LT1991 Linear Technology, LT1991 Datasheet - Page 4

• Manufacturer Part Number: LT1991
• Description: Precision / 100uA Gain Selectable Amplifier
• Manufacturer: Linear Technology

LT1991
ELECTRICAL CHARACTERISTICS
SYMBOL
R
ΔR
ΔR/ΔT
PSRR
V
I
BW
GBWP
t
t
SR
I
temperature range of 0°C to 70°C for C-grade parts and –40°C to 85°C for I-grade parts, otherwise specifi cations are at T
Difference amplifi er confi guration, V
4
SC
r
s
s
, t
IN
OUT
f
PARAMETER
Input Impedance (Note 10)
Resistor Matching (Note 9)
Resistor Temperature Coeffi cient (Note 6) Resistor Matching
Power Supply Rejection Ratio
Minimum Supply Voltage
Output Voltage Swing (to Either Rail)
Output Short-Circuit Current (Sourcing)
Output Short-Circuit Current (Sinking)
–3dB Bandwidth
Op Amp Gain Bandwidth Product
Rise Time, Fall Time
Settling Time to 0.01%
Slew Rate
Supply Current
S
= 5V, 0V or ±15V; V
CONDITIONS
P1 (M1 = Ground)
P3 (M3 = Ground)
P9 (M9 = Ground)
M1 (P1 = Ground)
M3 (P3 = Ground)
M9 (P9 = Ground)
450k Resistors, LT1991A
Other Resistors, LT1991A
450k Resistors, LT1991
Other Resistors, LT1991
Absolute Value
V
No Load
V
V
V
1mA Load
V
V
V
Drive Output Positive;
Short Output to Ground
Drive Output Negative;
Short Output to V
G = 1
G = 3
G = 9
f = 10kHz
G = 1; 0.1V Step; 10% to 90%
G = 9; 0.1V Step; 10% to 90%
G = 1; V
G = 1; V
G = 1; V
G = 1; V
V
V
V
V
S
S
S
S
S
S
S
S
S
S
S
CM
= ±1.35V to ±18V (Note 8)
= 5V, 0V
= 5V, 0V
= ±15V
= 5V, 0V
= 5V, 0V
= ±15V
= 5V, 0V; V
= ±15V; V
= 5V, 0V
= ±15V
The
= V
S
S
S
S
l
REF
= 5V, 0V; 2V Step
= 5V, 0V; –2V Step
= ±15V, 10V Step
= ±15V, –10V Step
denotes the specifi cations which apply over the operating
OUT
= half supply, unless otherwise noted.
OUT
= ±10V; V
S
= 1V to 4V
or Midsupply
MEAS
= ±5V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
0.06
0.08
MIN
630
420
350
315
105
105
35
8
4
8
4
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0.01
0.02
0.02
0.04
0.12
0.12
TYP
900
600
500
450
150
–30
135
150
110
560
114
100
130
0.3
2.4
50
40
12
21
78
40
42
48
74
3
8
MAX
1170
0.04
0.06
0.08
0.12
780
650
585
195
110
225
275
300
110
150
160
210
A
2.7
65
55
65
3
= 25°C.
ppm/°C
ppm/°C
UNITS
1991fg
V/μs
V/μs
kHz
kHz
kHz
kHz
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
dB
μA
μA
μA
μA
μs
μs
μs
μs
μs
μs
%
%
%
%
V