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PDF LT1809 Data sheet ( Hoja de datos )
| Número de pieza | LT1809 | |
| Descripción | 180MHz/ 350V/ms Rail-to-Rail Input and Output Low Distortion Op Amp | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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FEATURES
n –3dB Bandwidth: 320MHz, AV = 1
n Gain-Bandwidth Product: 180MHz, AV ≥ 10
n Slew Rate: 350V/μs
n Wide Supply Range: 2.5V to 12.6V
n Large Output Current: 85mA
n Low Distortion, 5MHz: – 90dBc
n Input Common Mode Range Includes Both Rails
n Output Swings Rail-to-Rail
n Input Offset Voltage, Rail-to-Rail: 2.5mV Max
n Common Mode Rejection: 89dB Typ
n Power Supply Rejection: 87dB Typ
n Open-Loop Gain: 100V/mV Typ
n Shutdown Pin: LT1809
n Single in 8-Pin SO and 6-Pin SOT-23 Packages
n Dual in 8-Pin SO and MSOP Packages
n Operating Temperature Range: –40°C to 85°C
n Low Profile (1mm) SOT-23 (ThinSOT™) Package
APPLICATIONS
n Driving A/D Converters
n Low Voltage Signal Processing
n Active Filters
n Rail-to-Rail Buffer Amplifiers
n Video Line Driver
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
LT1809/LT1810
Single/Dual 180MHz, 350V/µs
Rail-to-Rail Input and Output
Low Distortion Op Amps
DESCRIPTION
The LT®1809/LT1810 are single/dual low distortion rail-to-
rail input and output op amps with a 350V/μs slew rate.
These amplifiers have a –3dB bandwidth of 320MHz at
unity-gain, a gain-bandwidth product of 180MHz (AV ≥ 10)
and an 85mA output current to fit the needs of low voltage,
high performance signal conditioning systems.
The LT1809/LT1810 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 LT1809/LT1810 have very low distortion (–90dBc) up
to 5MHz that allows them to be used in high performance
data acquisition systems.
The LT1809/LT1810 maintain their performance for supplies
from 2.5V to 12.6V and are specified at 3V, 5V and ± 5V
supplies. The inputs can be driven beyond the supplies
without damage or phase reversal of the output.
The LT1809 is available in the 8-pin SO package with the
standard op amp pinout and the 6-pin SOT-23 package.
The LT1810 features the standard dual op amp pinout and
is available in 8-pin SO and MSOP packages. These devices
can be used as a plug-in replacement for many op amps
to improve input/output range and performance.
TYPICAL APPLICATION
VIN
1VP-P
5V
+
LT1809
–
–5V
R1
1k
High Speed ADC Driver
5V
R3
49.9Ω
LTC®1420
+AIN PGA GAIN = 1
C1 –AIN REF = 2.048V
470pF
••
•
R2
1k 1809 TA01a
–5V
12 BITS
10Msps
Distortion vs Frequency
–40
AV = +1
–50
VIN = 2VP-P
VS = ±5V
–60
–70
RL = 100Ω, 2ND
–80
–90
–100
–110
0.3
RL = 100Ω, 3RD
RL = 1k, 3RD
RL = 1k, 2ND
1 10
FREQUENCY (MHz)
30
1809 TA01b
180910fa
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1 page  
LT1809/LT1810
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the 0°C ≤ TA ≤ 70°C
temperature range. VS = 5V, 0V; VS = 3V, 0V; VSHDN = open; VCM = VOUT = half supply, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VOH Output Voltage Swing HIGH (Note 7)
ISC
IS
ISHDN
VL
VH
tON
tOFF
GBW
Short-Circuit Current
Supply Current per Amplifier
Supply Current, Shutdown
SHDN Pin Current
Output Leakage Current, Shutdown
SHDN Pin Input Voltage Low
SHDN Pin Input Voltage High
Turn-On Time
Turn-Off Time
Gain-Bandwidth Product
No Load
ISOURCE = 5mA
ISOURCE = 25mA
VS = 5V
VS = 3V
VS = 5V, VSHDN = 0.3V
