LT1195
Low Power, High Speed
Operational Amplifier
FEATURES
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
50MHz
165V/µs
±20mA
12mA
7.5V/mV
Gain-Bandwidth Product
Unity-Gain Stable
Slew Rate
Output Current
Low Supply Current
High Open-Loop Gain
Low Cost
Single Supply 5V Operation
Industry Standard Pinout
Output Shutdown
The LTC1195 is a video operational amplifier optimized for
operation on single 5V and
±5V
supply. 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, and 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 inte-
grators, 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.
APPLICATI
s
s
s
s
s
s
S
Video Cable Drivers
Video Signal Processing
Fast Peak Detectors
Fast Integrators
Video Cable Drivers
Pulse Amplifiers
TYPICAL APPLICATI
5V
3
C
I
60pF
Fast Pulse Detector
R
I
1k
V
IN
R
S
50Ω
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
INPUT
1195 TA01
U
1195TAO2
UO
UO
1
LT1195
ABSOLUTE
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 1) ......... Continuous
Operating Temperature Range
LT1195M ........................................ –55°C to 125°C
LT1195C ................................................ 0°C to 70°C
Junction Temperature (Note 2)
Plastic Package (CN8, CS8) ............................ 150°C
Ceramic Package (CJ8, MJ8) .......................... 175°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ORDER PART
NUMBER
LT1195MJ8
LT1195CJ8
LT1195CN8
LT1195CS8
S8 PART MARKING
1195
N8 PACKAGE
J8 PACKAGE
8-LEAD CERAMIC DIP 8-LEAD PLASTIC DIP
S8 PACKAGE
8-LEAD PLASTIC SOIC
T
JMAX
= 175°C,
θ
JA
= 100°C/ W (J8)
T
JMAX
= 150°C,
θ
JA
= 100°C/ W (N8)
T
JMAX
= 150°C,
θ
JA
= 150°C/ W (S8)
+
±5V ELECTRICAL CHARACTERISTICS
–
V
S
=
±5V,
C
L
≤
10pF, pin 5 open circuit, unless otherwise noted.
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
SYMBOL
V
OS
I
OS
I
B
e
n
i
n
R
IN
C
IN
CMRR
PSRR
A
VOL
T
A
= 25°C
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 3)
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 4, 9)
V
OUT
= 6V
P-P
,
(Note 5)
A
V
= 50, V
OUT
=
±1.5V,
20% to 80%, (Note 9)
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 6)
R
L
= 150Ω, A
V
= 2, (Note 7)
R
L
= 150Ω, A
V
= 2, (Note 7)
LT1195M/C
MIN
TYP
3.0
3.0
0.2
±0.5
70
2.0
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
MAX
8.0
10.0
1.0
±2.0
3.5
250
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
2
U
W
U
U
W W
W
LT1195
+
ELECTRICAL CHARACTERISTICS
±5V
–
V
S
=
±5V,
C
L
≤
10pF, pin 5 open circuit, unless otherwise noted.
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
SYMBOL
I
S
I
S/D
t
ON
t
OFF
T
A
= 25°C
LT1195M/C
TYP
MAX
12
16
0.8
1.5
5
25
160
700
MIN
UNITS
mA
mA
µA
ns
ns
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
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
0.4
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
(Note 3)
V
CM
= 2V to 3.5V
R
L
= 150Ω to Ground, V
OUT
= 1V to 3V
R
L
= 150Ω to Ground
V
OUT
High
V
OUT
Low
A
V
= –1, V
OUT
= 1V to 3V
15
1.5
25
Pin 5 at V
–
Pin 5 at V
–
+
ELECTRICAL CHARACTERISTICS
±5V
–
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
–55°C
≤
T
A
≤
125°C, (Note 10)
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 5 at
Pin 5 at V
–
V
–
, (Note 8)
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
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 8)
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
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
V
S+
= 5V, V
S–
= OV, V
CM
= 2.5V, pin 5 open circuit, unless otherwise noted.
MIN
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
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 3)
V
CM
= 2V to 3.5V
R
L
= 150Ω to Ground
V
OUT
High
V
OUT
Low
Pin 5 at V
–
, (Note 8)
Pin 5 at V
–
0.4
16
2.0
25
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
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 3:
Exceeding the input common-mode range may cause the output
to invert.
Note 4:
Slew rate is measured between
±1V
on the output, with
±3V
input step.
Note 5:
Full power bandwidth is calculated from the slew rate
measurement: FPBW = SR/2πV
P.
Note 6:
Settling time measurement techniques are shown in “Take the
Guesswork Out of Settling Time Measurements,” EDN, September 19, 1985.
Note 7:
NTSC (3.58MHz). For R
L
= 1k, Diff A
V
= 0.3%, Diff Ph = 0.35°.
Note 8:
See Applications Information section for shutdown at elevated
temperatures. Do not operate the shutdown above T
J
> 125°C.
Note 9:
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 10:
Do not operate at A
V
< 2 for T
A
< 0°C.
4
LT1195
TYPICAL PERFOR A CE CHARACTERISTICS
Input Bias Current vs
Common-Mode Voltage
3.0
V
S
= ±5V
2.5
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 (
µ
A)
INPUT BIAS CURRENT (nA)
–0.5
Equivalent Input Noise Voltage
vs Frequency
EQUIVALENT INPUT NOISE VOLTAGE (nV/√Hz)
V
S
= ±5V
T
A
= 25°C
R
S
= 0Ω
EQUIVALENT INPUT NOISE CURRENT (pA/√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)
OUTPUT VOLTAGE SWING (V)
5
4
3
2
1
V
S/D
= –V
EE
+ 0.6V
V
S/D
= –V
EE
+ 0.4V
V
S/D
= –V
EE
+ 0.2V
1
OPEN-LOOP GAIN (V/V)
V
S/D
= –V
EE
0
–50
–25
50
0
25
75
TEMPERATURE (°C)
100
125
U W
1195 G01
1195 G07
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
Supply Current vs Supply Voltage
16
14
–55°C
25°C
12
125°C
10
8
0
2
4
6
8
±SUPPLY VOLTAGE (V)
10
1195 G06
Output Voltage Swing vs
Load Resistance
5
V
S
= ±5V
3
T
A
= 25°C
T
A
= 125°C
T
A
= –55°C
8k
10k
Open-Loop Gain vs Temperature
V
S
= ±5V
V
O
= ±3V
R
L
= 1k
6k
–1
T
A
= 25°C
T
A
= 125°C
–5
10
100
LOAD RESISTANCE (Ω)
1k
1195 G08
4k
–3
2k
T
A
= –55°C
0
–50
R
L
= 150Ω
–25
0
25
75
50
TEMPERATURE (°C)
100
125
1195 G09
5
嵌入式系统
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