OPA2206
SBOSA11A – MARCH 2020 – REVISED MARCH 2021
OPA2206 Input-Overvoltage-Protected, 2-µV, 0.04-µV/°C, Low-Power
Precision Op Amp
1 Features
3 Description
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Integrated input overvoltage protection up to ±40 V
beyond supplies
e-trim™ operational amplifier performance
– Low offset voltage: 15 µV (max)
– Low offset voltage drift: ±0.2 µV/°C (max)
Super beta inputs
– Input bias current: 0.4 nA (max)
– Input current noise: 110 fA/√Hz
Low noise
– 0.1-Hz to 10-Hz: 0.2 µVPP
– Voltage noise: 8 nV/√Hz
AOL, CMRR, and PSRR: > 126 dB (full
temperature range)
Gain bandwidth product: 3.6 MHz
Low quiescent current: 220 µA (max)
Slew rate: 4 V/µs
Overload power limiter
Rail-to-rail output
EMI/RFI filtered inputs
Wide supply: 4.5 V to 36 V
Temperature range: –40°C to +125°C
Available in high grade (OPA2206) and standard
grade (OPA2206A)
The OPA2206 is the next generation of the industry-
standard OPAx277 family with the additional feature
of input overvoltage protection. The device is a
precision bipolar, e-trim operational amplifier with
super beta inputs. The device uses TI’s proprietary
trimming technology to achieve an impressive input
offset voltage of ±2 μV (typ) and an input offset
voltage drift of ±0.04 μV/°C (typ). The input
overvoltage protection activates when the input signal
exceeds the supply range and offers protection up to
40 V beyond either supply. This feature eliminates the
need for external cumbersome circuitry to prevent the
amplifier from damages.
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Designed on a bipolar process, the OPA2206
provides a superb speed-to-power ratio of 3.6 MHz
for a mere 220 μA. The device also achieves a low
voltage noise density of only 8 nV/√Hz at 1 kHz.
Thanks to super-beta inputs, the OPA2206 has a very
low input bias current of 100 pA (typ) and a current
noise density of 110 fA/√Hz.
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The high performance of the OPA2206 makes this
device an excellent choice for systems requiring
high precision and low power consumption, such as
high-density analog input modules in programmable
logic controllers, field and portable instrumentation
systems, and source measurement units. The
OPA2205 is a related product with the same op amp
core, without the input protection but with improved
broadband noise (7.2 nV/√Hz).
2 Applications
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Analog input module
Mixed module (AI,AO,DI,DO)
Lab and field Instrumentation
Source measurement unit (SMU)
Digital multimeter (DMM)
Train control and management
String inverter
Device Information
PART NUMBER
OPA2206
PACKAGE(1)
BODY SIZE (NOM)
VSSOP (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the package option
addendum at the end of the data sheet.
Data acquisition (DAQ)
7.5
80 k
20 k
±10 V
12 V
5
12 V
2.2 nF
2.5
0
100 nF
GND
100 nF
GND
–
+
3.74 k
11.8 k
2.2 nF
6.65 k
–
+
Output
-2.5
-5
OPA2206
TA = –40°C
TA = 25°C
TA = 85°C
TA = 125°C
2 V
OPA2206
330 pF
GND
100 nF
GND
100 nF
GND
12 V
-7.5
-60
12 V
GND
-40
-20
0
20
40
60
Common-mode Voltage (V)
OPA2206 Typical Application
OPA2206 Input Overvoltage Protection
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.