Datasheet

Data Sheet AD8137
Rev. E | Page 7 of 32
V
S
= 3 V, V
OCM
= 1.5 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 3.
Parameter Conditions Min Typ Max Unit
DIFFERENTIAL INPUT PERFORMANCE
Dynamic Performance
−3 dB Small Signal Bandwidth V
O, dm
= 0.1 V p-p 61 73 MHz
AD8137W only: T
MIN
-T
MAX
58
MHz
−3 dB Large Signal Bandwidth V
O, dm
= 2 V p-p 62 93 MHz
AD8137W only: T
MIN
-T
MAX
62 MHz
Slew Rate V
O, dm
= 2 V step 340 V/µs
Settling Time to 0.02% V
O, dm
= 3.5 V step 110 Ns
Overdrive Recovery Time G = 2, V
I, dm
= 5 V p-p triangle wave 100 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 71 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 −2.75 ±0.7 +2.75 mV
AD8137W only: T
MIN
-T
MAX
−5.25 +5.25 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 0.4 µA
AD8137W only: T
MIN
-T
MAX
0.4
µA
Open-Loop Gain 87 dB
Input Characteristics
Input Common-Mode Voltage Range 1 2 V
AD8137W only: T
MIN
-T
MAX
1 2 V
Input Resistance
Differential
800
kΩ
Common-mode 400 kΩ
Input Capacitance Common-mode 1.8 pF
CMRR ΔV
ICM
= ±1 V 64 80 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−
+ 0.37
V
S+
− 0.37
V
AD8137W only: T
MIN
-T
MAX
V
S−
+ 0.37 V
S+
− 0.37 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 61 MHz
Slew Rate V
O, cm
= 0.5 V p-p 59 V/µs
Gain
0.960
1.00
1.040
V/V
AD8137W only: T
MIN
-T
MAX
0.955 1.040 V/V
V
OCM
Input Characteristics
Input Voltage Range 1.0 2.0 V
AD8137W only: T
MIN
-T
MAX
1.0 2.0 V
Input Resistance 35 kΩ
Input Offset Voltage
−25
±5.5
+25
mV
AD8137W only: T
MIN
-T
MAX
−25 +25 mV
Input Voltage Noise f = 100 kHz to 5 MHz 18 nV/√Hz
Input Bias Current 0.3 0.7 µA
AD8137W only: T
MIN
-T
MAX
0.7 µA