OPA171_15 Datasheet, PDF (1/43 Pages) Texas Instruments – Single-Supply, SOT553, General-Purpose Operational Amplifiers

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OPA171, OPA2171, OPA4171
SBOS516E – SEPTEMBER 2010 – REVISED JUNE 2015
OPAx171 36-V, Single-Supply, SOT553, General-Purpose Operational Amplifiers
1 Features
•1 Supply Range: 2.7 to 36 V, ±1.35 V to ±18 V
• Low Noise: 14 nV/√Hz
• Low Offset Drift: ±0.3 µV/°C (Typical)
• RFI Filtered Inputs
• Input Range Includes the Negative Supply
• Input Range Operates to Positive Supply
• Rail-to-Rail Output
• Gain Bandwidth: 3 MHz
• Low Quiescent Current: 475 µA per Amplifier
• High Common-Mode Rejection: 120 dB (Typical)
• Low-Input Bias Current: 8 pA
• Industry-Standard Packages:
– 8-Pin SOIC
– 8-Pin MSOP
– 14-Pin TSSOP
• microPackages:
– Single in SOT553
– Dual in VSSOP-8
2 Applications
• Tracking Amplifier in Power Modules
• Merchant Power Supplies
• Transducer Amplifiers
• Bridge Amplifiers
• Temperature Measurements
• Strain Gauge Amplifiers
• Precision Integrators
• Battery-Powered Instruments
• Test Equipment
SPACE
Offset Voltage vs Common-Mode Voltage
1000
800
600
400
200
0
-200
-400
-600
-800
-1000
-20
V_CM = -18.1V
-15 -10
10 Typical Units Shown
-5 0
5
V_CM (V)
10 15 20
1
3 Description
The OPA171, OPA2171, and OPA4171 (OPAx171)
are a family of 36-V, single-supply, low-noise
operational amplifiers with the ability to operate on
supplies ranging from 2.7 V (±1.35 V) to 36 V (±18
V). These devices are available in micro-packages
and offer low offset, drift, and bandwidth with low
quiescent current. The single, dual, and quad
versions all have identical specifications for maximum
design flexibility.
Unlike most operational amplifiers, which are
specified at only one supply voltage, the OPAx171
family is specified from 2.7 to 36 V. Input signals
beyond the supply rails do not cause phase reversal.
The OPAx171 family is stable with capacitive loads
up to 300 pF. The input can operate 100 mV below
the negative rail and within 2 V of the top rail during
normal operation. These devices can operate with full
rail-to-rail input 100 mV beyond the top rail, but with
reduced performance within 2 V of the top rail.
The OPAx171 series of operational amplifiers are
specified from –40°C to 125°C.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
OPA171
SOT23 (5)
1.60 mm × 2.90 mm
OPA2171
SOIC (8)
3.90 mm × 4.90 mm
OPA4171
TSSOP (14)
SOIC (14)
4.40 mm × 5.00 mm
3.90 mm × 8.65 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Offset Voltage vs Power Supply
350
V_SUPPLY = ±1.35V to ±18V
250 10 Typical Units Shown
150
50
-50
-150
-250
-350
0 2 4 6 8 10 12 14 16 18 20
V_SUPPLY (V)
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.