Datasheet

Data Sheet ADA4084-1/ADA4084-2/ADA4084-4
Rev. I | Page 5 of 36
V
SY
= ±5.0 V, V
CM
= 0 V, T
A
= 25°C, unless otherwise noted.
Table 3.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
SOIC package 30 100 µV
−40°C ≤ T
A
≤ +125°C 200 µV
SOT-23, MSOP, TSSOP packages 60 130 µV
−40°C ≤ T
A
≤ +125°C 250 µV
ADA4084-2 LFCSP package
90
200
µV
−40°C ≤ T
A
≤ +125°C 300 µV
Offset Voltage Drift ΔV
OS
/ΔT −40°C ≤ T
A
≤ +125°C 0.5 1.75 µV/°C
Offset Voltage Matching T
A
= 25°C 150 µV
ADA4084-4 LFCSP package 200 µV
Input Bias Current I
B
140 250 nA
−40°C ≤ T
A
≤ +125°C 400 nA
Input Offset Current I
OS
5 25 nA
−40°C ≤ T
A
≤ +125°C 50 nA
Input Voltage Range −5 +5 V
Common-Mode Rejection Ratio CMRR V
CM
= ±4 V, −40°C ≤ T
A
≤ +125°C 106 124 dB
V
CM
= ±5 V 76 dB
V
CM
= ±5 V, −40°C ≤ T
A
≤ +125°C
70
dB
Large Signal Voltage Gain
A
VO
R
L
= 2 kΩ, −4 V ≤ V
OUT
≤ 4 V
108
112
dB
−40°C ≤ T
A
≤ +125°C 103 dB
Input Impedance
Differential 100||1.1 kΩ||pF
Common Mode 200||2.5 MΩ||pF
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
R
L
= 10 kΩ to V
CM
4.9 4.95 V
−40°C ≤ T
A
≤ +125°C 4.8 V
R
L
= 2 kΩ to V
CM
4.8 4.85 V
−40°C ≤ T
A
≤ +125°C
4.7
V
Output Voltage Low V
OL
R
L
= 10 kΩ to V
CM
−4.95 −4.9 V
−40°C ≤ T
A
≤ +125°C −4.8 V
R
L
= 2 kΩ to V
CM
−4.95 −4.8 V
−40°C ≤ T
A
≤ +125°C −4.7 V
Short-Circuit Current I
SC
−24/+17 mA
Closed-Loop Output Impedance Z
OUT
f = 1 kHz, A
V
= 1 0.1 Ω
POWER SUPPLY
Power Supply Rejection Ratio PSRR V
SY
= ±2 V to ±18 V 110 120 dB
−40°C ≤ T
A
≤ +125°C 105 dB
Supply Current per Amplifier I
SY
I
OUT
= 0 mA 0.595 0.700 mA
−40°C ≤ T
A
≤ +125°C 1.00 mA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
= 2 kΩ to V
CM
2.4 3.7 V/µs
Gain Bandwidth Product GBP V
IN
= 5 mV p-p, R
L
= 10 kΩ, A
V
= 100 15.9 MHz
Unity-Gain Crossover UGC V
IN
= 5 mV p-p, R
L
= 10 kΩ, A
V
= 1 9.6 MHz
Phase Margin Φ
M
85 Degrees
−3 dB Closed-Loop Bandwidth −3 dB A
V
= 1, V
IN
= 5 mV p-p 13.9 MHz
Settling Time t
S
A
V
= 10, V
IN
= 8 V p-p, 0.1% 4 µs
Total Harmonic Distortion Plus Noise THD + N V
IN
= 2 V rms, R
L
= 2 kΩ, f = 1 kHz 0.003 %
NOISE PERFORMANCE
Voltage Noise e
n
p-p 0.1 Hz to 10 Hz 0.14 µV p-p
Voltage Noise Density
e
n
f = 1 kHz
3.9
nV/√Hz
Current Noise Density i
n
f = 1 kHz 0.55 pA/√Hz
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