Datasheet

ADA4898-1/ADA4898-2 Data Sheet
Rev. D | Page 4 of 20
±5 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 2.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth V
OUT
= 100 mV p-p 57 MHz
V
OUT
= 2 V p-p 12 MHz
Bandwidth for 0.1 dB Flatness G = +2, V
OUT
= 2 V p-p 3 MHz
Slew Rate V
OUT
= 2 V step 50 V/µs
Settling Time to 0.1% V
OUT
= 2 V step 90 ns
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion SFDR f = 100 kHz, V
OUT
= 2 V p-p −110 dBc
f = 500 kHz, V
OUT
= 2 V p-p
−95
dBc
f = 1 MHz, V
OUT
= 2 V p-p −78 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 30 160 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 −0.5 µA
Input Bias Offset Current R
F
= 1 kΩ, see Figure 43 0.05 0.3 µA
Input Bias Current Drift R
F
= 1 kΩ, see Figure 43 2 nA/°C
Open-Loop Gain V
OUT
= ±1 V 87 94 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 −3 to +2.5 V
Common-Mode Rejection Ratio ΔV
CM
= 1 V p-p −102 −120 dB
PD
(POWER-DOWN) PIN (ADA4898-1)
PD
Input Voltages
Chip powered down
≤−4
V
Chip enabled ≥−3 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
−2 µA
OUTPUT CHARACTERISTICS
Output Voltage Swing R
L
// (R
F
+ R
G
) = 500 Ω, see Figure 43 ±3.1 ±3.2 V
R
L
// (R
F
+ R
G
) = 1 kΩ, see Figure 43 ±3.3 ±3.4 V
Linear Output Current f = 100 kHz, SFDR = −70 dBc, R
L
= 150 Ω 8 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
7.5 8.4 mA
PD
= −V
S
0.1 0.2 mA
Positive Power Supply Rejection Ratio +V
S
= 5 V to 7 V, −V
S
= −5 V −95 −100 dB
Negative Power Supply Rejection Ratio
+V
S
= 5 V, −V
S
= −5 V to −7 V
−97
−104
dB