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PDF LT1809 Data sheet ( Hoja de datos )
| Número de pieza | LT1809 | |
| Descripción | (LT1809 / LT1810) 350V/ms Rail-to-Rail Input and Output Low Distortion Op Amps | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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FEATURES
s –3dB Bandwidth: 320MHz, AV = 1
s Gain-Bandwidth Product: 180MHz, AV ≥ 10
s Slew Rate: 350V/µs
s Wide Supply Range: 2.5V to 12.6V
s Large Output Current: 85mA
s Low Distortion, 5MHz: – 90dBc
s Input Common Mode Range Includes Both Rails
s Output Swings Rail-to-Rail
s Input Offset Voltage, Rail-to-Rail: 2.5mV Max
s Common Mode Rejection: 89dB Typ
s Power Supply Rejection: 87dB Typ
s Open-Loop Gain: 100V/mV Typ
s Shutdown Pin: LT1809
s Single in 8-Pin SO and 6-Pin SOT-23 Packages
s Dual in 8-Pin SO and MSOP Packages
s Operating Temperature Range: – 40°C to 85°C
U
APPLICATIO S
s Driving A/D Converters
s Low Voltage Signal Processing
s Active Filters
s Rail-to-Rail Buffer Amplifiers
s Video Line Driver
, LTC and LT are registered trademarks of Linear Technology Corporation.
LT1809/LT1810
Single/Dual 180MHz, 350V/µs
Rail-to-Rail Input and Output
Low Distortion Op Amps
DESCRIPTIO
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 sup-
plies from 2.5V to 12.6V and are specified at 3V, 5V and
±5V supplies. The inputs can be driven beyond the sup-
plies 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 APPLICATIO
High Speed ADC Driver
VIN
1VP-P
5V
+
LT1809
–
–5V R2
1k
R1
1k
5V
R3
49.9Ω
LTC®1420
+AIN PGA GAIN = 1
C1 –AIN REF = 2.048V
470pF
•
•
12 BITS
10Msps
•
–5V
1809 TA01
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 TA02
1
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LT1809/LT1810
ELECTRICAL CHARACTERISTICS The q 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
tON Turn-On Time
tOFF Turn-Off Time
GBW Gain-Bandwidth Product
VSHDN = 0.3V to 4.5V, RL = 100
VSHDN = 4.5V to 0.3V, RL = 100
Frequency = 2MHz
q 80
q 50
q 145
ns
ns
MHz
SR
FPBW
Slew Rate
Full Power Bandwidth
VS = 5V, AV = –1, RL = 1k, VO = 4VP-P
VS = 5V, VOUT = 4VP-P
q
q
250
20
V/µs
MHz
The q 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
∆VOS
Input Offset Voltage
Input Offset Voltage Drift (Note 8)
Input Offset Voltage Shift
Input Offset Voltage Match (Channel-to-Channel)
(Note 10)
VCM = V + LT1809 SO-8
VCM = V – LT1809 SO-8
VCM
VCM
=
=
V
V
+
–
VCM
VCM
=
=
V
V
+
–
VCM = V – to V+ LT1809 SO-8
VCM = V–
VCM = V+, VCM = V –
q
1 3.5
mV
q
1 3.5
mV
q
1 4.0
mV
q
1 4.0
mV
q 9 25 µV/°C
q 9 25 µV/°C
q
0.5 3.0
mV
q
0.5 3.5
mV
q
1.2 7
mV
IB Input Bias Current
VCM = V + – 0.2V
VCM = V – + 0.4V
∆IB Input Bias Current Shift
VCM = V – + 0.4V to V + – 0.2V
Input Bias Current Match (Channel-to-Channel)
(Note 10)
VCM = V + – 0.2V
VCM = V – + 0.4V
IOS Input Offset Current
VCM = V + – 0.2V
VCM = V – + 0.4V
∆IOS Input Offset Current Shift
