LT1195
Low Power, High Speed
Operational Amplifier
FEATURES
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DESCRIPTIO
Gain-Bandwidth Product: 50MHz
Unity-Gain Stable
Slew Rate: 165V/µs
Output Current:
±20mA
Low Supply Current: 12mA
High Open-Loop Gain: 7.5V/mV
Low Cost
Single Supply 5V Operation
Industry Standard Pinout
Output Shutdown
The LT
®
1195 is a video operational amplifier optimized for
operation on single 5V and
±5V
supplies. Unlike many
high speed amplifiers, the LT1195 features high open-
loop gain, over 75dB, and the ability to drive heavy loads
to a full power bandwidth of 8.5 MHz at 6V
P-P
. The LT1195
has a unity-gain stable bandwidth of 50MHz, a 60° phase
margin and consumes only 12mA of supply current,
making it extremely easy to use.
Because the LT1195 is a true operational amplifier, it is an
ideal choice for wideband signal conditioning, fast
integrators, peak detectors, active filters, and applications
requiring speed, accuracy, and low cost.
The LT1195 is a low power version of the popular LT1190,
and is available in 8-pin miniDIPs and SO packages with
standard pinouts. The normally unused Pin 5 is used for a
shutdown feature that shuts off the output and reduces
power dissipation to a mere 15mW.
, LTC and LT are registered trademarks of Linear Technology Corporation
APPLICATIO S
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Video Cable Drivers
Video Signal Processing
Fast Peak Detectors
Fast Integrators
Video Cable Drivers
Pulse Amplifiers
TYPICAL APPLICATIO
Fast Pulse Detector
R
I
1k
V
IN
R
S
50Ω
C
I
60pF
5V
3
Pulse Detector Response
+
–
7
LT1195
6
D1
1N5712
OUTPUT
2
4
–5V
R
L
10k
–5V
C
L
1000pF
R
B
10k
–5V
D2
1N5712
1195 TA01
U
INPUT
1195TAO2
U
U
1195fa
1
LT1195
ABSOLUTE
(Note 1)
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
TOP VIEW
BAL 1
–IN 2
+IN 3
V
–
4
8
7
6
5
BAL
V
+
OUT
S/D
Total Supply Voltage (V
+
to V
–
) ............................... 18V
Differential Input Voltage .........................................
±6V
Input Voltage ...........................................................
±V
S
Output Short-Circuit Duration (Note 2) ......... Continuous
Operating Temperature Range
LT1195M
(OBSOLETE)
................... –55°C to 125°C
LT1195C ................................................ 0°C to 70°C
Junction Temperature (Note 3)
Plastic Package (CN8, CS8) ............................ 150°C
Ceramic Package (CJ8, MJ8)
(OBSOLETE)
..... 175°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ORDER PART
NUMBER
LT1195CN8
LT1195CS8
S8 PART MARKING
1195
ORDER PART
NUMBER
LT1195MJ8
LT1195CJ8
S8 PACKAGE
N8 PACKAGE
8-LEAD PLASTIC SO
8-LEAD PDIP
T
JMAX
= 150°C,
θ
JA
= 100°C/ W (N8)
T
JMAX
= 150°C,
θ
JA
= 150°C/ W (S8)
J8 PACKAGE
8-LEAD CERDIP
T
JMAX
= 150°C,
θ
JA
= 100°C/ W (J8)
OBSOLETE PACKAGE
Consider the N8 or S8 Package for Alternate Source
Consult LTC Marketing for parts specified with wider operating temperature ranges.
+
5V ELECTRICAL CHARACTERISTICS
–
V =
±5V,
C
≤
10pF, Pin 5 open circuit, unless otherwise noted.
