amplifier offering excellent accuracy. Its versatile
3-op amp design and small size make it ideal for a
wide range of applications. Current-feedback input
circuitry provides wide bandwidth even at high gain
(200kHz at G = 100).
Simple pin connections set an accurate gain of 10 or
100V/V without external resistors. Internal input pro-
tection can withstand up to
鹵40V
without damage.
The INA2141 is laser trimmed for very low offset
voltage (50碌V), drift (0.5碌V/擄C) and high common-
mode rejection (117dB at G = 100). It operates with
power supplies as low as
鹵2.25V,
and quiescent cur-
rent is only 750碌A(chǔ) per amplifier鈥攊deal for battery
operated systems.
Packages are 16-pin plastic DIP, and SOL-16
surface-mount, specified for the 鈥?0擄C to +85擄C
temperature range.
V+
V
INA
鈥?/div>
APPLICATIONS
q
SENSOR AMPLIFIER
THERMOCOUPLE, RTD, BRIDGE
q
MEDICAL INSTRUMENTATION
q
MULTIPLE CHANNEL SYSTEMS
9
INA2141
7
1
3
Over-Voltage
Protection
252鈩?/div>
A1A
40k鈩?/div>
25k鈩?/div>
40k鈩?/div>
A3A
25k鈩?/div>
A2A
40k鈩?/div>
40k鈩?/div>
G = 10
or
100
4
2
5050鈩?/div>
252鈩?/div>
6
V
OA
5
+
V
INA
鈥?/div>
Over-Voltage
Protection
Over-Voltage
Protection
252鈩?/div>
Ref
V
INB
16
14
A1B
40k鈩?/div>
25k鈩?/div>
40k鈩?/div>
A3B
25k鈩?/div>
10
G = 10
or
100
13
15
5050鈩?/div>
252鈩?/div>
A2B
40k鈩?/div>
8
V鈥?/div>
11
12
V
OB
+
V
INB
Over-Voltage
Protection
Ref
40k鈩?/div>
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111 鈥?Twx: 910-952-1111
1
2
3
4
5
6
7
8
9
10
