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PDF LT1211I Data sheet ( Hoja de datos )
| Número de pieza | LT1211I | |
| Descripción | 14MHz/ 7V/us/ Single Supply Dual and Quad Precision Op Amps | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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LT1211/LT1212
14MHz, 7V/µs, Single Supply
Dual and Quad
Precision Op Amps
FEATURES
s Slew Rate: 7V/µs Typ
s Gain-Bandwidth Product: 14MHz Typ
s Fast Settling to 0.01%
2V Step to 200µV: 900ns Typ
10V Step to 1mV: 2.2µs Typ
s 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
s Single Supply Operation
Input Voltage Range Includes Ground
Output Swings to Ground While Sinking Current
s Low Input Noise Voltage: 12nV/√Hz Typ
s Low Input Noise Current: 0.2pA/√Hz Typ
s Specified on 3.3V, 5V and ±15V
s Large Output Drive Current: 20mA Min
s Low Supply Current per Amplifier: 1.8mA Max
s Dual in 8-Pin DIP and SO-8
s Quad in 14-Pin DIP and Narrow SO-16
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.
DESCRIPTIO
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.
APPLICATI S
s 2.5V Full-Scale 12-Bit Systems: VOS ≤ 0.45LSB
s 10V Full-Scale 16-Bit Systems: VOS ≤ 1.8LSB
s Active Filters
s Photo Diode Amplifiers
s DAC Current-to-Voltage Amplifiers
s Battery-Powered Systems
TYPICAL APPLICATI
Input Bias Current Cancellation
RG
VIN
RF
V+
–
1/2
LT1211
+ SIGNAL AMP
VOUT
1M
22pF
1M
+
1/2
LT1211
–
CANCELLATION
AMP
1211/12 TA01
Input Current vs Input Voltage
100
90
VS = 5V, VOUT IN
LINEAR REGION
80 WITHOUT CANCELLATION
70 RIN = 300M
60
50
40
WITH CANCELLATION
30
20
RIN = 2.4G
10
0
0.01
0.1 1
INPUT VOLTAGE (V)
10
1211/12 TA02
1
1 page  
LT1211/LT1212
5V ELECTRICAL CHARACTERISTICS
VS = 5V, VCM = 0.5V, VOUT = 0.5V, – 55°C ≤ TA ≤ 125°C, unless otherwise noted.
SYMBOL PARAMETER
VOS
∆VOS
∆T
IOS
IB
Input Offset Voltage
Input Offset Voltage Drift
(Note 3)
Input Offset Current
Input Bias Current
Input Voltage Range
CONDITIONS
CMRR
PSRR
AVOL
IS
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
(Note 4)
Supply Current per Amplifier
VCM = 0.4V to 3.1V
VS = 2.5V to 12.5V
VO = 0.05V to 3.7V, RL = 500Ω
Output High, No Load
Output High, ISOURCE = 1mA
Output High, ISOURCE = 10mA
Output Low, No Load
Output Low, ISINK = 1mA
Output Low, ISINK = 10mA
LT1211AM
MIN TYP MAX
140 250
0.7 1.5
15 40
75 130
3.1 3.2
0.4 0.2
87 104
87 113
100 250
4.10 4.20
3.95 4.10
3.70 3.90
0.007 0.010
0.060 0.085
0.350 0.500
0.5 1.7 2.5
LT1211M
MIN TYP MAX
200 500
13
25 75
85 160
3.1 3.2
0.4 0.2
81 101
84 109
100 250
4.10 4.20
3.95 4.10
3.70 3.90
0.007 0.010
0.060 0.085
0.350 0.500
0.5 1.7 2.5
UNITS
µV
µV/°C
nA
nA
V
V
dB
dB
V/mV
V
V
V
mV
mV
mV
mA
+–15V ELECTRICAL CHARACTERISTICS
VS = ±15V, VCM = 0V, VOUT = 0V, TA = 25°C, unless otherwise noted.
SYMBOL PARAMETER
VOS Input Offset Voltage
IOS Input Offset Current
IB Input Bias Current
Input Voltage Range
CONDITIONS
CMRR
PSRR
AVOL
IO
SR
GBW
IS
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
VCM = –15V to 13.5V
VS = ±2V to ±18V
VO = 0V to ±10V, RL = 2k
Output High, ISOURCE = 15mA
Output Low, ISINK = 15mA
(Note 9)
AV = – 2 (Note 6)
f = 100kHz
VO = ±10V, RL = 2k
Equal Split Supplies
AV = 1, VO = 20VP-P
0.01%, AV = 1, ∆VO = 10V
LT1211AC
LT1211AM
MIN TYP MAX
125 400
5 20
45 95
13.5 13.8
–15.0 – 15.3
90 105
90 113
1200 5000
13.8 14.0
–14.4 –14.6
±20 ±50
57
8 14
0.9 1.8 2.5
128 140
±1.2 ±2.0
60
2.2
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
57
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
5
5 Page 
TYPICAL PERFOR A CE CHARACTERISTICS
5V Small-Signal Response
5V Large-Signal Response
3V
LT1211/LT1212
5V Large-Signal Response
3V
VS = 5V
AV = 1
100ns/DIV
1211/12 G25
0V
VS = 5V
AV = 1
500ns/DIV
1211/12 G26
0V
VS = 5V
AV = – 1
RF = RG = 1k
CF = 20pF
500ns/DIV
1211/12 G27
±15V Small-Signal Response
±15V Large-Signal Response
±15V Large-Signal Response
VS = ±15V
AV = 1
100ns/DIV
1211/12 G28
10V
0V
–10V
VS = ±15V
AV = 1
2µs/DIV
1211/12 G29
10V
0V
–10V
VS = ±15V
AV = –1
RF = RG = 1k
2µs/DIV
1211/12 G30
5V Settling
VS = 5V
AV = 1
200ns/DIV
1211/12 G31
±15V Settling
VS = ±15V
AV = –1
500ns/DIV
1211/12 G32
Settling Time to 0.01%
vs Output Step
10
8 VS = ±15V
6 INVERTING
NONINVERTING
4
2
0
–2
–4
INVERTING
–6
–8
NONINVERTING
–10
0.5 1.0
1.5
2.0
SETTLING TIME (µs)
2.5
1211/12 G33
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet LT1211I.PDF ] | |
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