Datasheet

LT1990
2
1990fb
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
S8 PART MARKING
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
G Gain Pins 5 and 8 = Open 1
Pins 5 and 8 = V
REF
10
∆G Gain Error V
OUT
= 0.5V to (+Vs) –0.75V
LT1990, G = 1 0.4 0.6 %
LT1990A, G = 1 0.07 0.28 %
G = 10, V
S
= 5V, 0V 0.2 0.8 %
GNL Gain Nonlinearity V
S
= 5V, 0V; V
OUT
= 0.5V to 4.25V
G = 1 0.001 0.005 %
G = 10 0.01 %
V
CM
Input Voltage Range Guaranteed by CMRR
V
S
= 3V, 0V; V
REF
= 1.25V –5 25 V
V
S
= 5V, 0V; V
REF
= 1.25V –5 80 V
V
S
= 5V, 0V; V
REF
= 2.5V –38 47 V
CMRR Common Mode Rejection Ratio V
S
= 3V, 0V (Note 7)
RTI (Referred to Input) V
CM
= –5V to 25V, V
REF
= 1.25V
LT1990 60 68 dB
LT1990A 70 75 dB
V
S
= 5V, 0V
V
CM
= –5V to 80V, V
REF
= 1.25V
LT1990 60 68 dB
LT1990A 70 75 dB
V
S
= 5V, 0V (Note 7)
V
CM
= –38V to 47V, V
REF
= 2.5V
LT1990 60 68 dB
LT1990A 70 75 dB
Total Supply Voltage (V
+
to V
–
) ............................... 36V
Input Voltage Range
Continuous ...................................................... ±250V
Transient (0.1s) ............................................... ±350V
Differential ....................................................... ±500V
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 4)
LT1990C .............................................. –40°C to 85°C
LT1990I ............................................... –40°C to 85°C
LT1990H ........................................... –40°C to 125°C
Specified Temperature Range (Note 5)
LT1990C .............................................. –40°C to 85°C
LT1990I ............................................... –40°C to 85°C
LT1990H ........................................... –40°C to 125°C
Junction Temperature........................................... 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec.)................. 300°C
ORDER PART NUMBER
1990
1990I
1990H
1990A
1990AI
1990AH
LT1990CS8
LT1990IS8
LT1990HS8
LT1990ACS8
LT1990AIS8
LT1990AHS8
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
3V/5V ELECTRICAL CHARACTERISTICS
V
S
= 3V, 0V; V
S
= 5V, 0V; R
L
= 10k, V
CM
= V
REF
= half supply, G = 1, 10, T
A
= 25°C, unless otherwise noted. (Note 6)
(Notes 1, 2)
Consult LTC Marketing for parts specified with wider operating temperature ranges.
T
JMAX
= 150°C, θ
JA
= 190°C/W
TOP VIEW
GAIN1
V
+
OUT
GAIN2
REF
–IN
+IN
V
–
S8 PACKAGE
8-LEAD PLASTIC SO
1
2
3
4
8
7
6
5