S
L
T
A
= 25°C
LT1195M/C
MIN
TYP
3.0
3.0
0.2
±0.5
70
2
230
20
2.2
–2.5
60
85
60
85
2.0
7.5
0.5
1.5
11.0
±3.8
±4.0
±6.7
±7.0
110
165
8.75
50
125
170
3.4
2.5
22
220
1.25
0.86
SYMBOL
V
OS
I
OS
I
B
e
n
i
n
R
IN
C
IN
CMRR
PSRR
A
VOL
PARAMETER
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Current
Input Resistance Differential Mode
Common Mode
Input Capacitance
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
CONDITIONS
J8, N8 Package
S8 Package
MAX
8.0
10.0
1.0
±2.0
f
O
= 10kHz
f
O
= 10kHz
V
OUT
SR
FPBW
GBW
t
r1
, t
f1
t
r2
, t
f2
t
PD
t
S
Diff A
V
Diff Ph
Output Voltage Swing
Slew Rate
Full Power Bandwidth
Gain-Bandwidth Product
Rise Time, Fall Time
Rise Time, Fall Time
Propagation Delay
Overshoot
Settling Time
Differential Gain
Differential Phase
A
V
= 1
(Note 4)
V
CM
= –2.5 to 3.5V
V
S
=
±2.375V
to
±8V
R
L
= 1k, V
OUT
=
±3V
R
L
= 150Ω, V
OUT
=
±3V
V
S
=
±8V,
R
L
= 1k, V
OUT
=
±5V
V
S
=
±5V,
R
L
= 1k
V
S
=
±8V,
R
L
= 1k
A
V
= –1, R
L
= 1k (Note 5, 10)
V
OUT
= 6V
P-P
(Note 6)
A
V
= 50, V
OUT
=
±1.5V,
20% to 80% (Note 10)
A
V
= 1, V
OUT
=
±125mV,
10% to 90%
A
V
= 1, V
OUT
=
±125mV,
50% to 50%
A
V
= 1, V
OUT
=
±125mV
3V Step, 0.1% (Note 7)
R
L
= 150Ω, A
V
= 2 (Note 8)
R
L
= 150Ω, A
V
= 2 (Note 8)
3.5
285
UNITS
mV
mV
µA
µA
nV√Hz
pA√Hz
kΩ
MΩ
pF
V
dB
dB
V/mV
V/mV
V/mV
V
V
V/µs
MHz
MHz
ns
ns
ns
%
ns
%
DEG
P-P
1195fa
2
U
W
U
U
W W
W
LT1195
+
5V ELECTRICAL CHARACTERISTICS
–
V
S
=
±5V,
C
L
≤
10pF, Pin 5 open circuit, unless otherwise noted.
SYMBOL
I
S
I
S/D
t
ON
t
OFF
PARAMETER
Supply Current
Shutdown Supply Current
Shutdown Pin Current
Turn-On Time
Turn-Off Time
CONDITIONS
Pin 5 at V
–
Pin 5 at V
–
Pin 5 from V
–
to Ground, R
L
= 1k
Pin 5 from Ground to V
–
, R
L
= 1k
MIN
LT1195M/C
TYP
MAX
12
16
0.8
1.5
5
25
160
700
UNITS
mA
mA
µA
ns
ns
T
A
= 25°C
5V ELECTRICAL CHARACTERISTICS
SYMBOL
V
OS
I
OS
I
B
CMRR
A
VOL
V
OUT
SR
GBW
I
S
I
S/D
PARAMETER
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Large-Signal Voltage Gain
Output Voltage Swing
Slew Rate
Gain-Bandwidth Product
Supply Current
Shutdown Supply Current
Shutdown Pin Current
(Note 4)
CONDITIONS
J8, N8 Package
S8 Package
T
A
= 25°C
V
S+
= 5V, V
S –
, = OV, V
CM
= 2.5V, C
L
≤
10pF, Pin 5 open circuit, unless otherwise noted.
MIN
LT1195M/C
TYP
MAX
3.0
3.0
0.2
±0.5
2.0
60
0.5
3.5
85
3.0
3.8
0.25
140
45
11
0.8
5
15
1.5
25
0.4
V
CM
= 2V to 3.5V
R
L
= 150Ω to Ground, V
OUT
= 1V to 3V
R
L
= 150Ω to Ground
A
V
= –1, V
OUT
= 1V to 3V
V
OUT
High
V
OUT
Low
9.0
11.0
1.0
±2.0
3.5
UNITS
mV
mV
µA
µA
V
dB
V/mV
V
V
V/µs
MHz
mA
mA
µA
Pin 5 at V
–
Pin 5 at V
–
+
5V ELECTRICAL CHARACTERISTICS
–
V
S
=
±5V,
Pin 5 open circuit, unless otherwise noted.
