AD641ANZ データシートの表示（PDF） - Analog Devices
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AD641ANZ Datasheet PDF : 17 Pages
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AD641–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (VS = ؎5 V; TA = +25؇C, unless otherwise noted)
Parameter
Conditions
AD641A
Min Typ Max
AD641S
Min Typ
Max
Units
TRANSFER FUNCTION1
LOG AMPLIFIER PERFORMANCE
3 dB Bandwidth
Voltage Compliance Range
Slope Current, IY
Accuracy vs. Temperature
Over Temperature
Intercept dBm
Over Temperature
Zero Signal Output Current2
ITC Disabled
Maximum Output Current
TMIN to TMAX
250 MHz
TMIN to TMAX, 250 MHz
Pin 8 to COM
(IOUT = IY LOG |VIN/VX|for VIN = 0.75 mV to ±200 mV dc)
250
250
–0.3
+VS – 1 –0.3
0.98 1.00 1.02 0.98 1.00
0.002
0.002
0.96
–41.06 –40.51 –39.96 –41.06 –40.51
–41.34
–0.2
–0.2
–0.27
–0.27
2.3
+VS – 1
1.02
1.02
–39.96
–39.47
2.3
MHz
V
mA
%/°C
mA
dBm
dBm
mA
mA
mA
DYNAMIC RANGE
Single Configuration
Over Temperature
Dual Configuration
Over Temperature
LOG CONFORMANCE
Single Configuration
Over Temperature
Dual Configuration
Over Temperature
LIMITER CHARACTERISTICS
Flatness
Phase Variation
TMIN to TMAX
TMIN to TMAX
f = 250 MHz
–44 dBm to 0 dBm
–42 dBm to –4 dBm; TMIN to TMAX
–42 dBm to –2 dBm, TMIN to TMAX
S: –60 dBm to –2 dBm;
A: –56 dBm to –4 dBm, TMIN to TMAX
–44 dBm to 0 dBm @ 10.7 MHz
–44 dBm to 0 dBm @ 10.7 MHz
44
40
58
52
± 0.5 ± 2.0
±1.0 ±2.5
± 0.5 ± 2.0
±1.0 ±2.5
± 1.6
± 2.0
44
dB
38
dB
58
dB
52
dB
± 0.5 ± 2.0 dB
±1.0 ±2.5 dB
± 0.5 ± 2.0 dB
±1.0 ±2.5 dB
± 1.6
dB
± 2.0
Degrees
INPUT CHARACTERISTICS
Input Resistance
Input Offset Voltage
vs. Temperature
Over Temperature
vs. Supply
Input Bias Current
Input Bias Offset
Common Mode Input Range
Differential
Differential
TMIN to TMAX
500
500
kΩ
50 200
50
200
µV
0.8
0.8
µV/°C
300
µV
2
2
µV/V
7
25
7
25
µA
1
1
µA
–2
+0.3 –2
+0.3 V
SIGNAL INPUT (Pins 1, 20)
Input Capacitance
Noise Spectral Density
Tangential Sensitivity
Either Pin to COM
1 kHz to 10 MHz
BW = 100 MHz
2
2
pF
2
2
nV/√Hz
–72
–72
dBm
INPUT ATTENUATOR
(Pins 2, 3, 4, 5 & 19)
Attenuation3
Input Resistance
Pins 5 to Pin 19
Pins 5 to 3/4
20
20
dB
300
300
Ω
APPLICATION RESISTORS
(Pins 15, 16, 17)
0.995 1.000 1.005 0.995 1.000 1.005 kΩ
OUTPUT CHARACTERISTICS
(Pins 10, 11)
Peak Differential Output4
Output Resistance
Quiescent Output Voltage
Either Pin to COM
Either Pin to COM
± 180
75
–90
± 180
mV
75
Ω
–90
mV
POWER SUPPLY
Voltage Supply Range
Quiescent Current
+VS (Pin 12)
–VS (Pin 7)
TMIN to TMAX
TMIN to TMAX
± 4.5
9
35
± 7.5 ± 4.5
15
9
60
35
± 7.5 V
15
mA
60
mA
NOTES
1Logarithms to base 10 are used throughout. The response is independent of the sign of VIN.
2The zero-signal current is a function of temperature unless internal temperature compensation (ITC) pin is grounded.
3Attenuation ratio trimmed to calibrate intercept to 10 mV when in use. It has a temperature coefficient of +0.3%/°C.
4The fully limited signal output will appear to be a square wave; its amplitude is proportional to absolute temperature.
Specifications subject to change without notice.
–2–
REV. D
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