LT1991
W W U W
ABSOLUTE AXI U RATI GS
(Note 1)
Total Supply Voltage (V+ to V–) ............................... 40V
Input Voltage (Pins P1/M1, Note 2) ....................... ±60V
Input Voltage
Maximum Junction Temperature
DD Package ...................................................... 125°C
MS Package ..................................................... 150°C
Storage Temperature Range
(Other inputs Note 2).............. V+ + 0.2V to V– – 0.2V
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
DD Package .......................................–65°C to 125°C
MS Package ......................................–65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
U W
U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
ORDER PART
NUMBER
TOP VIEW
TOP VIEW
P1
P3
P9
1
2
3
4
5
10 M1
P1
P3
P9
EE
REF
1
2
3
4
5
10 M1
LT1991CDD
LT1991IDD
LT1991ACDD
LT1991AIDD
LT1991CMS
LT1991IMS
LT1991ACMS
LT1991AIMS
9
8
7
6
M3
M9
9
8
7
6
M3
M9
CC
OUT
V
EE
V
CC
V
V
REF
OUT
MS PACKAGE
10-LEAD PLASTIC MSOP
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
DD PART MARKING*
LBMM
MS PART MARKING*
LTQD
TJMAX = 150°C, θJA = 230°C/W
EXPOSED PAD CONNECTED TO VEE PCB
CONNECTION OPTIONAL
TJMAX = 125°C, θJA = 160°C/W
*Temperature and electrical grades are identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
VCM = VREF = half supply, unless otherwise noted.
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. Difference amplifier configuration, VS = 5V, 0V or ±15V;
SYMBOL
PARAMETER
CONDITIONS
V = ±15V, V
MIN
TYP
MAX
UNITS
∆G
Gain Error
= ±10V; R = 10k
OUT L
S
G = 1; LT1991A
G = 1; LT1991
G = 3 or 9; LT1991A
●
●
●
●
±0.04
±0.08
±0.06
±0.12
%
%
%
%
G = 3 or 9; LT1991
GNL
Gain Nonlinearity
V = ±15V; V
= ±10V; R = 10k
●
●
1
10
3
ppm
S
OUT
L
∆G/∆T
CMRR
Gain Drift vs Temperature (Note 6)
V = ±15V; V
= ±10V; R = 10k
0.3
ppm/°C
S
OUT
L
Common Mode Rejection Ratio,
Referred to Inputs (RTI)
V = ±15V; V = ±15.2V
S CM
G = 9; LT1991A
G = 3; LT1991A
G = 1; LT1991A
Any Gain; LT1991
●
●
●
●
80
75
75
60
100
93
90
dB
dB
dB
dB
70
V
Input Voltage Range (Note 7)
P1/M1 Inputs
CM
V = ±15V; V = 0V
●
●
●
–28
–0.5
0.75
27.6
5.1
2.35
V
V
V
S
REF
V = 5V, 0V; V
= 2.5V
= 1.25V
S
REF
REF
V = 3V, 0V; V
S
1991fb
2
Linear Systems [ Linear Systems ]
