAx727 AND OPAx728 RELATED PRODUCTS
FEATURES
PRODUCT
20MHz, 3mV, 4µV/°C
OPA725
(non-e-trim version of OPA727)
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 in TSSOP-14. All versions are specified for
operation from –40°C to +125°C.
20MHz, 3mV, 4µV/°C, Shutdown
(non-e-trim version of OPA728)
OPA726
+12V
OPA727
VOUT
l
-VB
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 is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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