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).
A single external resistor sets any gain from 1 to 10,000.
Internal input protection can withstand up to
鹵40V
without damage.
The INA2128 is laser trimmed for very low offset
voltage (50碌V), drift (0.5碌V/擄C) and high common-
mode rejection (120dB at G
鈮?/div>
100). It operates with
power supplies as low as
鹵2.25V,
and quiescent current
is only 700碌A(chǔ) per IA鈥攊deal for battery operated and
multiple-channel systems.
The INA2128 is available in 16-pin plastic DIP, and
SOL-16 surface-mount packages, specified for the
鈥?0擄C to +85擄C temperature range.
V+
9
V
INA
鈥?/div>
APPLICATIONS
q
SENSOR AMPLIFIER
THERMOCOUPLE, RTD, BRIDGE
q
MEDICAL INSTRUMENTATION
q
MULTIPLE-CHANNEL SYSTEMS
q
BATTERY OPERATED EQUIPMENT
1
3
Over-Voltage
Protection
INA2128
A
1A
40k鈩?/div>
25k鈩?/div>
A
3A
6
40k鈩?/div>
7
G
A
= 1 + 50k鈩?/div>
R
GA
V
OA
R
GA
4
+
V
INA
鈥?/div>
25k鈩?/div>
Over-Voltage
Protection
Over-Voltage
Protection
2
A
2A
40k鈩?/div>
40k鈩?/div>
5
Ref
A
V
INB
16
14
A
1B
40k鈩?/div>
25k鈩?/div>
A
3B
40k鈩?/div>
10
G
B
= 1 +
11
50k鈩?/div>
R
GB
R
GB
13
+
V
INB
V
OB
25k鈩?/div>
Over-Voltage
Protection
15
A
2B
40k鈩?/div>
8
V鈥?/div>
40k鈩?/div>
12
Ref
B
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
