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AD7982 Datasheet(PDF) 3 Page - Analog Devices

Part No. AD7982
Description  Precision, Selectable Gain, Fully Differential Funnel Amplifier
Download  24 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD7982 Datasheet(HTML) 3 Page - Analog Devices

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AD8475
Rev. B | Page 3 of 24
SPECIFICATIONS
VS = 5 V, G = 0.4, VOCM connected to 2.5 V, RL = 1 kΩ differentially, TA = 25°C, referred to output (RTO), unless otherwise noted.
Table 1.
B Grade
A Grade
Parameter
Test Conditions/Comments
Min
Typ
Max
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
−3 dB Small Signal
Bandwidth
150
150
MHz
−3 dB Large Signal
Bandwidth
15
15
MHz
Slew Rate
2 V step
50
50
V/μs
Settling Time to 0.01%
2 V step on output
45
45
ns
Settling Time to 0.001%
2 V step on output
50
50
ns
NOISE/DISTORTION1
THD + N
f = 100 kHz, VOUT = 4 V p-p,
22 kHz band-pass filter
−112
−112
dB
HD2
f = 1 MHz, VOUT = 2 V p-p
−110
−110
dB
HD3
f = 1 MHz, VOUT = 2 V p-p
−96
−96
dB
IMD3
f1 = 0.95 MHz, f2 = 1.05 MHz,
VOUT = 2 V p-p
−90
−90
dBc
IMD3
f1 = 95 kHz, f2 = 105 kHz,
VOUT = 2 V p-p
−84
−84
dBc
Output Voltage Noise
f = 0.1 Hz to 10 Hz
2.5
2.5
μV p-p
Spectral Noise Density
f = 1 kHz
10
10
nV/√Hz
GAIN
0.4
0.4
V/V
Gain Error
RL = ∞
0.02
0.05
%
Gain Drift
−40°C ≤ TA ≤ +85°C
1
3
1
3
ppm/°C
Gain Nonlinearity
VOUT = 4 V p-p
2.5
2.5
ppm
OFFSET AND CMRR
Offset2
RTO
50
200
50
500
μV
vs. Temperature
−40°C ≤ TA ≤ +85°C
2.5
2.5
μV/°C
vs. Power Supply
VS = ±2.5 V to ±5 V
90
90
dB
Common-Mode Rejection
Ratio
VINcm = ±5 V
86
76
dB
INPUT CHARACTERISTICS
Input Voltage Range3
Differential input
−6.25
+6.25
−6.25
+6.25
V
Single-ended input
−12.5
+12.5
−12.5
+12.5
V
Impedance4
VINcm = VS/2
Single-Ended Input
2.92
2.92
Differential Input
5
5
Common Mode Input
1.75
1.75
OUTPUT CHARACTERISTICS
Output Swing
−VS +
0.05
+VS
0.05
−VS +
0.05
+VS
0.05
Output Balance Error
∆VOUT,cm/∆VOUT,dm
90
−80
dB
Output Impedance
0.1
0.1
Ω
Capacitive Load
Per output
30
30
pF
Short-Circuit Current Limit
110
110
mA
VOCM CHARACTERISTICS
VOCM Input Voltage Range
−VS + 1
+VS
−VS + 1
+VS
V
VOCM Input Impedance
100
100
VOCM Gain Error
0.02
0.02
%


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