Datasheet

LT1999-10/LT1999-20/
LT1999-50
3
1999fb
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, 0°C < T
A
< 70°C for C-grade parts, –40°C < T
A
< 85°C for I-grade parts, and –40°C < T
A
< 125°C for H-grade parts,
otherwise specifications are at T
A
= 25°C. V
+
= 5V, GND = 0V, V
CM
= 12V, V
REF
= floating, V
SHDN
= floating, unless otherwise specified.
See Figure 2.
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT1999CS8-20#PBF LT1999CS8-20#TRPBF 199920 8-Lead Plastic SO 0°C to 70°C
LT1999IS8-20#PBF LT1999IS8-20#TRPBF 199920 8-Lead Plastic SO –40°C to 85°C
LT1999HS8-20#PBF LT1999HS8-20#TRPBF 199920 8-Lead Plastic SO –40°C to 125°C
LT1999MPS8-20#PBF LT1999MPS8-20#TRPBF 99MP20 8-Lead Plastic SO –55°C to 150°C
LT1999CMS8-50#PBF LT1999CMS8-50#TRPBF LTFPC 8-Lead Plastic MSOP 0°C to 70°C
LT1999IMS8-50#PBF LT1999IMS8-50#TRPBF LTFPC 8-Lead Plastic MSOP –40°C to 85°C
LT1999HMS8-50#PBF LT1999HMS8-50#TRPBF LTFPC 8-Lead Plastic MSOP –40°C to 125°C
LT1999MPMS8-50#PBF LT1999MPMS8-50#TRPBF LTFQR 8-Lead Plastic MSOP –55°C to 150°C
LT1999CS8-50#PBF LT1999CS8-50#TRPBF 199950 8-Lead Plastic SO 0°C to 70°C
LT1999IS8-50#PBF LT1999IS8-50#TRPBF 199950 8-Lead Plastic SO –40°C to 85°C
LT1999HS8-50#PBF LT1999HS8-50#TRPBF 199950 8-Lead Plastic SO –40°C to 125°C
LT1999MPS8-50#PBF LT1999MPS8-50#TRPBF 99MP50 8-Lead Plastic SO –55°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
orDer inForMaTion
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
SENSE
Full-Scale Input Sense Voltage (Note 7)
V
SENSE
= V
+IN
– V
–IN
LT1999-10
LT1999-20
LT1999-50
l
l
l
–0.35
–0.2
–0.08
0.35
0.2
0.08
V
V
V
V
CM
CM Input Voltage Range
l
–5 80 V
R
IN(DIFF)
Differential Input Impedance ΔV
INDIFF
= ±2V/Gain
l
6.4 8 9.6 kΩ
R
INCM
CM Input Impedance ΔV
CM
= 5.5V to 80V
ΔV
CM
= –5V to 4.5V
l
l
5
3.6
20
4.8 6
MΩ
kΩ
V
OSI
Input Referred Voltage Offset
l
–750
–1500
±500 750
1500
μV
μV
ΔV
OSI
/ΔT Input Referred Voltage Offset Drift 5 μV/°C
A
V
Gain LT1999-10
LT1999-20
LT1999-50
l
l
l
9.95
19.9
48.75
10
20
50
10.05
20.1
50.25
V/V
V/V
V/V
A
V
Error Gain Error ΔV
OUT
= ±2V
l
–0.5 ±0.2 0.5 %
I
B
Input Bias Current
I(+IN) = I(–IN)
(Note 8)
V
CM
> 5.5V
V
CM
= –5V
V
SHDN
= 0.5V, 0V < V
CM
< 80V
l
l
l
100
–2.35
137.5
–1.95
0.001
175
–1.5
2.5
μA
mA
μA
I
OS
Input Offset Current
I
OS
= I(+IN) – I(–IN)
(Note 8)
V
CM
> 5.5V
V
CM
= –5V
V
SHDN
= 0.5V, 0V < V
CM
< 80V
l
l
l
–1
–10
–2.5
1
10
2.5
μA
μA
μA
PSRR Supply Rejection Ratio V
+
= 4.5V to 5.5V
l
68 77 dB