LT1211/LT1212
14MHz, 7V/µs, Single Supply
Dual and Quad
Precision Op Amps
FEATURES
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DESCRIPTIO
s
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APPLICATIO S
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Note:
For applications requiring higher slew rate, see the LT1213/LT1214 and
LT1215/LT1216 data sheets.
, LTC and LT are registered trademarks of Linear Technology Corporation.
2.5V Full-Scale 12-Bit Systems: V
OS
≤
0.45LSB
10V Full-Scale 16-Bit Systems: V
OS
≤
1.8LSB
Active Filters
Photo Diode Amplifiers
DAC Current-to-Voltage Amplifiers
Battery-Powered Systems
TYPICAL APPLICATIO
R
G
R
F
V
+
Input Bias Current Cancellation
100
90
80
INPUT CURRENT (nA)
Input Current vs Input Voltage
V
S
= 5V, V
OUT
IN
LINEAR REGION
WITHOUT CANCELLATION
R
IN
= 300M
–
1/2
LT1211
V
IN
V
OUT
SIGNAL AMP
70
60
50
40
30
20
10
0
0.01
+
1M
+
22pF
1/2
LT1211
CANCELLATION
AMP
–
1211/12 TA01
1M
U
Slew Rate: 7V/
µ
s Typ
Gain-Bandwidth Product: 14MHz Typ
Fast Settling to 0.01%
2V Step to 200µV: 900ns Typ
10V Step to 1mV: 2.2µs Typ
Excellent DC Precision in All Packages
Input Offset Voltage: 275µV Max
Input Offset Voltage Drift: 6µV/°C Max
Input Offset Current: 30nA Max
Input Bias Current: 125nA Max
Open-Loop Gain: 1200V/mV Min
Single Supply Operation
Input Voltage Range Includes Ground
Output Swings to Ground While Sinking Current
Low Input Noise Voltage: 12nV/√Hz Typ
Low Input Noise Current: 0.2pA/√Hz Typ
Specified on 3.3V, 5V and
±15V
Large Output Drive Current: 20mA Min
Low Supply Current per Amplifier: 1.8mA Max
Dual in 8-Pin DIP and SO-8
Quad in 14-Pin DIP and Narrow SO-16
The LT
®
1211 is a dual, single supply precision op amp with
a 14MHz gain-bandwidth product and a 7V/µs slew rate.
The LT1212 is a quad version of the same amplifier. The
DC precision of the LT1211/LT1212 eliminates trims in
most systems while providing high frequency perfor-
mance not usually found in single supply amplifiers.
The LT1211/LT1212 will operate on any supply greater
than 2.5V and less than 36V total. These amplifiers are
specified on single 3.3V, single 5V and
±15V
supplies, and
only require 1.3mA of quiescent supply current per ampli-
fier. The inputs can be driven beyond the supplies without
damage or phase reversal of the output. The minimum
output drive is 20mA, ideal for driving low impedance
loads.
U
WITH CANCELLATION
R
IN
= 2.4G
0.1
1
INPUT VOLTAGE (V)
10
1211/12 TA02
U
1
LT1211/LT1212
ABSOLUTE
AXI U
RATI GS
Total Supply Voltage (V
+
to V
–
) ............................. 36V
Input Current .....................................................
±15mA
Output Short-Circuit Duration (Note 2) ........ Continuous
Operating Temperature Range
LT1211C/LT1212C ............................ – 40°C to 85°C
LT1211I/LT1212I ............................... – 40°C to 85°C
LT1211M
(OBSOLETE) ...............
