Datasheet

Data Sheet AD8137
Rev. E | Page 5 of 32
V
S
= 5 V, V
OCM
= 2.5 V (@ 25°C, differential gain = 1, R
L, dm
= R
F
= R
G
= 1 kΩ, unless otherwise noted, T
MIN
to T
MAX
= −40°C to +125°C).
Table 2.
Parameter Conditions Min Typ Max Unit
DIFFERENTIAL INPUT PERFORMANCE
Dynamic Performance
−3 dB Small Signal Bandwidth V
O, dm
= 0.1 V p-p 63 75 MHz
AD8137W only: T
MIN
-T
MAX
61
MHz
−3 dB Large Signal Bandwidth V
O, dm
= 2 V p-p 76 107 MHz
AD8137W only: T
MIN
-T
MAX
76 MHz
Slew Rate V
O, dm
= 2 V step 375 V/µs
Settling Time to 0.02% V
O, dm
= 3.5 V step 110 ns
Overdrive Recovery Time G = 2, V
I, dm
= 7 V p-p triangle wave 90 ns
Noise/Harmonic Performance
SFDR V
O, dm
= 2 V p-p, f
C
= 500 kHz 89 dB
V
O, dm
= 2 V p-p, f
C
= 2 MHz 73 dB
Input Voltage Noise f = 50 kHz to 1 MHz 8.25 nV/√Hz
Input Current Noise f = 50 kHz to 1 MHz 1 pA/√Hz
DC Performance
Input Offset Voltage V
IP
= V
IN
= V
OCM
= 0 V −2.7 ±0.7 +2.7 mV
AD8137W only: T
MIN
-T
MAX
−5.0 +5.0 mV
Input Offset Voltage Drift T
MIN
to T
MAX
3 µV/°C
Input Bias Current T
MIN
to T
MAX
0.5 0.9 µA
Input Offset Current 0.1 0.45 µA
AD8137W only: T
MIN
-T
MAX
0.45 µA
Open-Loop Gain 89 dB
Input Characteristics
Input Common-Mode Voltage Range 1 4 V
AD8137W only: T
MIN
-T
MAX
1 4 V
Input Resistance
Differential
800
kΩ
Common-mode 400 kΩ
Input Capacitance Common-mode 1.8 pF
CMRR ΔV
ICM
= ±1 V 64 90 dB
AD8137W only: T
MIN
-T
MAX
64 dB
Output Characteristics
Output Voltage Swing
Each single-ended output, R
L, dm
= 1 kΩ
V
S−
+ 0.45
V
S+
− 0.45
V
AD8137W only: T
MIN
-T
MAX
V
S−
+ 0.45 V
S+
− 0.45 V
Output Current 20 mA
Output Balance Error f = 1 MHz −64 dB
V
OCM
to V
O, cm
PERFORMANCE
V
OCM
Dynamic Performance
−3 dB Bandwidth V
O, cm
= 0.1 V p-p 60 MHz
Slew Rate V
O, cm
= 0.5 V p-p 61 V/µs
Gain
0.980
1.000
1.020
V/V
AD8137W only: T
MIN
-T
MAX
0.975 1.020 V/V
V
OCM
Input Characteristics
Input Voltage Range 1 4 V
AD8137W only: T
MIN
-T
MAX
1 4 V
Input Resistance 35 kΩ
Input Offset Voltage
−25
±7.5
+25
mV
AD8137W only: T
MIN
-T
MAX
−25 +25 mV