LT1996 Linear Technology, LT1996 Datasheet - Page 5

• Manufacturer Part Number: LT1996
• Description: 100uA Gain Selectable Amplifier
• Manufacturer: Linear Technology

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ELECTRICAL CHARACTERISTICS
Note 4: Both the LT1996C and LT1996I are guaranteed functional over the
–40°C to 85°C temperature range.
Note 5: The LT1996C is guaranteed to meet the specified performance
from 0°C to 70°C and is designed, characterized and expected to meet
specified performance from –40°C to 85°C but is not tested or QA
sampled at these temperatures. The LT1996I is guaranteed to meet
specified performance from –40°C to 85°C.
Note 6: This parameter is not 100% tested.
Note 7: Input voltage range is guaranteed by the CMRR test at V
For the other voltages, this parameter is guaranteed by design and through
correlation with the ±15V test. See the Applications Information section to
TYPICAL PERFOR A CE CHARACTERISTICS
–1000
4
–100
–200
–300
–400
–500
–600
–700
–800
–900
200
175
150
125
100
V
75
50
25
CC
0
0
0
Supply Current vs Supply Voltage
Output Voltage Swing vs Load
Current (Output High)
2
1
T
A
T
A
4
2
= 25°C
= 85°C
SUPPLY VOLTAGE (±V)
LOAD CURRENT (mA)
6
3
T
A
8
4
= 25°C
10
5
T
A
= 85°C
12
6
T
14
A
7
= –40°C
T
V
A
W
S
16
= –40°C
8
= 5V, 0V
18
1996 G01
1996 G04
9
U
20
10
V
60
40
20
25
20
15
10
EE
5
0
–50
–50
Output Voltage Swing vs
Temperature
Output Short-Circuit Current vs
Temperature
V
NO LOAD
V
S
OUTPUT LOW
(LEFT AXIS)
S
= 5V, 0V
–25
= 5V, 0V
–25
S
SOURCING
= ±15V.
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
25
25
determine the valid input voltage range under various operating
conditions.
Note 8: Offset voltage, offset voltage drift and PSRR are defined as
referred to the internal op amp. You can calculate output offset as follows.
In the case of balanced source resistance, V
I
resistance at the op amp positive and negative terminal respectively.
Note 9: Resistors connected to the minus inputs. Resistor matching is not
tested directly, but is guaranteed by the gain error test.
Note 10: Input impedance is tested by a combination of direct
measurements and correlation to the CMRR and gain error tests.
50
OS
50
SINKING
OUTPUT HIGH
(RIGHT AXIS)
• 450k + I
75
75
100
100
B
1996 G02
1996 G05
• 450k • (1 – R
(Difference Amplifier Configuration)
125
125
V
–20
–40
–60
CC
1400
1200
1000
–100
–150
P
800
600
400
200
150
100
–50
V
/R
50
EE
0
N
0
9
Output Voltage Swing vs Load
Current (Output Low)
Input Offset Voltage vs
Difference Gain
) where R
V
S
18 27
1
= 5V, 0V
2
36
T
OS, OUT
P
A
LOAD CURRENT (mA)
3
= 25°C
and R
45
4
54
GAIN (V/V)
V
REPRESENTATIVE PARTS
= V
N
S
63
are the total
5
= 5V, 0V
OS
T
A
72
LT1996
• Noise Gain +
6
= 85°C
81 90 99
7
T
A
= –40°C
8
108
1996 G03
1996 G06
9
5
1996f
117
10