VCM = V – + 0.4V to V + – 0.2V
q
q – 35
2
– 17
12
q 19 47
q 0.2 6
q 0.6 12
q 0.08 2
q 0.5 6
q 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
q
q
q
17
2.5
10
60
7
35
V/mV
V/mV
V/mV
CMRR Common Mode Rejection Ratio
VS = 5V, VCM = V – to V +
VS = 3V, VCM = V – to V +
q 63
q 58
80
75
dB
dB
CMRR Match (Channel-to-Channel) (Note 10)
VS = 5V, VCM = V – to V +
VS = 3V, VCM = V – to V +
q 57
q 52
78
72
dB
dB
Input Common Mode Range
q V–
V+ V
PSRR
Power Supply Rejection Ratio
PSRR Match (Channel-to-Channel) (Note 10)
Minimum Supply Voltage (Note 6)
VS = 2.5V to 10V, VCM = 0V
VS = 2.5V to 10V, VCM = 0V
q 69
83
q 63
83
q 2.3 2.5
dB
dB
V
VOL Output Voltage Swing LOW (Note 7)
VOH Output Voltage Swing HIGH (Note 7)
ISC Short-Circuit Current
IS Supply Current per Amplifier
Supply Current, Shutdown
No Load
ISINK = 5mA
ISINK = 25mA
No Load
ISOURCE = 5mA
ISOURCE = 25mA
VS = 5V
VS = 3V
VS = 5V, VSHDN = 0.3V
VS = 3V, VSHDN = 0.3V
q 18 70
q 60 150
q 210 450
q 55 130
q 120 240
q 375 750
q ±30
q ±25
± 70
± 60
q 15 21
q 0.58 1.5
q 0.35 1.2
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
mA
5
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TYPICAL PERFOR A CE CHARACTERISTICS
Minimum Supply Voltage
1.0
VCM = V– + 0.5V
0.8
0.6
0.4
0.2 TA = –55°C
0
–0.2 TA = 125°C
–0.4
TA = 25°C
–0.6
–0.8
–1.0
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
TOTAL SUPPLY VOLTAGE (V)
1809 G10
SHDN Pin Current
vs SHDN Pin Voltage
50
VS = 5V, 0V
0
–50
–100
–150
–200
TA = 125°C
TA = –55°C
TA = 25°C
–250
–300
–350
–400
–450
0
1 2 34
SHDN PIN VOLTAGE (V)
5
1809 G13
Open-Loop Gain
2.5
VS = ±5V
2.0
1.5
1.0
0.5
RL = 1k
0
–0.5
–1.0
RL = 100Ω
–1.5
–2.0
–2.5
–5 –4 –3 –2 –1 0 1 2 3 4 5
OUTPUT VOLTAGE (V)
1809 G16
Output Short-Circuit Current
vs Power Supply Voltage
120
100 TA = –55°C TA = 25°C
80
60 TA = 125°C
“SINKING”
40
20
0
–20
“SOURCING”
–40
–60 TA = –55°C TA = 125°C
–80
–100 TA = 25°C
1.5 2.0 2.5 3.0 3.5 4.0 4.5
POWER SUPPLY VOLTAGE (±V)
5.0
1809 G11
Open-Loop Gain
2.5
VS = 3V, 0V
2.0
1.5
1.0
0.5
RL = 1k
0
–0.5
–1.0
RL = 100Ω
–1.5
–2.0
–2.5
0
0.5 1.0 1.5 2.0 2.5
OUTPUT VOLTAGE (V)
3.0
1809 G14
Offset Voltage vs Output Current
15
VS = ±5V
10
TA = 25°C
5
TA = 125°C
0
TA = –55°C
–5
–10
–15
–100–80 –60 –40 –20 0 20 40 60 80 100
OUTPUT CURRENT (mA)
1809 G17
LT1809/LT1810
Supply Current
vs SHDN Pin Voltage
18
VS = 5V, 0V
16
14
TA = 125°C
12
TA = 25°C
10
8
6
4
TA = –55°C
2
0
0 1 2 345
SHDN PIN VOLTAGE (V)
1809 G12
Open-Loop Gain
2.5
VS = 5V, 0V
2.0
1.5
1.0
0.5
RL = 1k
0
–0.5
–1.0
RL = 100Ω
–1.5
–2.0
–2.5
0
1234
OUTPUT VOLTAGE (V)
5
1809 G15
Warm-Up Drift vs Time (LT1809S8)
180
TA = 25°C
160
140
VS = ±5V
120
100
80 VS = 5V, 0V
60
VS = 3V, 0V
40
20
0
0 20 40 60 80 100 120 140 160
TIME AFTER POWER UP (SEC)
1809 G18
11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet LT1809.PDF ] | |
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