Datasheet

Data Sheet ADA4898-1/ADA4898-2
SPECIFICATIONS
±15 V SUPPLY
T
A
= 25°C, G = +1, R
F
= 0 Ω, R
G
open, R
L
= 1 kΩ to GND (for G > 1, R
F
= 100 Ω), unless otherwise noted.
Table 1.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth V
OUT
= 100 mV p-p 65 MHz
V
OUT
= 2 V p-p 14 MHz
Bandwidth for 0.1 dB Flatness G = +2, V
OUT
= 2 V p-p 3.3 MHz
Slew Rate V
OUT
= 5 V step 55 V/µs
Settling Time to 0.1% V
OUT
= 5 V step 85 ns
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion SFDR f = 100 kHz, V
OUT
= 2 V p-p −116 dBc
f = 500 kHz, V
OUT
= 2 V p-p −93 dBc
f = 1 MHz, V
OUT
= 2 V p-p −79 dBc
Input Voltage Noise f = 1 kHz 0.9 nV/√Hz
Input Current Noise
f = 1 kHz
2.4
pA/√Hz
DC PERFORMANCE
Input Offset Voltage
R
F
= 1 kΩ, see Figure 43
20
125
µV
Input Offset Voltage Drift R
F
= 1 kΩ, see Figure 43 1 µV/°C
Input Bias Current R
F
= 1 kΩ, see Figure 43 −0.1 −0.4 µA
Input Bias Offset Current R
F
= 1 kΩ, see Figure 43 0.03 0.3 µA
Input Bias Current Drift R
F
= 1 kΩ, see Figure 43 2 nA/°C
Open-Loop Gain V
OUT
= ±5 V 99 103 dB
INPUT CHARACTERISTICS
Input Resistance Differential mode 5 kΩ
Common mode 30 MΩ
Input Capacitance
Differential mode
3.2
pF
Common mode 2.5 pF
Input Common-Mode Voltage Range See Figure 43 ±11 V
Common-Mode Rejection Ratio V
CM
= ±2 V −103 −126 dB
PD
(POWER-DOWN) PIN (ADA4898-1)
PD
Input Voltages Chip powered down ≤−14 V
Chip enabled ≥−13 V
PD
Turn On Time V
OUT
= 100 mV p-p 100 ns
PD
Turn Off Time V
OUT
= 100 mV p-p 20 μs
Input Leakage Current
PD
= +V
S
0.1
µA
PD
= −V
S
−0.2 µA
OUTPUT CHARACTERISTICS
Output Voltage Swing R
L
// (R
F
+ R
G
) = 500 Ω, see Figure 43 −11.0 to +11.8 −11.7 to +12.1 V
R
L
// (R
F
+ R
G
) = 1 kΩ, see Figure 43 −12.5 to +12.5 −12.8 to +12.7 V
Linear Output Current f = 100 kHz, SFDR = −70 dBc, R
L
= 150 Ω 40 mA
Short-Circuit Current Sinking/sourcing 150 mA
Off Isolation f = 1 MHz,
PD
= −V
S
80 dB
POWER SUPPLY
Operating Range ±4.5 ±16.5 V
Quiescent Current per Amplifier
PD
= +V
S
7.9 8.7 mA
PD
= −V
S
0.1 0.3 mA
Positive Power Supply Rejection Ratio +V
S
= 15 V to 17 V, −V
S
= −15 V −98 −107 dB
Negative Power Supply Rejection Ratio +V
S
= 15 V, −V
S
= −15 V to −17 V −100 −114 dB
Rev. E | Page 3 of 20
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