LT1187 Linear Technology, LT1187 Datasheet - Page 4

• Manufacturer Part Number: LT1187
• Description: Low Power Video Difference Amplifier
• Manufacturer: Linear Technology

– +
LT1187
V
SYMBOL
V
I
I
CMRR
PSRR
V
G
I
I
5V
SYMBOL
V
I
I
CMRR
V
I
I
Note 1: A heat sink may be required to keep the junction temperature below
absolute maximum when the output is shorted continuously.
Note 2: T
P
Note 3: When R
R
that (R
Note 4: V
pair, and is input referred.
Note 5: V
pin 3) for which the output can respond.
4
V
OS
B
S
S/D
OS
B
S
S/D
D
OS
OUT
OS
OUT
L
S
V
E
S
V
+
5V
OS
OS
according to the following formulas:
= 300 is specified, then an additional 430 is added to the output such
= 5V, V
= 5V, V
/ T
/ T
LT1187MJ8,LT1187CJ8:
LT1187CN8:
LT1187CS8:
FB1
ELECTRICAL C
J
OS
IN LIM
+ R
is calculated from the ambient temperature T
ELECTRICAL C
measured at the output (pin 6) is the contribution from both input
S
FB2
REF
–
is the maximum voltage between –V
L
= 0V, V
PARAMETER
Input Offset Voltage
Input V
Input Offset Current
Input Bias Current
Input Voltage Range
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Output Voltage Swing
Gain Error
Supply Current
Shutdown Supply Current
Shutdown Pin Current
PARAMETER
Input Offset Voltage
Input V
Input Offset Current
Input Bias Current
Input Voltage Range
Common-Mode Rejection Ratio
Output Voltage Swing
Supply Current
Shutdown Supply Current
Shutdown Pin Current
) in parallel with 430 is R
= 1k is specified, the load resistor is R
= 0V, R
OS
OS
REF
Drift
Drift
FB1
= 2.5V, R
= 900 from pins 6 to 8, R
T
T
T
J
J
J
= T
= T
= T
HARA TERISTICS
A
A
A
FB1
+ (P
+ (P
+ (P
HARA TERISTICS
L
= 900 from pins 6 to 8, R
= 300 .
D
D
D
100 C/W)
100 C/W)
150 C/W)
C
IN
and +V
C
A
FB1
and power dissipation
+ R
IN
CONDITIONS
Either Input, (Note 4)
Either Input
Either Input
V
V
V
V
V
V
Pin 5 at V
Pin 5 at V
CONDITIONS
Either Input, (Note 4)
SOIC Package
Either Input
Either Input
V
R
(Note 3)
Pin 5 at V
Pin 5 at V
FB2
CM
S
S
S
S
O
CM
L
(pin 2 and
FB2
= 2.375V to 8V
= 5V, R
= 8V, R
= 8V, R
= 1V, A
= 300 to Ground
, but when
= –2.5V to 3.5V
= 2.0V to 3.5V
= 100 from pin 8 to ground, R
–
–
–
–
, (Note 11)
, (Note 11)
V
L
L
L
FB2
= 1k, A
= 1k, A
= 300 , A
= 10, R
= 100 from pin 8 to V
0 C T
0 C T
V
V
L
Note 6: Slew rate is measured between 0.5V on the output, with a V
of 0.75V, A
Note 7: Full power bandwidth is calculated from the slew rate measurement:
FPBW = SR/2 Vp.
Note 8: Settling time measurement techniques are shown in “Take the
Guesswork Out of Settling Time Measurements,” EDN, September 19, 1985.
Note 9: NTSC (3.58MHz).
Note 10: AC parameters are 100% tested on the ceramic and plastic DIP
packaged parts (J8 and N8 suffix) and are sample tested on every lot of the SO
packaged parts (S8 suffix).
Note 11: See Application section for shutdown at elevated temperatures. Do
not operate shutdown above T
= 50
= 50
= 1k
V
A
= 50, (Note 3)
A
70 C, (Note 3)
V
V
70 C, (Note 3)
V
OUT
OUT
= 3 and R
High
Low
REF
L
, R
L
= 1k.
= R
L
= R
FB1
J
> 125 C.
FB1
+ R
+ R
– 2.5
MIN
MIN
2.0
3.5
70
65
70
FB2
3.7
6.6
6.4
FB2
= 1k, C
= 1k, C
LT1187C
LT1187C
0.15
TYP
100
TYP
100
2.0
9.0
0.2
0.2
0.8
2.0
2.0
9.0
0.2
4.0
0.8
85
13
12
4.0
7.0
0.5
6.8
5
0.5
5
L
L
10pF, pin 5 open.
10pF, pin 5 open.
MAX
MAX
12.0
13.0
1.5
3.5
1.0
1.5
1.5
3.5
0.4
1.5
12
17
25
16
25
3.5
3.5
IN
UNITS
UNITS
step
V/ C
V/ C
mV
mA
mA
mV
mV
mA
mA
dB
dB
dB
%
A
A
V
V
A
A
A
V
V
A