ada4950-1 Analog Devices, Inc., ada4950-1 Datasheet - Page 3

• Manufacturer Part Number: ada4950-1
• Description: Low Power, Selectable Gain Differential Adc Driver, G = 1, 2, 3
• Manufacturer: Analog Devices, Inc.

SPECIFICATIONS
±5 V OPERATION
T
refer to single-ended input and differential outputs, unless otherwise noted. Refer to Figure 52 for signal definitions.
Differential Inputs to V
Table 1.
Parameter
DYNAMIC PERFORMANCE
NOISE/HARMONIC PERFORMANCE
INPUT CHARACTERISTICS
OUTPUT CHARACTERISTICS
A
−3 dB Small-Signal Bandwidth
−3 dB Large-Signal Bandwidth
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
Overdrive Recovery Time
Second Harmonic
Third Harmonic
IMD3
Voltage Noise (Referred to Output)
Crosstalk (ADA4950-2)
Offset Voltage (Referred to Input)
Input Capacitance
Input Common-Mode Voltage Range
CMRR
Open-Loop Gain
Output Voltage Swing
Linear Output Current
Output Balance Error
Gain Error
= 25°C, +V
ADA4950-1
ADA4950-2
S
= 5 V, −V
S
OUT, dm
= −5 V, V
Performance
OCM
= 0 V, G = 1, R
Test Conditions/Comments
V
V
V
V
V
V
See Figure 51 for distortion test circuit
V
1 MHz
10 MHz
20 MHz
50 MHz
V
1 MHz
10 MHz
20 MHz
50 MHz
f
f = 1 MHz
Gain = 1
Gain = 2
Gain = 3
f = 10 MHz; Channel 2 active, Channel 1
output
V
T
Single-ended at package pin
Directly at internal amplifier inputs, not
external input terminals
DC, ∆V
Maximum ∆V
R
200 kHz, R
∆V
see Figure 50 for output balance test circuit
Gain = 1
Gain = 2
Gain = 3
1
MIN
OUT, dm
OUT, dm
OUT, dm
OUT, dm
OUT, dm
IN
OUT, dm
OUT, dm
+DIN
L
= 30 MHz, f
= 1 kΩ
OUT, cm
= 0 V to 5 V ramp, G = 2
to T
= V
OUT, dm
= 0.1 V p-p
= 2.0 V p-p
= 2.0 V p-p, R
= 2 V p-p, 25% to 75%
= 2 V step
= 2 V p-p
= 2 V p-p
/∆V
MAX
−DIN
L, dm
variation
OUT, dm
= V
/∆V
T
2
OUT
= 10 Ω, SFDR = 69 dB
= 53.6 Ω (when used), R
= 30.1 MHz, V
OCM
IN, cm
, single-ended output,
, ∆V
= 0 V
Rev. 0 | Page 3 of 28
, ∆V
L
OUT, dm
= 200 Ω
IN, cm
= 2 V p-p, 1 MHz;
= ±1 V
OUT, dm
= 2 V p-p
L, dm
= 1 kΩ, unless otherwise noted. All specifications
Min
−2.5
64
–V
+V
S
S
+ 1.4 to
– 1.4
ADA4950-1/ADA4950-2
Typ
750
350
210
230
2900
9
20
−108
−107
−98
−80
−126
−105
−99
−84
−94
9.2
12.5
16.6
−87
±0.2
–3.7
0.5
−V
+V
−64
66
−V
+V
114
−62
0.5
1.0
0.8
S
S
S
S
+ 0.2 to
− 1.8
+ 1.2 to
− 1.2
Max
+2.5
−49
1.2
1.9
1.7
Unit
MHz
MHz
MHz
MHz
V/μs
ns
ns
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
nV/√Hz
nV/√Hz
nV/√Hz
dB
mV
μV/°C
pF
V
dB
dB
V
mA peak
dB
%
%
%