MAX9945 Maxim, MAX9945 Datasheet - Page 6

• Manufacturer Part Number: MAX9945
• Description: The MAX9945 operational amplifier features an excellent combination of low operating power and low input voltage noise
• Manufacturer: Maxim

38V, Low-Noise, MOS-Input,
Low-Power Op Amp
(V
unless otherwise noted.)
6
CC
_______________________________________________________________________________________
= +15V, V
EE
500mV/div
= -15V, V
10,000
1000
V
100
+1V
OUT
-1V
10
30
25
20
15
10
5
0
10
vs. CAPACITIVE AND RESISTIVE LOADS
1
A
V
R
C
V
IN
L
L
LARGE SIGNAL-STEP RESPONSE
= 10kΩ
IN+
= 1V/V
= 100pF
= 2V
PARALLEL LOAD RESISTANCE (kΩ)
LARGE-SIGNAL RESPONSE
P-P
= V
10
OP-AMP STABILITY
100
vs. FREQUENCY
IN-
FREQUENCY (kHz)
UNSTABLE
= V
1μs/div
STABLE
100
GND
1000
R
= 0V, R
LOAD
1000
Typical Operating Characteristics (continued)
= 100kΩ
MAX9945 toc19
OUT
10,000
10,000
= 100kΩ to GND, T
10mV/div
1000.00
2.5V/div
100.00
+20mV
-20mV
10.00
V
V
1.00
0.10
0.01
+5V
A
OUT
-5V
OUT
= -40°C to +125°C, typical values are at T
10
A
V
R
V
IN
L
LARGE SIGNAL-STEP RESPONSE
SMALL SIGNAL-STEP RESPONSE
= 1V/V
= 100kΩ
= 40mV
100
OUTPUT IMPEDANCE
P-P
ACL = 10
ACL = 1
vs. FREQUENCY
1k
FREQUENCY (Hz)
4μs/div
2μs/div
10k
100k
A
V
R
C
V
IN
L
L
= 10kΩ
= 1V/V
= 100pF
1M
MAX9945 toc18
= 10V
MAX9945 toc20
P-P
10M
A
= +25°C,