Datasheet
REV. C
–4–
AD824–SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage AD824A -3 V V
OS
0.2 1.0 mV
T
MIN
to T
MAX
1.5 mV
Input Bias Current I
B
212pA
T
MIN
to T
MAX
250 4000 pA
Input Offset Current I
OS
210pA
T
MIN
to T
MAX
250 pA
Input Voltage Range 0 1 V
Common-Mode Rejection Ratio CMRR V
CM
= 0 V to 1 V 58 74 dB
T
MIN
to T
MAX
56 dB
Input Impedance 10
13
储3.3 W储pF
Large Signal Voltage Gain A
VO
V
O
= 0.2 V to 2.0 V
R
L
= 2 kW 10 20 V/mV
R
L
= 10 kW 30 65 V/mV
R
L
= 100 kW 180 500 V/mV
T
MIN
to T
MAX,
R
L
= 100 kW 90 250 V/mV
Offset Voltage Drift DV
OS
/DT2mV/∞C
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
I
SOURCE
= 20 mA 2.975 2.988 V
T
MIN
to T
MAX
2.97 2.985 V
I
SOURCE
= 2.5 mA 2.8 2.85 V
T
MIN
to T
MAX
2.75 2.82 V
Output Voltage Low V
OL
I
SINK
= 20 mA1525mV
T
MIN
to T
MAX
20 30 mV
I
SINK
= 2.5 mA 120 150 mV
T
MIN
to T
MAX
140 200 mV
Short Circuit Limit I
SC
Sink/Source ±8mA
I
SC
Sink/Source, T
MIN
to T
MAX
±6mA
Open-Loop Impedance Z
OUT
f = 1 MHz, A
V
= 1 100 W
POWER SUPPLY
Power Supply Rejection Ratio PSRR V
S
= 2.7 V to 12 V, 70 dB
T
MIN
to T
MAX
66 dB
Supply Current/Amplifier I
SY
V
O
= 0.2 V, T
MIN
to T
MAX
500 600 mA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
=10 kW, A
V
= 1 2 V/ms
Full-Power Bandwidth BW
P
1% Distortion, V
O
= 2 V p-p 300 kHz
Settling Time t
S
V
OUT
= 0.2 V to 2.5 V, to 0.01% 2 ms
Gain Bandwidth Product GBP 2 MHz
Phase Margin fo50Degrees
Channel Separation CS f = 1 kHz, R
L
= 2 kW –123 dB
NOISE PERFORMANCE
Voltage Noise e
n
p-p 0.1 Hz to 10 Hz 2 mV p-p
Voltage Noise Density e
n
f = 1 kHz 16 nV/÷Hz
Current Noise Density i
n
0.8 fA/÷Hz
Total Harmonic Distortion THD f = 10 kHz, R
L
= 0, A
V
= +1 0.01 %
(@ V
S
= 3.0 V, V
CM
= 0 V, V
OUT
= 0.2 V, T
A
= 25C unless otherwise noted)