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PDF LT1803 Data sheet ( Hoja de datos )
| Número de pieza | LT1803 | |
| Descripción | Rail-to-Rail Input and Output Op Amps | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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LT1803/LT1804/LT1805
Single/Dual/Quad 100V/µs,
85MHz, Rail-to-Rail Input and
Output Op Amps
FEATURES
s Slew Rate: 100V/µs
s Gain Bandwidth Product: 85MHz
s Input Common Mode Range Includes Both Rails
s Output Swings Rail-to-Rail
s Low Quiescent Current: 3mA Max per Amplifier
s Large Output Current: 42mA
s Voltage Noise: 21nV/√Hz
s Power Supply Rejection: 90dB
s Open-Loop Gain: 60V/mV
s Operating Temperature Range: – 40°C to 85°C
s Single Available in the 8-Pin SO and 5-Pin Low Profile
(1mm) SOT-23 (ThinSOTTM) Package
s Dual Available in 8-Lead DFN and SO Packages
s Quad Available in the 14-Pin Narrow SO Package
U
APPLICATIO S
s Low Voltage, High Frequency Signal Processing
s Driving A/D Converters
s Rail-to-Rail Buffer Amplifiers
s Active Filters
s Video Line Driver
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
DESCRIPTIO
The LT®1803/LT1804/LT1805 are single/dual/quad, low
power, high speed rail-to-rail input and output operational
amplifiers with excellent DC performance. The LT1803/
LT1804/LT1805 feature reduced supply current, lower
input offset voltage, lower input bias current and higher
DC gain than other devices with comparable bandwidth
and slew rate.
Typically, the LT1803/LT1804/LT1805 have an input off-
set voltage of 350µV, an input bias current of 125nA and
an open-loop gain of 60V/mV.
The LT1803/LT1804/LT1805 have an input range that
includes both supply rails and an output that swings within
20mV of either supply rail to maximize the signal dynamic
range in low supply applications.
The LT1803/LT1804/LT1805 are specified at 3V, 5V and
±5V supplies and typically maintain their performance for
supplies from 2.3V to 12.6V. The inputs can be driven
beyond the supplies without damage or phase reversal of
the output.
The LT1803 is available in the 8-pin SO package with the
standard op amp pinout and in the 5-pin SOT-23 package.
The LT1804 is available in 8-pin DFN and SO packages
with the standard op amp pinouts. The LT1805 features
the standard quad op amp configuration and is available in
a 14-pin plastic SO package.
TYPICAL APPLICATIO
Inverting DC Restore
R2
10k
R1
1k
VIN
–
A
+1/2 LT1804
VS+
R5
2k
R4
100k
D2
1N4148
D1
1N4148
C1 R6
0.1µF 1M
VS–
VS = ±5V
B
1/2 LT1804
R3
1k
18045 TA01
VOUT
Inverting DC Restore Circuit Response
VIN
50mV/DIV
GND
VOUT
500mV/DIV
GND
50µs/DIV
18045 TA02
180345f
1
1 page  
LT1803/LT1804/LT1805
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the –40°C ≤ TA ≤ 85°C
temperature range. VS = 5V, 0V; VS = 3V, 0V; VCM = VOUT = half supply unless otherwise noted. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
VOS
∆VOS
VOS TC
IB
IOS
AVOL
CMRR
PSRR
Input Offset Voltage
Input Offset Shift
Input Offset Voltage Match
(Channel-to-Channel) (Note 9)
Input Offset Voltage Drift (Note 8)
VCM = 0V
VCM = 0V (DD Package)
VCM = 0V (SOT-23 Package)
VCM = VS
VCM = 0V to VS – 2V
VCM = 0V
VCM = 0V (DD Package)