– 55°C to 125°C
PACKAGE/ORDER I FOR ATIO
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V
–
4
B
A
8 V
+
ORDER PART
NUMBER
LT1211CN8
LT1211ACN8
LT1211IN8
LT1211MJ8
LT1211AMJ8
ORDER PART
NUMBER
LT1212CN
LT1212IN
7 OUT B
6 –IN B
5 +IN B
N8 PACKAGE
8-LEAD PDIP
T
JMAX
= 150°C,
θ
JA
= 100°C/W (N)
J8 PACKAGE
8-LEAD CERDIP
T
JMAX
= 175°C,
θ
JA
= 100°C/W (J)
Consider the N8 Package for Alternate Source
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V
+
4
+IN B 5
–IN B 6
OUT B 7
N PACKAGE
14-LEAD PDIP
B
C
A
D
OBSOLETE PACKAGE
14 OUT D
13 –IN D
12 +IN D
11 V
–
10 +IN C
9
8
–IN C
OUT C
T
JMAX
= 150°C,
θ
JA
= 70°C/W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
AVAILABLE OPTIO S
NUMBER OF
OP AMPS
Two (Dual)
T
A
RANGE
– 40°C to 85°C
MAX V
OS
(25°C)
150µV
275µV
275µV
MAX TC V
OS
(∆V
OS
/∆T)
1.5µV/°C
3µV/°C
6µV/°C
CERAMIC (J)
OBSOLETE
PACKAGE
PLASTIC DIP
(N)
LT1211ACN8
LT1211CN8,
LT1211IN8
SURFACE MOUNT
(S)
2
U
U
W
W W
U
U
W
(Note 1)
Specified Temperature Range
LT1211C/LT1212C/
LT1211I/LT1212I (Note 6) ................... –40°C to 85°C
LT1211M
(OBSOLETE) ...............
– 55°C to 125°C
Storage Temperature Range ................ – 65°C to 150°C
Junction Temperature (Note 3)
Plastic Package (N8, S8, N, S) ........................ 150°C
Ceramic Package (J8)
(OBSOLETE).................
175°C
Lead Temperature (Soldering, 10 sec)................. 300°C
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V
–
4
A
B
8 V
+
7 OUT B
6 –IN B
5 +IN B
ORDER PART
NUMBER
LT1211CS8
LT1211IS8
S8 PART MARKING
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 150°C/W
1211
1211I
ORDER PART
NUMBER
LT1212CS
LT1212IS
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V
+
4
+IN B 5
–IN B 6
OUT B 7
NC 8
B
C
A
D
16 OUT D
15 –IN D
14 +IN D
13 V
–
12 +IN C
11 –IN C
10 OUT C
9
NC
S PACKAGE
16-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 100°C/W
LT1211CS8,
LT1211IS8
LT1211/LT1212
AVAILABLE OPTIO S
NUMBER OF
OP AMPS
Two (Dual)
Four (Quad)
T
A
RANGE
– 55°C to 125°C
– 40°C to 85°C
MAX V
OS
(25°C)
150µV
275µV
275µV
MAX TC V
OS
(∆V
OS
/∆T)
1.5µV/°C
3µV/°C
6µV/°C
CERAMIC (J)
OBSOLETE
LT1211AMJ8
LT1211MJ8
PACKAGE
PLASTIC DIP
(N)
SURFACE MOUNT
(S)
5V
ELECTRICAL CHARACTERISTICS
V
S
= 5V, V
CM
= 0.5V, V
OUT
= 0.5V, T
A
= 25°C, unless otherwise noted.
LT1211AC
LT1211AM
MIN
TYP
MAX
75
150
0.5
5
50
250
12.5
12.0
0.9
0.2
40
500
10
3.8
– 0.3
105
115
560
4.40
4.30
4.00
0.003
0.047
0.362
±50
4
13
1.3
2.2
300
45
25
36
900
75
0.001
20
100
LT1211C/LT1211M
LT1212C
MIN
TYP
MAX
100
275
0.6
5
60
250
12.5
12.0
0.9
0.2
40
500
10
3.8
– 0.3
102
110
560
4.40
4.30
4.00
0.003
0.047
0.362
±50
4
13
1.3
2.2
300
45
25
36
900
75
0.001
30
125
SYMBOL
V
OS
∆V
OS
∆Time
I
OS
I
B
e
n
i
n
PARAMETER
Input Offset Voltage
Long-Term Input Offset
Voltage Stability
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Voltage Density
Input Noise Current Density
Input Resistance (Note 4)
Input Capacitance
Input Voltage Range
CMRR
PSRR
A
VOL
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
(Note 5)
I
O
SR
GBW
I
S
t
r
, t
f
OS
t
PD
t
S
THD
Maximum Output Current
Slew Rate
Gain-Bandwidth Product
Supply Current per Amplifier
Minimum Supply Voltage
