Datasheet
micro
Power, Rail-to-Rail
Operational Amplifiers
FEATURES
● LOW I
Q
: 20µA
●
micro
SIZE PACKAGES: WCSP-8, SC70-5
SOT23-5, SOT23-8, and TSSOP-14
● HIGH SPEED/POWER RATIO WITH
BANDWIDTH: 350kHz
● RAIL-TO-RAIL INPUT AND OUTPUT
● SINGLE SUPPLY: 2.3V to 5.5V
APPLICATIONS
● PORTABLE EQUIPMENT
● BATTERY-POWERED EQUIPMENT
● 2-WIRE TRANSMITTERS
● SMOKE DETECTORS
● CO DETECTORS
DESCRIPTION
The OPA347 is a
micro
Power, low-cost operational amplifier
available in
micro
packages. The OPA347 (single version) is
available in the SC-70 and SOT23-5 packages. The OPA2347
(dual version) is available in the SOT23-8 and WCSP-8
packages. Both are also available in the SO-8. The OPA347
is also available in the DIP-8. The OPA4347 (quad) is
available in the SO-14 and the TSSOP-14.
The small size and low power consumption (34µA per chan-
nel maximum) of the OPA347 make it ideal for portable and
battery-powered applications. The input range of the OPA347
extends 200mV beyond the rails, and the output range is
within 5mV of the rails. The OPA347 also features an
excellent speed/power ratio with a bandwidth of 350kHz.
The OPA347 can be operated with a single or dual power
supply from 2.3V to 5.5V. All models are specified for
operation from –55°C to +125°C.
®
O
P
A
3
4
7
O
P
A
3
4
7
O
P
A
2
3
4
7
O
P
A
4
3
4
7
OPA347
1
2
3
5
4
V+
–In
Out
V–
+In
OPA347
SOT23-5
1
2
3
4
8
7
6
5
NC
V+
Out
NC
NC
–In
+In
V–
OPA347
SO-8, DIP-8
1
2
3
4
8
7
6
5
V+
Out B
–In B
+In B
Out A
–In A
+In A
V–
OPA2347
SOT23-8, SO-8
A
B
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Out D
–In D
+In D
V–
+In C
–In C
Out C
Out A
–In A
+In A
V+
+In B
–In B
Out B
OPA4347
TSSOP-14, SO-14
AD
BC
OPA347
OPA2347
OPA4347
SBOS167D – NOVEMBER 2000– REVISED JULY 2007
www.ti.com
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 © 2000-2007, Texas Instruments Incorporated
1
2
3
5
4
V+
Out
+In
V–
–In
OPA347
SC70-5
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.
All trademarks are the property of their respective owners.
1
2
3
4
1
8
7
6
5
V+
Out B
–In B
+In B
Out A
–In A
+In A
V–
OPA2347
(bump side down)
Not to Scale
WCSP-8
(top view)