Input Bias Current
Input Bias Current Match
(Channel-to-Channel) (Note 9)
Input Offset Current
Large-Signal Voltage Gain
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 9)
Input Common Mode Range
VCM = 1V
VCM = VS – 0.2V
VCM = 1V
VCM = VS – 0.2V
VCM = 1V
VCM = VS – 0.2V
VS = 5V, VO = 0.5V to 4.5V, RL = 1k to VS/2
VS = 5V, VO = 1.5V to 3.5V, RL = 100Ω to VS/2
VS = 3V, VO = 0.5V to 2.5V, RL=1k to VS/2
VS = 5V, VCM = 0V to 3V
VS = 3V, VCM = 0V to 1V
VS = 5V, VCM = 0V to 3V
VS = 3V, VCM = 0V to 1V
Power Supply Rejection Ratio
PSRR Match (Channel-to-Channel) (Note 9)
Minimum Supply Voltage (Note 6)
VS = 2.5V to 10V, VCM = 0V
VS = 2.5V to 10V, VCM = 0V
q 0.7 4
q 1.5 6.5
q 1.5 7
q 1.7 9
q 0.125 1.00
q 1 6.5
q 29
q 10 35
q 200 1500
q 3.4 6.5
q 150 2000
q 150 2200
q 100 1600
q 50 1600
q 12
q 1.3
q8
48
4.8
35
q 69
q 60
95
90
q 63
q 54
90
85
q0
VS
q 64 86
q 58 86
q 2.3 2.5
mV
mV
mV
mV
mV
mV
mV
µV/°C
nA
µA
nA
nA
nA
nA
V/mV
V/mV
V/mV
dB
dB
dB
dB
V
dB
dB
V
VOL Output Voltage Swing Low (Note 7)
VOH Output Voltage Swing High (Note 7)
ISC Short-Circuit Current (Note 3)
IS Supply Current per Amplifier
GBW Gain Bandwidth Product
SR Slew Rate
No Load
ISINK = 5mA
ISINK = 10mA
No Load
ISOURCE = 5mA
ISOURCE = 10mA
VS = 5V
VS = 3V
q
q
q
q
q
q
q
q
q
VS = 5V, Frequency = 2MHz, RL = 1k to 2.5V
VS = 5V, AV = –1, RL = 1k to VS/2, VO = 0.5V to 4.5V
Measured at VO = 1.5V, 3.5V
q
q
12
11
40
30
20 90
100 250
170 350
20 90
170 400
300 600
35
27
3.1 4.25
77
70
mV
mV
mV
mV
mV
mV
mA
mA
mA
MHz
V/µs
180345f
5
5 Page 
LT1803/LT1804/LT1805
TYPICAL PERFOR A CE CHARACTERISTICS
Input Current Noise
vs Frequency
8
7
VS = 5V, 0V
6
5
PNP ACTIVE
4 VCM = 2.5V
3
NPN ACTIVE
2 VCM = 4.25V
1
0
0.01
0.1 1 10
FREQUENCY (kHz)
100
180345 G19
0.1Hz to 10Hz Voltage Noise
6
VS = 5V, 0V
4
2
0
–2
–4
–6
0 12
34 56 7
TIME (SECONDS)
8 9 10
180345 G20
Gain Bandwidth and Phase
Margin vs Supply Voltage
120
TA = 25°C
100
GAIN BANDWIDTH
PRODUCT
80
60
60
50 PHASE MARGIN
40
30
0 1 2 3 4 5 6 7 8 9 10
TOTAL SUPPLY VOLTAGE (V)
180345 G21
Gain Bandwidth and Phase
Margin vs Temperature
120
GAIN BANDWIDTH
100
VS = ±2.5V
80
VS = ±5V
60
40
60 PHASE MARGIN
VS = ±5V
50
40 VS = ±2.5V
30
20
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
180345 G22
Slew Rate vs Temperature
110
100
VS = ±2.5V
AV = –1
RF = RG = 1k
RL = 1k
90 VS = ±5V
80
70
60
50
40
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
180345 G23
Gain and Phase vs Frequency
120
60
100 80
PHASE
80 100
60 120
40
GAIN
20
TA = 25°C
0 CL = 5pF
RL = 1k
–20 VS = ±5V
VS = ±2.5V
–40
0.01 0.1
1
10
FREQUENCY (MHz)
140
160
180
200
220
100 300
180345 G24
Gain vs Frequency (AV = 1)
30 CL = 10pF
24 RL = 100Ω
18 AV = 1
12
6
0 VS = ±2.5V
–6
–12 VS = ±5V
–18
–24
–30
0.1
1 10
FREQUENCY (MHz)
100 300
180345 G25
Gain vs Frequency (AV = 2)
30 CL = 10pF
24 RL = 100Ω
18 AV = 2
12
6
0 VS = ±2.5V
–6
VS = ±5V
–12
–18
–24
–30
0.1
1 10
FREQUENCY (MHz)
100 300
180345 G26
Output Impedance vs Frequency
1000
VS = ±2.5V
100
AV = 10
10 AV = 1
1
AV = 2
0.1
0.01
0.001
0.1
1 10 100
FREQUENCY (kHz)
1000
180345 G27
180345f
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet LT1803.PDF ] | |
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