VS = 3V, VSHDN = 0.3V
VS = 5V, VSHDN = 0.3V
VS = 3V, VSHDN = 0.3V
VSHDN = 0.3V
VSHDN = 0.3V to 4.5V, RL = 100
VSHDN = 4.5V to 0.3V, RL = 100
Frequency = 2MHz
l
l
l
l ±40
l ±30
l
l
l
l
l
l
l
l VS – 0.5
l
l
l
50
110
370
±75
± 65
15
0.58
0.35
420
220
2
80
50
145
120
220
700
20
1.4
1.1
850
550
0.3
mV
mV
mV
mA
mA
mA
mA
mA
μA
μA
μA
V
V
ns
ns
MHz
SR
FPBW
Slew Rate
Full Power Bandwidth
VS = 5V, AV = –1, RL = 1k, VO = 4VP-P
VS = 5V, VOUT = 4VP-P
l
l
250
20
V/μs
MHz
The l denotes the specifications which apply over the – 40°C ≤ TA ≤ 85°C temperature range. VS = 5V, 0V; VS = 3V, 0V; VSHDN = open;
VCM = VOUT = half supply, unless otherwise noted. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VOS
VOS TC
ΔVOS
Input Offset Voltage
VCM = V +
VCM = V–
VCM
VCM
=
=
V+
V–
LT1809 SO-8
LT1809 SO-8
Input Offset Voltage Drift (Note 8)
VCM
VCM
=
=
V+
V–
Input Offset Voltage Shift
VCM
VCM
=
=
V–
V–
to
V+
LT1809 SO-8
Input Offset Voltage Match (Channel-to-Channel) VCM = V+, VCM = V –
(Note 10)
l
l
l
l
l
l
l
l
l
1 3.5
1 3.5
1 4.0
1 4.0
9 25
9 25
0.5 3.0
0.5 3.5
1.2 7
mV
mV
mV
mV
μV/°C
μV/°C
mV
mV
mV
IB Input Bias Current
VCM
VCM
=
=
V+
V–
–
+
0.2V
0.4V
ΔIB Input Bias Current Shift
VCM = V – + 0.4V to V+ – 0.2V
Input Bias Current Match (Channel-to-Channel) VCM = V+ – 0.2V
(Note 10)
VCM = V– + 0.4V
IOS Input Offset Current
VCM = V+ – 0.2V
VCM = V– + 0.4V
ΔIOS Input Offset Current Shift
VCM = V– + 0.4V to V+ – 0.2V
l 2 12
l –35 –17
l 19 47
l 0.2 6
l 0.6 12
l 0.08 2
l 0.5 6
l 0.58 7.5
μA
μA
μA
μA
μA
μA
μA
μA
AVOL Large-Signal Voltage Gain
VS = 5V, VO = 0.5V to 4.5V, RL = 1k to VS/2
VS = 5V, VO = 1V to 4V, RL = 100Ω to VS/2
VS = 3V, VO = 0.5V to 2.5V, RL = 1k to VS/2
l 17
l 2.5
l 10
60
7
35
V/mV
V/mV
V/mV
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5 Page 
TYPICAL PERFORMANCE CHARACTERISTICS
LT1809/LT1810
VOS Distribution, VCM = 0V
(PNP Stage)
50
VS = 5V, 0V
40
30
20
10
0
–3 –2 –1 0 1
2
INPUT OFFSET VOLTAGE (mV)
3
1809 G01
Supply Current vs Supply Voltage
25
20
TA = 125°C
15 TA = 25°C
10
TA = –55°C
5
0
0 1 2 3 4 5 6 7 8 9 10
TOTAL SUPPLY VOLTAGE (V)
1809 G04
Input Bias Current vs Temperature
5
VS = 5V, 0V
3
1
VCM = 5V
–1
–3
–5
VCM = 0V
–7
–9
–11
–13
–15
–50 –35 –20 –5 10 25 40 55 70 85
TEMPERATURE (°C)
1809 G07
VOS Distribution, VCM = 5V
(NPN Stage)
50
VS = 5V, 0V
40
30
20
10
0
–3 –2 –1 0 1
2
INPUT OFFSET VOLTAGE (mV)
3
1809 G02
Offset Voltage
vs Input Common Mode
2.0
VS = 5V, 0V
TYPICAL PART
1.5
TA = 125°C
1.0
0.5
TA = 25°C
0
–0.5
TA = –55°C
–1.0
–1.5
0
12345
INPUT COMMON MODE VOLTAGE (V)
1809 G05
Output Saturation Voltage
vs Load Current (Output Low)
10
VS = 5V, 0V
1
0.1
TA = 125°C
0.01
TA = –55°C
TA = 25°C
0.001
0.01
0.1 1 10
LOAD CURRENT (mA)
100
1809 G08
ΔVOS Shift for VCM = 0V to 5V
25
VS = 5V, 0V
20
15
10
5
0
–1 –0.75 –0.5 –0.25 0 0.25 0.5 0.75 1
INPUT OFFSET VOLTAGE (mV)
1809 G03
Input Bias Current
vs Common Mode Voltage
10
VS = 5V, 0V
5
TA = 25°C
0 TA = 125°C
TA = –55°C
–5
–10
TA = –55°C
–15 TA = 25°C
–20 TA = 125°C
–25
–30
–1
0 1 2345
COMMON MODE VOLTAGE (V)
6
1809 G06
Output Saturation Voltage
vs Load Current (Output High)
10
VS = 5V, 0V
1
0.1 TA = 125°C
TA = 25°C
0.01
TA = –55°C
0.001
0.01
0.1 1 10
LOAD CURRENT (mA)
100
1809 G09
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11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet LT1809.PDF ] | |
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