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PDF LT1807 Data sheet ( Hoja de datos )
| Número de pieza | LT1807 | |
| Descripción | Low Noise Precision Op Amps | |
| Fabricantes | Linear | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LT1807 (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
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LT1806/LT1807
FEATURES
325MHz, Single/Dual,
Rail-to-Rail Input and Output, Low Distortion,
Low Noise Precision Op Amps
DESCRIPTION
n Gain-Bandwidth Product: 325MHz
n Slew Rate: 140V/μs
n Wide Supply Range: 2.5V to 12.6V
n Large Output Current: 85mA
n Low Distortion, 5MHz: –80dBc
n Low Voltage Noise: 3.5nV/√Hz
n Input Common Mode Range Includes Both Rails
n Output Swings Rail-to-Rail
n Input Offset Voltage (Rail-to-Rail): 550μV Max
n Common Mode Rejection: 106dB Typ
n Power Supply Rejection: 105dB Typ
n Unity-Gain Stable
n Power Down Pin (LT1806)
n Operating Temperature Range: – 40°C to 85°C
n Single in SO-8 and 6-Pin Low Profile (1mm)
ThinSOT™ Packages
n Dual in SO-8 and 8-Pin MSOP Packages
APPLICATIONS
n Low Voltage, High Frequency Signal Processing
n Driving A/D Converters
n Rail-to-Rail Buffer Amplifiers
n Active Filters
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.
The LT®1806/LT1807 are single/dual low noise rail-to-rail
input and output unity-gain stable op amps that feature a
325MHz gain-bandwidth product, a 140V/μs slew rate and
a 85mA output current. They are optimized for low voltage,
high performance signal conditioning systems.
The LT1806/LT1807 have a very low distortion of – 80dBc
at 5MHz, a low input referred noise voltage of 3.5nV/√Hz
and a maximum offset voltage of 550μV that allows them to
be used in high performance data acquisition systems.
The LT1806/LT1807 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 LT1806/LT1807 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 LT1806 is available in an 8-pin SO package with the
standard op amp pinout and a 6-pin TSOT-23 package. The
LT1807 features the standard dual op amp pinout and is
available in 8-pin SO and MSOP packages.These devices
can be used as plug-in replacements for many op amps
to improve input/output range and performance.
TYPICAL APPLICATION
Gain of 20 Differential A/D Driver
+
1/2 LT1807
– R2
909Ω
5V
R1 R5
VIN
100Ω
C1 5.6pF
C2 5.6pF
49.9Ω
C3
470pF
+AVIN LTC®1420
PGA GAIN = 1
–AVIN VREF = 4.096V
12 BITS
10Msps
R6
49.9Ω
R3
100Ω
–
R4
1k
–5V
18067 TA01
1/2 LT1807
+
4096 Point FFT Response
0
VS = p5V
AV = 20
–20 fSAMPLE = 10Msps
fIN = 1.4086MHz
SFDR = 83dB
–40 NONAVERAGED
VIN = 200mVP-P
–60
–80
–100
–120
0
1234
FREQUENCY (MHz)
5
18067 TA02
18067fc
1
1 page  
LT1806/LT1807
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
Input Bias Current Match (Channel-to-Channel) VCM = V+ – 0.2V
(Note 10)
VCM = V – + 0.4V
IOS Input Offset Current
VCM
VCM
=
=
V
V
+
–
–
+
0.2V
0.4V
ΔIOS Input Offset Current Shift
VCM = V – + 0.4V to V+ – 0.2V
l
0.03 1.5
μA
l
0.05 3.5
μA
l
0.03 0.75
μA
l
0.05 1.80
μA
l
0.08 2.55
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
l
l
60
7.5
45
175
20
140
CMRR Common Mode Rejection Ratio
VS
VS
=
=
5V,
3V,
VCM
VCM
=
=
V
V
–
–
to
to
V+
V+
l 77
l 72
94
89
CMRR Match (Channel-to-Channel) (Note 10)
VS
VS
=
=
5V,
3V,
VCM
VCM
=
=
V
V
–
–
to
to
V+
V+
l 71
l 66
94
89
Input Common Mode Range
l V–
V+
V/mV
V/mV
V/mV
dB
dB
dB
dB
V
PSRR
VOL
VOH
ISC
IS
ISHDN
VL
VH
tON
tOFF
GBW
Power Supply Rejection Ratio
PSRR Match (Channel-to-Channel) (Note 10)
