MAX4305ESA 查看數據表（PDF） - Maxim Integrated

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MAX4305ESA

740MHz, Low-Noise, Low-Distortion Op Amps in SOT23-5

Maxim Integrated 

740MHz, Low-Noise, Low-Distortion

Op Amps in SOT23-5

RG

RF

MAX4104

MAX4105

MAX4304

IN-

MAX4305

OUT

RISO

IN+

CL

RL

Figure 4. Using an Isolation Resistor (RISO) for High Capacitive

Loads

30

25

MAX4105/MAX4305

20

15

10

5

MAX4104/MAX4304

0

0

50 100 150 200 250

CAPACITIVE LOAD (pF)

Figure 5. Optimal Isolation Resistor (RISO) vs. Capacitive

Load

Pin Configurations (continued)

TOP VIEW

N.C. 1

IN- 2

IN+ 3

VEE 4

MAX4104

MAX4105

MAX4304

MAX4305

SO

8 N.C.

7 VCC

6 OUT

5 N.C.

4

3

2

CL = 47pF

1

CL = 68pF

0

-1

-2

CL = 83pF

-3

-4

-5 MAX4104/MAX4304

RISO = 15Ω

-6

100k 1M 10M 100M 1G

FREQUENCY (Hz)

Figure 6. Frequency Responses vs. Capacitive Load with 15Ω

Isolation Resistor

distance from the IC to these resistors, thus reducing

the capacitance associated with longer lead lengths.

SMA connectors were used for best high-frequency

performance. Because distances are extremely short,

performance is unaffected by the fact that inputs and

outputs do not match a 50Ω line. However, in applica-

tions that require lead lengths greater than 1/4 of the

wavelength of the highest frequency of interest,

constant-impedance traces should be used.

Fully assembled evaluation boards are available for the

MAX4104 in an 8-pin SO package.

Ordering Information (continued)

PART

TEMP. RANGE

PIN-

PACKAGE

MAX4105ESA -40°C to +85°C 8 SO

MAX4105EUK-T -40°C to +85°C 5 SOT23-5

MAX4304ESA -40°C to +85°C 8 SO

MAX4304EUK-T -40°C to +85°C 5 SOT23-5

MAX4305ESA* -40°C to +85°C 8 SO

MAX4305EUK-T -40°C to +85°C 5 SOT23-5

*Future product—contact factory for availability.

SOT

TOP MARK

—

ACCP

—

ACCQ

—

ACCR

Chip Information

TRANSISTOR COUNT: 44

SUBSTRATE CONNECTED TO VEE

12 ______________________________________________________________________________________

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