Datasheet

ADA4940-1/ADA4940-2 Data Sheet
Rev. C | Page 4 of 32
SPECIFICATIONS
V
S
= 5 V
V
OCM
= Mid Supply, R
F
= R
G
= 1 kΩ, R
L, dm
= 1 kΩ, T
A
= 25°C, LFCSP package, unless otherwise noted. T
MIN
to T
MAX
= −40°C to +125°C.
(See Figure 61 for the definition of terms.)
+D
IN
or –D
IN
to V
OUT, dm
Performance
Table 3.
Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth V
OUT, dm
= 0.1 V p-p, G = 1 260 MHz
V
OUT, dm
= 0.1 V p-p, G = 2 220 MHz
V
OUT, dm
= 0.1 V p-p, G = 5 75 MHz
−3 dB Large Signal Bandwidth V
OUT, dm
= 2 V p-p, G = 1 25 MHz
V
OUT, dm
= 2 V p-p, G = 2 22 MHz
V
OUT, dm
= 2 V p-p, G = 5 19 MHz
Bandwidth for 0.1 dB Flatness V
OUT, dm
= 2 V p-p, G = 1 and G = 2 14.5 MHz
Slew Rate V
OUT, dm
= 2 V step 95 V/µs
Settling Time to 0.1% V
OUT, dm
= 2 V step 34 ns
Overdrive Recovery Time G = 2, V
IN, dm
= 6 V p-p, triangle wave 86 ns
NOISE/HARMONIC PERFORMANCE
HD2/HD3 V
OUT, dm
= 2 V p-p, f
C
= 10 kHz −125/−118 dBc
V
OUT, dm
= 2 V p-p, f
C
= 50 kHz −123/−126 dBc
V
OUT, dm
= 2 V p-p, f
C
= 50 kHz, G = 2 −124/−117 dBc
V
OUT, dm
= 2 V p-p, f
C
= 1 MHz −102/−96 dBc
V
OUT, dm
= 2 V p-p, f
C
= 1 MHz, G = 2 −100/–92 dBc
IMD3 V
OUT, dm
= 2 V p-p, f
1
= 1.9 MHz, f
2
= 2.1 MHz −99 dBc
Input Voltage Noise f = 100 kHz 3.9 nV/√Hz
Input Current Noise f = 100 kHz 0.81 pA/√Hz
Crosstalk V
OUT, dm
= 2 V p-p, f
C
= 1 MHz −110 dB
INPUT CHARACTERISTICS
Input Offset Voltage V
IP
= V
IN
= V
OCM
= 0 V −0.35 ±0.06 +0.35 mV
Input Offset Voltage Drift
T
MIN
to T
MAX
1.2
µV/°C
Input Bias Current −1.6 −1.1 µA
Input Bias Current Drift T
MIN
to T
MAX
−4.5 nA/°C
Input Offset Current −500 ±50 +500 nA
Input Common-Mode Voltage Range −V
S
− 0.2 to
+V
S
− 1.2
V
Input Resistance
Differential
33
kΩ
Common mode 50 MΩ
Input Capacitance 1 pF
Common-Mode Rejection Ratio (CMRR) ΔV
OS, dm
/ΔV
IN, cm
, ∆V
IN, cm
= ±1 V dc 86 119 dB
Open-Loop Gain 91 99 dB
OUTPUT CHARACTERISTICS
Output Voltage Swing Each single-ended output −V
S
+ 0.1 to
+V
S
− 0.1
−V
S
+ 0.07 to
+V
S
− 0.07
V
Linear Output Current
f = 1 MHz, R
L, dm
= 22 Ω, SFDR = −60 dBc
46
mA peak
Output Balance Error f = 1 MHz, ΔV
OUT, cm
/ΔV
OUT, dm
−65 −60 dB