MAX4238 Maxim, MAX4238 Datasheet - Page 5

• Manufacturer Part Number: MAX4238
• Description: The MAX4238/MAX4239 are low-noise, low-drift, ultra-high precision amplifiers that offer near-zero DC offset and drift through the use of autocorrelating zeroing techniques
• Manufacturer: Maxim

(V
CC
-100
-120
-140
-160
-180
0.30
0.25
0.20
0.15
0.10
0.05
-20
-40
-60
-80
50
40
30
20
10
80
60
40
20
0
0
0
= 5V, V CM = 0V, R
100
0
-1.5
V
GAIN = 60dB
R
C
V
CC
L
L
GAIN AND PHASE vs. FREQUENCY
OH
-1.2
= 10kΩ
= 100pF
vs. OUTPUT SOURCE CURRENT
INPUT OFFSET DISTRIBUTION
= 5V
= V
1k
-0.9
OUTPUT HIGH VOLTAGE
CC
5
SOURCE CURRENT (mA)
OFFSET VOLTAGE (µV)
- V
-0.6
OUT
FREQUENCY (Hz)
V
10k
-0.3
CC
MAX4238
_______________________________________________________________________________________
= 2.7V
10
0
L
100k
= 10kΩ connected to V
0.3
V
CC
0.6
= 5V
15
0.9
1M
1.2
1.5
10M
Ultra-Low Offset/Drift, Low-Noise,
20
-100
-120
-140
-160
-180
0.35
0.30
0.25
0.20
0.15
0.10
0.05
-0.2
-0.4
-20
-40
-60
-80
0.4
0.2
CC
80
60
40
20
0
0
0
100
2.7
/2, SHDN = V
OFFSET VOLTAGE vs. SUPPLY VOLTAGE
0
V
GAIN = 40dB
R
C
CC
L
L
GAIN AND PHASE vs. FREQUENCY
T
= 10kΩ
= 0pF
T
A
Precision SOT23 Amplifiers
A
= 5V
= +125°C
vs. OUTPUT SINK CURRENT
= +25°C
1k
OUTPUT LOW VOLTAGE
3.4
5
SUPPLY VOLTAGE (V)
SINK CURRENT (mA)
FREQUENCY (Hz)
10k
MAX4238
CC
, T
4.1
V
10
CC
Typical Operating Characteristics
A
100k
= 2.7V
= +25°C, unless otherwise noted.)
T
A
= -40°C
V
CC
4.8
15
1M
= 5V
10M
5.5
20
-100
-120
-140
-160
-180
-100
-120
-140
-160
-180
-0.2
-0.4
-20
-40
-60
-80
-20
-40
-60
-80
0.4
0.2
80
60
40
20
80
60
40
20
0
0
0
100
100
0
V
GAIN = 60dB
R
C
V
GAIN = 40dB
R
C
CC
L
L
CC
L
L
GAIN AND PHASE vs. FREQUENCY
GAIN AND PHASE vs. FREQUENCY
T
= 10kΩ
= 0pF
= 10kΩ
= 68pF
A
vs. COMMON-MODE VOLTAGE
= 5V
= 5V
= +125°C
1k
1k
COMMON-MODE VOLTAGE (V)
0.9
OFFSET VOLTAGE
FREQUENCY (Hz)
FREQUENCY (Hz)
10k
10k
MAX4238
MAX4238
T
A
= +25°C
1.8
100k
100k
T
A
2.7
= -40°C
1M
1M
10M
10M
3.6
5