Minimum Supply Voltage (Note 6)
Output Voltage Swing Low (Note 7)
Output Voltage Swing High (Note 7)
Short-Circuit Current
Supply Current per Amplifier
Disable Supply Current
SHDN Pin Current
Shutdown Output Leakage Current
SHDN Pin Input Voltage Low
SHDN Pin Input Voltage High
Turn-On Time
Turn-Off Time
Gain-Bandwidth Product
VS = 2.5V to 10V, VCM = 0V
VS = 2.5V to 10V, VCM = 0V
VCM = VO = 0.5V
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
VS = 5V, VSHDN = 0.3V
VS = 3V, VSHDN = 0.3V
VSHDN = 0.3V
VSHDN = 0.3V to 4.5V, RL = 100Ω
VSHDN = 4.5V to 0.3V, RL = 100Ω
Frequency = 6MHz
l 88
l 82
l
l
l
l
l
l
l
l ±30
l ±25
l
l
l
l
l
l
l
l V+ – 0.5
l
l
l
105
105
2.3
12
60
180
30
110
360
±65
±55
10
0.40
0.22
160
110
1
80
50
300
2.5
60
140
425
120
220
700
14
1.1
0.9
400
350
0.3
dB
dB
V
mV
mV
mV
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 = 4V
VS = 5V, VO = 4VP-P
l
l
100
8
V/μs
MHz
18067fc
5
5 Page 
LT1806/LT1807
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the −40°C < TA < 85°C
temperature range. VS = ±5V, VSHDN = open; VCM = 0V, VOUT = 0V, unless otherwise noted. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
tOFF Turn-Off Time
GBW Gain-Bandwidth Product
VSHDN = 4.5V to 0.3V, RL = 100Ω
Frequency = 6MHz
l
l 125
50
290
ns
MHz
SR
FPBW
Slew Rate
Full-Power Bandwidth
AV = –1, RL = 1k, VO = ±4V,
Measure at VO = ±3V
VO = 8VP-P
l 50
l
100
4
V/μs
MHz
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The inputs are protected by back-to-back diodes. If the differential
input voltage exceeds 1.4V, the input current should be limited to less
than 10mA. This parameter is guaranteed to meet specified performance
through design and/or characterization. It is not 100% tested.
Note 3: A heat sink may be required to keep the junction temperature below
the absolute maximum rating when the output is shorted indefinitely.
Note 4: The LT1806C/LT1806I and LT1807C/LT1807I are guaranteed
functional over the temperature range of –40°C and 85°C.
Note 5: The LT1806C/LT1807C are guaranteed to meet specified
performance from 0°C to 70°C. The LT1806C/LT1807C are designed,
characterized and expected to meet specified performance from –40°C to
85°C but are not tested or QA sampled at these temperatures. The LT1806I/
LT1807I are guaranteed to meet specified performance from –40°C to 85°C.
Note 6: Minimum supply voltage is guaranteed by power supply rejection
ratio test.
Note 7: Output voltage swings are measured between the output and
power supply rails.
Note 8: This parameter is not 100% tested.
Note 9: Thermal resistance varies depending upon the amount of PC board
metal attached to the V – pin of the device. θJA is specified for a certain
amount of 2oz copper metal trace connecting to the V – pin as described in
the thermal resistance tables in the Applications Information section.
Note 10: Matching parameters are the difference between the two
amplifiers of the LT1807.
TYPICAL PERFORMANCE CHARACTERISTICS
VOS Distribution, VCM = 0V
(PNP Stage)
50
VS = 5V, 0V
VCM = 0V
40
30
20
10
0
–500
–300 –100 100 300
INPUT OFFSET VOLTAGE (μV)
500
18067 G01
VOS Distribution, VCM = 5V
(NPN Stage)
50
VS = 5V, 0V
VCM = 5V
40
30
20
10
0
–500
–300 –100 100 300
INPUT OFFSET VOLTAGE (μV)
500
18067 G02
ΔVOS Shift for VCM = 0V to 5V
50
VS = 5V, 0V
40
30
20
10
0
–500
–300 –100 100 300
INPUT OFFSET VOLTAGE (μV)
500
18067 G03
18067fc
11
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet LT1807.PDF ] | |
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