SYMBOL
V
OS
∆V
OS
/∆T
I
OS
I
B
CMRR
PSRR
A
VOL
V
OUT
I
S
I
S/D
PARAMETER
Input Offset Voltage
Input V
OS
Drift
Input Offset Current
Input Bias Current
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Output Voltage Swing
Supply Current
Shutdown Supply Current
Shutdown Pin Current
CONDITIONS
–55°C
≤
T
A
≤
125°C, (Note 11)
MIN
V
CM
= –2.5V to 3.5V
V
S
=
±2.375V
to
±8V
R
L
= 1k, V
OUT
=
±3V
R
L
= 150Ω, V
OUT
=
±3V
R
L
= 1k
Pin
Pin 5 at V
–
5 at V
–
, (Note 9)
55
55
1.50
0.25
±3.7
LT1195M
TYP
3.0
17
0.2
±0.5
85
80
5.0
0.8
±3.9
12
0.8
5
MAX
15.0
2.0
±2.5
18
2.5
25
UNITS
mV
µV/°C
µA
µA
dB
dB
V/mV
V/mV
V
mA
mA
µA
1195fa
3
LT1195
+
5V ELECTRICAL CHARACTERISTICS
–
V
S
=
±5V,
Pin 5 open circuit, unless otherwise noted.
PARAMETER
Input Offset Voltage
Input V
OS
Drift
Input Offset Current
Input Bias Current
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Output Voltage Swing
Supply Current
Shutdown Supply Current
Shutdown Pin Current
SYMBOL
V
OS
∆V
OS
/∆T
I
OS
I
B
CMRR
PSRR
A
VOL
V
OUT
I
S
I
S/D
CONDITIONS
J8, N8 Package
S8 Package
0°C
≤
T
A
≤
70°C
LT1195C
TYP
3.0
3.0
12
0.2
±0.5
85
90
7.5
1.5
±3.9
12
0.9
5
MIN
MAX
10.0
15.0
1.7
±2.5
V
CM
= –2.5V to 3.5V
V
S
=
±2.375V
to
±5V
R
L
= 1k, V
OUT
=
±3V
R
L
= 150Ω, V
OUT
=
±3V
R
L
= 1k
Pin 5 at V
–
(Note 9)
Pin 5 at V
–
60
60
2.0
0.3
±3.7
17
2.0
25
UNITS
mV
mV
µV/°C
µA
µA
dB
dB
V/mV
V/mV
V
mA
mA
µA
5V ELECTRICAL CHARACTERISTICS
V
S+
= 5V, V
S–
= OV, Pin 5 open circuit, unless otherwise noted.
SYMBOL
V
OS
∆V
OS
/∆T
I
OS
I
B
CMRR
V
OUT
I
S
I
S/D
PARAMETER
Input Offset Voltage
Input V
OS
Drift
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Output Voltage Swing
Supply Current
Shutdown Supply Current
Shutdown Pin Current
CONDITIONS
J8, N8 Package
S8 Package
0°C
≤
T
A
≤
70°C
LT1195C
TYP
1.0
1.0
15
0.2
±0.5
2.0
60
3.5
85
3.75
0.15
12
0.9
5
MIN
MAX
10.0
15.0
1.7
±2.5
3.5
UNITS
mV
mV
µV/°C
µA
µA
V
dB
V
V
mA
mA
µA
(Note 4)
V
CM
= 2V to 3.5V
R
L
= 150Ω to Ground
V
OUT
High
V
OUT
Low
Pin 5 at V
–
(Note 9)
Pin 5 at V
–
0.4
16
2.0
25
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
A heat sink may be required to keep the junction temperature
below absolute maximum when the output is shorted continuously.
