The INA114 is a low cost, general purpose instrumen-
tation amplifier offering excellent accuracy. Its versa-
tile 3-op amp design and small size make it ideal for a
wide range of applications.
A single external resistor sets any gain from 1 to 10,000.
Internal input protection can withstand up to
卤40V
without damage.
The INA114 is laser trimmed for very low offset voltage
(50碌V), drift (0.25碌V/掳C) and high common-mode
rejection (115dB at G = 1000). It operates with power
supplies as low as
卤2.25V,
allowing use in battery
operated and single 5V supply systems. Quiescent cur-
rent is 3mA maximum.
The INA114 is available in 8-pin plastic and SOL-16
surface-mount packages. Both are specified for the
鈥?0掳C to +85掳C temperature range.
APPLICATIONS
q
BRIDGE AMPLIFIER
q
THERMOCOUPLE AMPLIFIER
q
RTD SENSOR AMPLIFIER
q
MEDICAL INSTRUMENTATION
q
DATA ACQUISITION
V+
7 (13)
鈥?/div>
V
IN
2
(4)
1
(2)
R
G
8
(15)
+
V
IN
3
(5)
Over-Voltage
Protection
A
2
25k鈩?/div>
25k鈩?/div>
25k鈩?/div>
5
(10)
Ref
25k鈩?/div>
A
3
6
(11)
Over-Voltage
Protection
INA114
Feedback
A
1
25k鈩?/div>
25k鈩?/div>
(12)
DIP Connected
Internally
V
O
G=1+
50k鈩?/div>
R
G
4 (7)
DIP
V鈥?/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
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