Datasheet

Data Sheet ADA4937-1/ADA4937-2
Rev. D | Page 3 of 28
SPECIFICATIONS
5 V OPERATION
T
A
= 25°C, +V
S
= 5 V, −V
S
= 0 V, V
OCM
= +V
S
/2, R
T
= 61.9 Ω, R
G
= R
F
= 200 Ω, G = +1, R
L, dm
= 1 kΩ, unless otherwise noted. All specifica-
tions refer to single-ended input and differential outputs, unless otherwise noted.
±D
IN
to ±OUT Performance
Table 1.
Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth V
OUT, dm
= 0.1 V p-p 1900 MHz
Bandwidth for 0.1 dB Flatness V
OUT, dm
= 0.1 V p-p 200 MHz
Large Signal Bandwidth V
OUT, dm
= 2 V p-p 1700 MHz
Slew Rate V
OUT, dm
= 2 V p-p; 25% to 75% 6000 V/µs
Settling Time V
OUT, dm
= 2 V p-p 7 ns
Overdrive Recovery Time V
IN
= 0 V to 1.5 V step; G = 3.16 <1 ns
NOISE/HARMONIC PERFORMANCE See Figure 51 for distortion test circuit
Second Harmonic V
OUT, dm
= 2 V p-p; 10 MHz −112 dBc
V
OUT, dm
= 2 V p-p; 70 MHz −84 dBc
V
OUT, dm
= 2 V p-p; 100 MHz −77 dBc
Third Harmonic V
OUT, dm
= 2 V p-p; 10 MHz −102 dBc
V
OUT, dm
= 2 V p-p; 70 MHz −91 dBc
V
OUT, dm
= 2 V p-p; 100 MHz −84 dBc
IMD
f
1
= 70 MHz; f
2
= 70.1 MHz; V
OUT, dm
= 2 V p-p
−91
dBc
Voltage Noise (RTI) f = 100 kHz 2.2 nV/√Hz
Input Current Noise f = 100 kHz 4 pA/√Hz
Noise Figure G = 4; R
T
= 136 Ω; R
F
= 200 Ω; R
G
= 37 Ω; f = 100 MHz 15 dB
Crosstalk (ADA4937-2) f = 100 MHz −72 dB
INPUT CHARACTERISTICS
Offset Voltage V
OS, dm
= V
OUT, dm
/2; V
DIN+
= V
DIN−
= 2.5 V −2.5 ±0.5 +2.5 mV
T
MIN
to T
MAX
variation ±1 µV/°C
Input Bias Current −50 −30 −10 µA
T
MIN
to T
MAX
variation 0.01 µA/°C
Input Offset Current −2 +0.5 +2 µA
Input Resistance Differential 6 MΩ
Common mode 3 MΩ
Input Capacitance 1 pF
Input Common-Mode Voltage
0.3 to 3.0
V
CMRR ∆V
OUT, dm
/∆V
IN, cm
; ∆V
IN, cm
= ±1 V −69 −80 dB
OUTPUT CHARACTERISTICS
Output Voltage Swing Maximum ∆V
OUT
; single-ended output; R
F
= R
G
= 10 kΩ 0.9 4.1 V
Linear Output Current Per amplifier; R
L, dm
= 20 Ω; f = 10 MHz ±70 mA
Output Balance Error
∆V
OUT, cm
/∆V
OUT, dm
; ∆V
OUT, dm
= 1 V; f = 10 MHz;
see Figure 50 for test circuit
−61 dB