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PDF LT1809IS8 Data sheet ( Hoja de datos )
| Número de pieza | LT1809IS8 | |
| Descripción | 180MHz/ 350V/ms Rail-to-Rail Input and Output Low Distortion Op Amp | |
| 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
s 8-Pin SO-8 Package
s Operating Temperature Range – 40°C to 85°C
U
APPLICATIO S
s Active Filters
s Rail-to-Rail Buffer Amplifiers
s Driving A/D Converters
s Low Voltage Signal Processing
s Video Line Driver
Final Electrical Specifications
LT1809
180MHz, 350V/µs
Rail-to-Rail Input and Output
Low Distortion Op Amp
January 2000
DESCRIPTIO
The LT®1809 is a low distortion rail-to-rail input and
output op amp with a 350V/µs slew rate. The amplifier has
a –3dB bandwidth of 320MHz at unity-gain, a gain-band-
width product of 180MHz (AV ≥ 10) and an 85mA output
current to fit the needs of low voltage, high performance
signal conditioning systems.
The LT1809 has 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 has very low distortion (–90dBc) up to 5MHz
that allows it to be used in high performance data acqui-
sition systems.
The LT1809 maintains its performance for supplies from
2.5V to 12.6V and is 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. This device can be used as a plug-
in replacement for many op amps to improve input/output
range and performance.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
Single 3V Supply, 4MHz, 4th Order Butterworth Filter
232Ω
47pF
232Ω
VIN
665Ω
220pF
VS
2
–
LT1809
+
274Ω
22pF
274Ω
562Ω
470pF
–
LT1809
+
VOUT
1809 TA01
Filter Frequency Response
10
0
–10
–20
–30
–40
–50
–60
–70
VS = 3V, 0V
–80 VIN = 2.5VP-P
–90
10k 100k 1M 10M
FREQUENCY (Hz)
100M
1809 TA01a
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
1
1 page  
LT1809
ELECTRICAL CHARACTERISTICS
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
GBW Gain-Bandwidth Product
SR Slew Rate
CONDITIONS
Frequency = 2MHz
VS = 5V, AV = -1, RL = 1k, VO = 4VP-P
MIN TYP MAX UNITS
q 140
MHz
q 180
V/µs
TA = 25°C. VS = ±5V, VSHDN = open, VCM = 0V, VOUT = 0V unless otherwise noted.
SYMBOL PARAMETER
VOS Input Offset Voltage
∆Vos
IB
Input Offset Voltage Shift
Input Bias Current
∆IB Input Bias Current Shift
IOS Input Offset Current
∆IOS Input Offset Current Shift
en Input Noise Voltage Density
in Input Noise Current Density
Cin Input Capacitance
AVOL Large-Signal Voltage Gain
CMRR
PSRR
VOL
Common Mode Rejection Ratio
Input Common Mode Range
Power Supply Rejection Ratio
Output Voltage Swing LOW (Note 7)
VOH Output Voltage Swing HIGH (Note 7)
ISC Short-Circuit Current
IS Supply Current
Disable Supply Current
GBW Gain-Bandwidth Product
SR Slew Rate
HD Total Harmonic Distortion
tS Settling Time
∆G Differential Gain (NTSC)
∆θ Differential Phase (NTSC)
CONDITIONS
VCM = V +
VCM = V –
VCM = V – to V +
VCM = V +
VCM = V –
VCM = V – to V +
VCM = V+
VCM = V –
VCM = V – to V +
f = 10kHz
f = 10kHz
f = 100kHz
VO = – 4V to 4V, RL = 1k
VO = – 2.5V to 2.5V, RL = 100Ω
VCM = V – to V +
V + = 2.5V to 10V, V – = 0V
No Load
ISINK = 5mA
ISINK = 25mA
No Load
ISOURCE = 5mA
ISOURCE = 25mA
VSHDN = 0V
Frequency = 2MHz
AV = –1, RL = 1k, VO = ±4V,
Measure at VO = ±3V
AV = 1, RL = 1k, VO = 2VP-P, fC = 5MHz
0.01%, VSTEP = 5V, AV = 1, RL = 1k
AV = 2, RL = 150
MIN TYP MAX UNITS
0.8 3
0.8 3
mV
mV
0.35 2
mV
2
– 30 –12.5
10
µA
µA
13.5 42.5
µA
0.05 2
0.4 5
µA
µA
0.45 7
µA
16 nV/√Hz
5 pA/√Hz
2 pF
45 100
5 12
V/mV
V/mV
73 89
V– V+
dB
V
73 87
dB
8 30
46 100
170 350
mV
mV
mV
30 60
90 200
310 600
mV
mV
mV
±60 ±85
mA
15 20
mA
0.6 0.9
mA
120 180
MHz
175 350
V/µs
– 90 dB
60 nS
0.01 %
0.01 %
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LT1809IS8.PDF ] | |
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