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THS4508 Fiches technique(PDF) 4 Page - Texas Instruments

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No de pièce THS4508
Description  WIDEBAND, LOW NOISE, LOW DISTORTION FULLY DIFFERENTIAL AMPLIFIER
Download  29 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

THS4508 Fiches technique(HTML) 4 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS; V
S+– VS– = 5 V:
THS4508
SLAS459A – SEPTEMBER 2005 – REVISED FEBRUARY 2006
Test conditions unless otherwise noted: V
S+ = 5 V, VS– = 0 V, G = 10 dB, CM = open, VO = 2 Vpp, RF = 349 Ω, RL = 200 Ω
Differential, T = 25
°C Single-Ended Input, Differential Output, Input Referenced to Ground, and Output Referenced to
Mid-supply
TEST
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
LEVEL(1)
AC PERFORMANCE (Figure 44)
G = 6 dB, VO = 100 mVPP
2
GHz
G = 10 dB, VO = 100 mVPP
1.7
GHz
Small-Signal Bandwidth
G = 14 dB, VO = 100 mVPP
600
MHz
G = 20 dB, VO = 100 mVPP
300
MHz
Gain-Bandwidth Product
G = 20 dB
3
GHz
Bandwidth for 0.1dB flatness
G = 10 dB, VO = 2 VPP
400
MHz
Large-Signal Bandwidth
G = 10 dB, VO = 2 VPP
1.5
GHz
Slew Rate (Differential)
6400
V/µs
Rise Time
VO = 2-V Step
0.5
ns
Fall Time
0.5
ns
Settling Time to 0.1%
2
ns
f = 10 MHz
–104
f = 50 MHz
–82
2nd Order Harmonic Distortion
f = 100 MHz
–69
dBc
f = 10 MHz
–105
C
f = 50 MHz
–92
3rd Order Harmonic Distortion
f = 100 MHz
–81
fC = 70 MHz
–78
2nd Order Intermodulation Distortion
fC = 140 MHz
–64
200 kHz tone spacing,
dBc
RL = 499 Ω
fC = 70 MHz
–95
3rd Order Intermodulation Distortion
fC = 140 MHz
–78
fC = 70 MHz
78
2nd Order Output Intercept Point
fC = 140 MHz
58
200 kHz tone spacing,
dBm
RL = 100 Ω
fC = 70 MHz
42
3rd Order Output Intercept Point
fC = 140 MHz
35
fC = 70 MHz
12.2
1-dB Compression Point(2)
dBm
fC = 140 MHz
10.8
Noise Figure
50-
Ω system, 10 MHz
19.2
dB
Input Voltage Noise
f > 10 MHz
2.3
nV/
√Hz
Input Current Noise
f > 10 MHz
2.9
pA/
√Hz
DC PERFORMANCE
Open-Loop Voltage Gain (AOL)
68
dB
C
TA = 25°C
1
4
Input Offset Voltage
mV
A
TA = -40°C to 85°C
1
5
Average Offset Voltage Drift
2.3
µA/°C
B
TA = 25°C
1.75
8
15.5
Input Bias Current
µA
A
TA = -40°C to 85°C
8
18.5
Average Bias Current Drift
20
nA/°C
B
TA = 25°C
0.5
3.6
Input Offset Current
µA
A
TA = -40°C to 85°C
0.5
7
Average Offset Current Drift
7
nA/°C
B
(1)
Test levels: (A) 100% tested at 25°C. Overtemperature limits by characterization and simulation. (B) Limits set by characterization and
simulation. (C) Typical value only for information.
(2)
The 1-dB compression point is measured at the load with 50-
Ω double termination. Add 3 dB to refer to amplifier output.
4
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