Full Power Bandwidth
Rise Time, Fall Time
Overshoot
Propagation Delay
Settling Time
Open-Loop Output Resistance
Total Harmonic Distortion
U
LT1212CN,
LT1212IN
LT1212CS,
LT1212IS
CONDITIONS
UNITS
µV
µV/Mo
nA
nA
nV
P-P
nV/√Hz
nV/√Hz
pA/√Hz
pA/√Hz
MΩ
MΩ
pF
V
V
dB
dB
V/mV
V
V
V
V
V
V
mA
V/µs
MHz
mA
V
kHz
ns
%
ns
ns
Ω
%
0.1Hz to 10Hz
f
O
= 10Hz
f
O
= 1000Hz
f
O
= 10Hz
f
O
= 1000Hz
Differential Mode
Common Mode
f = 1MHz
10
10
V
CM
= 0V to 3.5V
V
S
= 2.5V to 12.5V
V
O
= 0.05V to 3.7V, R
L
= 500Ω
Output High, No Load
Output High, I
SOURCE
= 1mA
Output High, I
SOURCE
= 15mA
Output Low, No Load
Output Low, I
SINK
= 1mA
Output Low, I
SINK
= 15mA
(Note 10)
A
V
= – 2
f = 100kHz
Single Supply
A
V
= 1, V
O
= 2.5V
P-P
A
V
= 1, 10% to 90%, V
O
= 100mV
A
V
= 1, V
O
= 100mV
A
V
= 1, V
O
= 100mV
0.01%, A
V
= 1,
∆V
O
= 2V
I
O
= 0mA, f = 5MHz
A
V
= 1, V
O
= 1V
RMS
, 20Hz to 20kHz
3.5
0
90
90
250
4.30
4.20
3.85
3.5
0
86
87
250
4.30
4.20
3.85
0.006
0.065
0.500
±20
0.006
0.065
0.500
±20
0.9
1.8
2.5
0.9
1.8
2.5
3
LT1211/LT1212
5V
ELECTRICAL CHARACTERISTICS
V
S
= 5V, V
CM
= 0.5V, V
OUT
= 0.5V, 0°C
≤
T
A
≤
70°C, unless otherwise noted.
SYMBOL
V
OS
∆V
OS
∆T
I
OS
I
B
PARAMETER
Input Offset Voltage
Input Offset Voltage Drift
(Note 4)
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
(Note 5)
CONDITIONS
8-Pin DIP Package
14-Pin DIP, SOIC Package
LT1211AC
MIN
TYP
MAX
100
175
0.7
1.5
5
60
3.5
– 0.1
105
114
430
4.33
4.23
4.03
0.004
0.052
0.290
1.4
25
110
LT1211C/LT1212C
MIN
TYP
MAX
150
375
1
3
2
6
10
35
70
135
3.4
3.5
0.1
– 0.1
85
102
86
110
150
430
4.20
4.33
4.10
4.23
3.90
4.03
0.004 0.007
0.052 0.070
0.290 0.400
0.8
1.4
2.1
UNITS
µV
µV/°C
µV/°C
nA
nA
V
V
dB
dB
V/mV
V
V
V
V
V
V
mA
CMRR
PSRR
A
VOL
V
CM
= 0.1V to 3.4V
V
S
= 2.5V to 12.5V
V
O
= 0.05V to 3.7V, R
L
= 500Ω
Output High, No Load
Output High, I
SOURCE
= 1mA
Output High, I
SOURCE
= 10mA
Output Low, No Load
Output Low, I
SINK
= 1mA
Output Low, I
SINK
= 10mA
3.4
0.1
89
89
150
4.20
4.10
3.90
I
S
Supply Current per Amplifier
0.8
0.007
0.070
0.400
2.1
V
S
= 5V, V
CM
= 0.5V, V
OUT
= 0.5V, – 40°C
≤
T
A
≤
85°C, unless otherwise noted. (Note 6)
LT1211AC
MIN
TYP
MAX
120
200
0.7
1.5
10
70
3.2
0
104
113
390
4.25
4.16
3.96
0.005
0.053
0.300
1.5
30
120
LT1211C/LT1212C
LT1211I/LT1212I
MIN
TYP
MAX
175
500
1
3
2
6
20
50
80
145
3.1
3.2
0.2
0
84
101
85
109
100
390
4.15
4.25
4.00
4.16
3.80
3.96
0.005 0.008
0.053 0.075
0.300 0.420
0.7
1.5
2.2
SYMBOL
V
OS
∆V
OS
∆T
I
OS
I
B
PARAMETER
Input Offset Voltage
Input Offset Voltage Drift
(Note 4)
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
(Note 5)
CONDITIONS
8-Pin DIP Package
14-Pin DIP, SOIC Package
CMRR
PSRR
A
VOL
V
CM
= 0.2V to 3.1V
V
S
= 2.5V to 12.5V
V
O
= 0.05V to 3.7V, R
L
= 500Ω
Output High, No Load
Output High, I
SOURCE
= 1mA
Output High, I
SOURCE
= 10mA
Output Low, No Load
Output Low, I
SINK
= 1mA
Output Low, I
SINK
= 10mA
3.1
0.2
88
88
100
4.15
4.00
3.80
I
S
Supply Current per Amplifier
0.7
0.008
0.075
0.420
2.2
UNITS
µV
µV/°C
µV/°C
nA
nA
V
V
dB
dB
V/mV
V
V
V
V
V
V
mA
4
LT1211/LT1212
5V
ELECTRICAL CHARACTERISTICS
V
S
= 5V, V
CM
= 0.5V, V
OUT
= 0.5V, – 55°C
≤
T
A
≤
125°C, unless otherwise noted.
