MAX4331ESA-T Maxim Integrated, MAX4331ESA-T Datasheet - Page 11

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MAX4331ESA-T

Manufacturer Part Number
MAX4331ESA-T
Description
Operational Amplifiers - Op Amps Low-Power Rail-Rail I/O
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX4331ESA-T

Number Of Channels
1
Common Mode Rejection Ratio (min)
74 dB
Input Offset Voltage
600 uV
Input Bias Current (max)
65 nA
Operating Supply Voltage
2.3 V to 6.5 V, +/- 1.15 V to +/- 3.25 V
Mounting Style
SMD/SMT
Package / Case
SOIC-8 Narrow
Slew Rate
1.5 V/us
Shutdown
Yes
Output Current
20 mA
Maximum Operating Temperature
+ 85 C
Amplifier Type
Low Power Amplifier
Gain Bandwidth Product
3 MHz
Maximum Dual Supply Voltage
+/- 3.25 V
Minimum Dual Supply Voltage
+/- 1.15 V
Minimum Operating Temperature
- 40 C
Supply Current
0.245 mA
Voltage Gain Db
120 dB

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX4331ESA-T
Manufacturer:
MIT
Quantity:
200
The MAX4330–MAX4334 output stage can drive up to a
2kΩ load and still typically swing within 125mV of the
rails. Figure 3 shows the output voltage swing of a
MAX4331 configured as a unity-gain buffer. The operat-
ing voltage is a single +3V supply, and the input volt-
age is 3Vp-p. The output swings to within 70mV of V
and 100mV of V
applied (2kΩ to mid-supply).
Figure 2. Input Protection Circuit
Figure 3. Rail-to-Rail Input/Output Voltage Range
OUT
Single/Dual/Quad, Low-Power, Single-Supply,
IN
V
CC
= 3V, R
CC
______________________________________________________________________________________
L
= 2k TO V
Rail-to-Rail I/O Op Amps with Shutdown
, even with the maximum load
Rail-to-Rail Output Stage
20 s/div
CC
/ 2
1k
1k
1V/div
1V/div
EE
Driving a capacitive load can cause instability in many
op amps, especially those with low quiescent current.
The MAX4330–MAX4334 are stable for capacitive loads
up to 150pF. The Capacitive Load Stability graph in the
Typical Operating Characteristics gives the stable
operating region for capacitive vs. resistive loads.
Figures 4 and 5 show the response of the MAX4331
with an excessive capacitive load, compared with the
response when a series resistor is added between the
output and the capacitive load. The resistor improves
the circuit’s response by isolating the load capacitance
from the op amp’s output (Figure 6).
Figure 4. Small-Signal Transient Response with Excessive
Capacitive Load
OUT
IN
V
R
C
CC
ISO
L
= 510pF
= 3V, R
= 0 , A
L
V
= 100k
= +1
2 s/div
50mV/div
50mV/div
11

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