MAX197ACAIT 데이터 시트보기 (PDF) - Maxim Integrated

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MAX197ACAIT

Multi-Range (±10V, ±5V, +10V, +5V), Single +5V, 12-Bit DAS with 8+4 Bus Interface

Maxim Integrated 

Multi-Range (±10V, ±5V, +10V, +5V),

Single +5V, 12-Bit DAS with 8+4 Bus Interface

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 5V ±5%; unipolar/bipolar range; external reference mode, VREF = 4.096V; 4.7µF at REF pin; external clock, fCLK = 2.0MHz

with 50% duty cycle; TA = TMIN to TMAX, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

ANALOG INPUT

Track/Hold Acquisition Time

fCLK = 2.0MHz

±10V range

3

µs

5

Small-Signal Bandwidth

-3dB rolloff

±5V range

0V to 10V range

2.5

MHz

2.5

0V to 5V range

1.25

Input Voltage Range

(See Table 1)

Unipolar

Bipolar

0

10

0

5

V

-10

10

-5

5

Input Current

Unipolar

Bipolar

0V to 10V range

0V to 5V range

-10V to 10V range

-5V to 5V range

-1200

-600

720

360

µA

720

360

Input Dynamic Resistance

Unipolar

Bipolar

21

kΩ

16

Input Capacitance

(Note 5)

40

pF

INTERNAL REFERENCE

REF Output Voltage

REF Output Tempco

Output Short-Circuit Current

VREF TA = +25°C

TC VREF

4.076

4.096

40

4.116

30

V

ppm/°C

mA

Load Regulation

0mA to 0.5mA output current (Note 6)

7.5

mV

Capacitive Bypass at REF

4.7

µF

REFADJ Output Voltage

2.465 2.500 2.535

V

REFADJ Adjustment Range

With recommended circuit (Figure 1)

±1.5

%

Buffer Voltage Gain

1.6384

V/V

REFERENCE INPUT (Buffer disabled, reference input applied to REF pin)

Input Voltage Range

Input Current

Input Resistance

2.4

VREF = 4.18V

Normal or STANDBY

power-down mode

FULL power-down

mode

Normal or STANDBY power-down mode

10

FULL power-down mode

5

4.18

V

400

µA

1

kΩ

MΩ

REFADJ Threshold for

Buffer Disable

VDD - 50mV

V

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