Datasheet

ADA4938-1/ADA4938-2
Rev. A | Page 3 of 28
SPECIFICATIONS
DUAL-SUPPLY OPERATION
T
A
= 25°C, +V
S
= 5 V, −V
S
= −5 V, V
OCM
= 0 V, R
T
= 61.9 , R
G
= R
F
= 200 , G = +1, R
L, dm
= 1 kΩ, unless otherwise noted.
All specifications refer to single-ended input and differential output, unless otherwise noted. For gains other than G = +1, values for R
F
and R
G
are shown in Table 11.
±D
IN
to ±OUT Performance
Table 1.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth V
OUT
= 0.1 V p-p 1000 MHz
Bandwidth for 0.1 dB Flatness V
OUT
= 2 V p-p 150 MHz
Large Signal Bandwidth V
OUT
= 2 V p-p 800 MHz
Slew Rate V
OUT
= 2 V p-p 4700 V/μs
Settling Time V
OUT
= 2 V p-p 6.5 ns
Overdrive Recovery Time V
IN
= 5 V to 0 V step, G = +2 4 ns
NOISE/HARMONIC PERFORMANCE
Second Harmonic V
OUT
= 2 V p-p, 10 MHz −106 dBc
V
OUT
= 2 V p-p, 50 MHz −82 dBc
Third Harmonic V
OUT
= 2 V p-p, 10 MHz −109 dBc
V
OUT
= 2 V p-p, 50 MHz −82 dBc
IMD f
1
= 30.0 MHz, f
2
= 30.1 MHz 89 dBc
IP3 f = 30 MHz, R
L, dm
= 100 Ω 45 dBm
Input Voltage Noise f = 10 MHz 2.6 nV/√Hz
Noise Figure G = +4, f = 10 MHz 15.8 dB
Input Current Noise f = 10 MHz 4.8 pA/√Hz
Crosstalk (ADA4938-2) f = 100 MHz −85 dB
INPUT CHARACTERISTICS
Offset Voltage V
OS, dm
= V
OUT, dm
/2; V
DIN+
= V
DIN−
= 0 V 1 4 mV
T
MIN
to T
MAX
variation ±4 μV/°C
Input Bias Current −18 −13 μA
T
MIN
to T
MAX
variation −0.01 μA/°C
Input Resistance Differential 6 MΩ
Common mode 3 MΩ
Input Capacitance 1 pF
Input Common-Mode Voltage −V
S
+ 0.3 to +V
S
− 1.6 V
CMRR ∆V
OUT, dm
/∆V
IN, cm
; ∆V
IN, cm
= ±1 V, f = 1 MHz −75 dB
OUTPUT CHARACTERISTICS
Output Voltage Swing Maximum ∆V
OUT
; single-ended output −V
S
+ 1.2 to +V
S
− 1.2 V
Linear Output Current Per amplifier, R
L, dm
= 20 Ω, f = 10 MHz ±75 mA
Output Balance Error ∆V
OUT, cm
/∆V
OUT, dm
; ∆V
OUT, dm
= 1 V; f = 10 MHz −60 dB