LT1990 Linear Technology, LT1990 Datasheet - Page 2

• Manufacturer Part Number: LT1990
• Description: Difference Amplifier
• Manufacturer: Linear Technology

ABSOLUTE AXI U RATI GS
(Notes 1, 2)
3V/5V ELECTRICAL CHARACTERISTICS
LT1990
SYMBOL
G
∆G
GNL
V
V
e
2
Total Supply Voltage (V
Input Voltage Range
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 4) ...–40°C to 85°C
Specified Temperature Range (Note 5) ....–40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec.)................. 300°C
V
CMRR
n
CM
OS
S
= 3V, 0V; V
Continuous ...................................................... ±250V
Transient (0.1s) ............................................... ±350V
Differential ....................................................... ±500V
PARAMETER
Gain
Gain Error
Gain Nonlinearity
Input Voltage Range
Common Mode Rejection Ratio
RTI (Referred to Input)
Offset Voltage, RTI
Input Noise Voltage, RTI
Noise Voltage Density, RTI
S
= 5V, 0V; R
W
L
+
= 10k, V
to V
W W
–
) ............................... 36V
CM
= V
REF
= half supply, G = 1, 10, T
CONDITIONS
Pins 5 and 8 = Open
Pins 5 and 8 = GND
V
LT1990, G = 1
LT1990A, G = 1
G = 10, V
V
G = 1
G = 10
Guaranteed by CMRR
V
V
V
V
V
LT1990
LT1990A
V
V
LT1990
LT1990A
V
V
LT1990
LT1990A
G = 1, 10
f
f
O
O
U
OUT
S
S
S
S
S
CM
S
CM
S
CM
= 0.1Hz to 10Hz
= 1kHz
= 5V, 0V; V
= 3V, 0V; V
= 5V, 0V; V
= 5V, 0V; V
= 3V, 0V (Note 7)
= 5V, 0V
= 5V, 0V (Note 7)
= –5V to 25V, V
= –5V to 80V, V
= –38V to 47V, V
= 0.5V to (+Vs) –0.75V
S
= 5V, 0V
OUT
REF
REF
REF
= 1.25V
= 1.25V
= 2.5V
= 0.5V to 4.25V
REF
REF
REF
PACKAGE/ORDER I FOR ATIO
= 1.25V
= 1.25V
= 2.5V
A
REF
–IN
+IN
V
= 25°C, unless otherwise noted. (Note 6)
–
T
JMAX
1
2
3
4
8-LEAD PLASTIC SO
= 150°C, θ
S8 PACKAGE
TOP VIEW
JA
= 190°C/W
8
7
6
5
GAIN1
V
OUT
GAIN2
+
MIN
–38
–5
–5
60
70
60
70
60
70
U
ORDER PART
LT1990CS8
LT1990IS8
LT1990ACS8
LT1990AIS8
0.001
MARKING
0.07
0.01
TYP
S8 PART
0.4
0.2
0.8
NUMBER
10
68
75
68
75
68
75
22
1
1
1990
1990A
1990I
1990AI
W
0.005
MAX
0.28
0.6
0.8
25
80
47
3
µV/√Hz
UNITS
µV
U
1990f
mV
P-P
dB
dB
dB
dB
dB
dB
%
%
%
%
%
V
V
V