AD790SQ datasheet(3/12 Pages) AD

부품명	AD790SQ

상세설명	Fast, Precision Comparator

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제조업체	AD [Analog Devices]

홈페이지	http://www.analog.com

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SINGLE SUPPLY

AD790J/A

AD790K/B

AD790S

Parameter

Conditions

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

Unit

RESPONSE CHARACTERISTIC

100 mV Step

Propagation Delay, tPD

5 mV Overdrive

45

50

45

50

45

50

ns

TMIN to TMAX

50/60

65

ns

OUTPUT CHARACTERISTICS

Output HIGH Voltage, VOH

1.6 mA Source

4.65

6.4 mA Source

4.3

4.45

4.3

4.45

4.3

4.45

V

TMIN to TMAX

4.3

V

Output LOW Voltage, VOL

1.6 mA Sink

0.35

V

6.4 mA Sink

0.44

0.5

0.44

0.5

0.44

0.5

V

TMIN to TMAX

0.5

V

INPUT CHARACTERISTICS

Offset Voltage

2

0.45

1.5

0.35

0.6

0.45

1.5

mV

TMIN to TMAX

2.0

0.85

2.0

mV

Hysteresis

3

TMIN to TMAX

0.3

0.5

0.75

0.3

0.5

0.65

0.3

0.7

1.0

mV

Bias Current

Either Input

2.7

5

2.0

3.5

2.7

5

µA

TMIN to TMAX

7

58

µA

Offset Current

0.04

0.25

0.02

0.15

0.04

0.25

µA

TMIN to TMAX

0.3

0.2

0.4

µA

Power Supply

Rejection Ratio DC

4.5 V

≤V

S

≤5.5 V

80

90

86

100

80

90

dB

TMIN to TMAX

76/76 88

82

93

76

85

dB

Input Voltage Range

Differential Voltage

VS

V

Common Mode

0

+VS–2 V

0

+VS–2 V

0

+VS–2 V V

Input Impedance

20 220 220 2M

Ω pF

LATCH CHARACTERISTICS

Latch Hold Time, tH

25

35

25

35

25

35

ns

Latch Setup Time, tS

510

5

10

510

ns

LOW Input Level, VIL

TMIN to TMAX

0.8

V

HIGH Input Level, VIH

TMIN to TMAX

1.6

V

Latch Input Current

2.3

5

2.3

3.5

2.3

5

µA

TMIN to TMAX

7

58

µA

SUPPLY CHARACTERISTICS

Supply Voltage

4

TMIN to TMAX

4.5

7

4.5

7

4.7

7

V

Quiescent Current

10

12

10

12

10

12

mA

Power Dissipation

60

mW

TEMPERATURE RANGE

Rated Performance

TMIN to TMAX

0 to 70/–40 to +85

–55 to +125

°C

NOTES

1Pin 1 tied to Pin 8, and Pin 4 tied to Pin 6.

2Defined as the average of the input voltages at the low to high and high to low transition points. Refer to Figure 6.

3Defined as half the magnitude between the input voltages at the low to high and high to low transition points. Refer to Figure 6.

4–V

S must not be connected above ground.

All min and max specifications are guaranteed. Specifications shown in boldface are tested on all production units at final test.

Specifications subject to change without notice.

AD790

REV. D

–3–

(Operation @ 25 C and +VS = VLOGIC = 5 V, –VS = 0 V unless otherwise noted.)

1

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