Datasheet

ADA4940-1/ADA4940-2 Data Sheet
Rev. C | Page 6 of 32
V
S
= 3 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 6.
Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth V
OUT, dm
= 0.1 V p-p 240 MHz
V
OUT, dm
= 0.1 V p-p, G = 2 200 MHz
V
OUT, dm
= 0.1 V p-p, G = 5
70
MHz
−3 dB Large Signal Bandwidth V
OUT, dm
= 2 V p-p 24 MHz
V
OUT, dm
= 2 V p-p, G = 2 20 MHz
V
OUT, dm
= 2 V p-p, G = 5 17 MHz
Bandwidth for 0.1 dB Flatness V
OUT, dm
= 0.1 V p-p 14 MHz
Slew Rate V
OUT, dm
= 2 V step 90 V/µs
Settling Time to 0.1% V
OUT, dm
= 2 V step 37 ns
Overdrive Recovery Time G = 2, V
IN, dm
= 3.6 V p-p, triangle wave 85 ns
NOISE/HARMONIC PERFORMANCE
HD2/HD3 V
OUT, dm
= 2 V p-p, f
C
= 50 kHz (HD2/HD3) −115/−121 dBc
V
OUT, dm
= 2 V p-p, f
C
= 1 MHz (HD2/HD3) −104/−96 dBc
IMD3 V
OUT, dm
= 2 V p-p, f
1
= 1.9 MHz, f
2
= 2.1 MHz −98 dBc
Input Voltage Noise f = 100 kHz 3.9 nV/√Hz
Input Current Noise f = 100 kHz 0.84 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
= 1.5 V −0.4 ±0.06 +0.4 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
= ±0.25 V dc 86 114 dB
Open-Loop Gain
91
99
dB
OUTPUT CHARACTERISTICS
Output Voltage Swing Each single-ended output −V
S
+ 0.08 to
+V
S
− 0.08
−V
S
+ 0.04 to
+V
S
− 0.04
V
Linear Output Current
f = 1 MHz, R
L, dm
= 26 Ω, SFDR = −60 dBc
38
mA peak
Output Balance Error f = 1 MHz, ΔV
OUT, cm
/ΔV
OUT, dm
−65 −60 dB