Note 3:
T
J
is calculated from the ambient temperature T
A
and power
dissipation P
D
according to the following formats:
LT1195MJ8/LT1195CJ8: T
J
= T
A
+ (P
D
• 100°C/ W)
LT1195N:
T
J
= T
A
+ (P
D
• 100°C/ W)
LT1195CS:
T
J
= T
A
+ (P
D
• 150°C/ W)
Note 4:
Exceeding the input common mode range may cause the output
to invert.
Note 5:
Slew rate is measured between
±1V
on the output, with
±3V
input
step.
Note 6:
Full power bandwidth is calculated from the slew rate
measurement: FPBW = SR/2πV
P.
Note 7:
Settling time measurement techniques are shown in “Take the
Guesswork Out of Settling Time Measurements,” EDN, September 19, 1985.
Note 8:
NTSC (3.58MHz). For R
L
= 1k, Diff A
V
= 0.3%, Diff Ph = 0.35°.
Note 9:
See Applications Information section for shutdown at elevated
temperatures. Do not operate the shutdown above T
J
> 125°C.
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:
Do not operate at A
V
< 2 for T
A
< 0°C.
1195fa
4
LT1195
TYPICAL PERFOR A CE CHARACTERISTICS
Input Bias Current vs
Common Mode Voltage
3.0
V
S
=
±5V
2.5
INPUT BIAS CURRENT (
µ
A)
2.0
1.5
1.0
0.5
0
–55°C
25°C
125°C
–5 –4 –3 –2 –1 0 1 2 3
COMMON MODE VOLTAGE (V)
4
5
COMMON MODE RANGE (V)
INPUT BIAS CURRENT (nA)
–0.5
Equivalent Input Noise Voltage
vs Frequency
V
S
=
±5V
T
A
= 25°C
R
S
= 0Ω
EQUIVALENT INPUT NOISE CURRENT (pA/√Hz)
EQUIVALENT INPUT NOISE VOLTAGE (nV/√Hz)
600
500
400
300
200
100
0
10
100
1k
10k
FREQUENCY (Hz)
100k
1195 G04
10
8
6
4
2
10
100
1k
10k
FREQUENCY (Hz)
100k
1195 G05
SUPPLY CURRENT (mA)
Shutdown Supply Current
vs Temperature
6
V
S
=
±5V
SHUTDOWN SUPPLY CURRENT (mA)
5
4
3
2
1
V
S/D
= –V
EE
0
–50
–5
5
V
S/D
= –V
EE
+ 0.6V
OUTPUT VOLTAGE SWING (V)
3
V
S/D
= –V
EE
+ 0.4V
V
S/D
= –V
EE
+ 0.2V
1
OPEN-LOOP GAIN (V/V)
–25
0
25
75
50
TEMPERATURE (°C)
U W
1195 G01
Input Bias Current vs
Temperature
100
V
S
=
±5V
0
+I
B
V
+
–0.5
–1.0
–1.5
–2.0
Common Mode Voltage vs
Temperature
V
+
= 1.8V TO 9V
–100
–I
B
–200
I
OS
–300
2.0
1.5
1.0
0.5
V
–
–50
V
+
= –1.8V TO –9V
–400
–50
–25
0
25
75
50
TEMPERATURE (°C)
100
125
–25
0
25
50
75
TEMPERATURE (°C)
100
125
1195 G02
1195 G03
Equivalent Input Noise Current
vs Frequency
14
12
V
S
=
±5V
T
A
= 25°C
R
S
= 100k
14
16
Supply Current vs Supply Voltage
–55°C
25°C
12
125°C
10
8
0
2
8
4
6
±SUPPLY
VOLTAGE (V)
10
1195 G06
Output Voltage Swing vs
Load Resistance
V
S
=
±5V
Open-Loop Gain vs Temperature
10k
V
S
=
±5V
V
O
=
±3V
8k
R
L
= 1k
T
A
= –55°C
T
A
= 25°C
T
A
= 125°C
6k
–1
T
A
= 25°C
T
A
= 125°C
T
A
= –55°C
4k
–3
2k
R
L
= 150Ω
100
125
10
100
LOAD RESISTANCE (Ω)
1k
1195 G08
0
–50
–25
0
25
75
50
TEMPERATURE (°C)
100
125
1195 G07
1195 G09
1195fa
5
传感器
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