Datasheet

Data Sheet AD824
At V
S
= 3.0 V, V
CM
= 0 V, V
OUT
= 0.2 V, T
A
= 25°C; unless otherwise noted.
Table 3.
Parameter Symbol Test Conditions/Comments 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
2
12
pA
T
MIN
to T
MAX
250 4000 pA
Input Offset Current I
OS
2 10 pA
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
||3.3 Ω||pF
Large Signal Voltage Gain A
VO
V
O
= 0.2 V to 2.0 V;
R
L
= 2 kΩ 10 20 V/mV
R
L
= 10 kΩ 30 65 V/mV
R
L
= 100 kΩ 180 500 V/mV
T
MIN
to T
MAX
, R
L
= 100 kΩ 90 250 V/mV
Offset Voltage Drift ΔV
OS
/ΔT 2 µV/°C
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
I
SOURCE
= 20 µA 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 µA 15 25 mV
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
±8
mA
I
SC
Sink/source, T
MIN
to T
MAX
±6 mA
Open-Loop Impedance Z
OUT
f = 1 MHz, A
V
= 1 100 Ω
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 µA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
=10 kΩ, A
V
= 1 2 V/µs
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 µs
Gain Bandwidth Product GBP 2 MHz
Phase Margin φo 50 Degrees
Channel Separation CS f = 1 kHz, R
L
= 2 kΩ –123 dB
NOISE PERFORMANCE
Voltage Noise e
n
p-p 0.1 Hz to 10 Hz 2 µV 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
= ∞, A
V
= +1 0.01 %
Rev. E | Page 5 of 16