MAX9945 Ver la hoja de datos (PDF) - Maxim Integrated

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MAX9945

38V, Low-Noise, MOS-Input, Low-Power Op Amp

Maxim Integrated 

38V, Low-Noise, MOS-Input,

Low-Power Op Amp

Typical Operating Characteristics (continued)

(VCC = +15V, VEE = -15V, VIN+ = VIN- = VGND = 0V, ROUT = 100kΩ to GND, TA = -40°C to +125°C, typical values are at TA = +25°C,

unless otherwise noted.)

OP-AMP STABILITY

vs. CAPACITIVE AND RESISTIVE LOADS

10,000

1000.00

OUTPUT IMPEDANCE

vs. FREQUENCY

UNSTABLE

1000

STABLE

100

100.00

10.00

1.00

0.10

ACL = 10

ACL = 1

10

10

100

1000

10,000

PARALLEL LOAD RESISTANCE (kΩ)

0.01

10 100 1k 10k 100k 1M 10M

FREQUENCY (Hz)

LARGE-SIGNAL RESPONSE

vs. FREQUENCY

30

RLOAD = 100kΩ

25

20

15

10

5

0

1

10

100

1000 10,000

FREQUENCY (kHz)

LARGE SIGNAL-STEP RESPONSE

MAX9945 toc19

AV = 1V/V

VIN = 2VP-P

RL = 10kΩ

+1V CL = 100pF

VOUT

500mV/div

-1V

LARGE SIGNAL-STEP RESPONSE

MAX9945 toc18

AV = 1V/V

VIN = 10VP-P

RL = 10kΩ

+5V

CL = 100pF

VOUT

2.5V/div

-5V

4μs/div

+20mV

SMALL SIGNAL-STEP RESPONSE

MAX9945 toc20

AV = 1V/V

VIN = 40mVP-P

RL = 100kΩ

VOUT

10mV/div

-20mV

1μs/div

2μs/div

6 _______________________________________________________________________________________

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