SYMBOL
V
OS
∆V
OS
∆T
I
OS
I
B
PARAMETER
Input Offset Voltage
Input Offset Voltage Drift
(Note 4)
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
(Note 5)
CONDITIONS
MIN
LT1211AM
TYP
MAX
140
250
0.7
1.5
15
75
3.2
0.2
104
113
250
4.20
4.10
3.90
0.007
0.060
0.350
1.7
40
130
3.1
0.4
81
84
100
4.10
3.95
3.70
0.010
0.085
0.500
2.5
MIN
LT1211M
TYP
MAX
200
500
1
3
25
85
3.2
0.2
101
109
250
4.20
4.10
3.90
0.007
0.060
0.350
1.7
75
160
UNITS
µV
µV/°C
nA
nA
V
V
dB
dB
V/mV
V
V
V
mV
mV
mV
mA
CMRR
PSRR
A
VOL
V
CM
= 0.4V to 3.1V
V
S
= 2.5V to 12.5V
V
O
= 0.05V to 3.7V, R
L
= 500Ω
Output High, No Load
Output High, I
SOURCE
= 1mA
Output High, I
SOURCE
= 10mA
Output Low, No Load
Output Low, I
SINK
= 1mA
Output Low, I
SINK
= 10mA
3.1
0.4
87
87
100
4.10
3.95
3.70
I
S
Supply Current per Amplifier
0.5
0.5
0.010
0.085
0.500
2.5
+
–15V
ELECTRICAL CHARACTERISTICS
V
S
=
±15V,
V
CM
= 0V, V
OUT
= 0V, T
A
= 25°C, unless otherwise noted.
SYMBOL
V
OS
I
OS
I
B
PARAMETER
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
Maximum Output Current
Slew Rate
Gain-Bandwidth Product
Supply Current per Amplifier
Channel Separation
Minimum Supply Voltage
Full Power Bandwidth
Settling Time
CONDITIONS
LT1211AC
LT1211AM
MIN
TYP
125
5
45
13.5
13.8
–15.0 – 15.3
90
105
90
113
1200 5000
13.8
14.0
–14.4 –14.6
±20
±50
5
7
8
14
0.9
1.8
128
140
±1.2
60
2.2
MAX
400
20
95
LT1211C/LT1211M
LT1212C
MIN
TYP
MAX
150
550
5
30
50
120
13.5
13.8
–15.0 – 15.3
86
102
87
110
1200 5000
13.8
14.0
–14.4 –14.6
±20
±
50
5
7
8
14
0.9
1.8
2.5
128
140
±1.2
±2.0
60
2.2
UNITS
µV
nA
nA
V
V
dB
dB
V/mV
V
V
mA
V/µs
MHz
mA
dB
V
kHz
µs
CMRR
PSRR
A
VOL
I
O
SR
GBW
I
S
V
CM
= –15V to 13.5V
V
S
=
±2V
to
±18V
V
O
= 0V to
±10V,
R
L
= 2k
Output High, I
SOURCE
= 15mA
Output Low, I
SINK
= 15mA
(Note 10)
A
V
= – 2 (Note 7)
f = 100kHz
V
O
=
±10V,
R
L
= 2k
Equal Split Supplies
A
V
= 1, V
O
= 20V
P-P
0.01%, A
V
= 1,
∆V
O
= 10V
2.5
±2.0
5
嵌入式系统
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