Philips Semiconductors

Product data

NE521

High-speed dual-differential comparator/sense amp

2001 Aug 03

4

DC ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

TEST CONDITIONS

LIMITS

UNIT

SYMBOL

PARAMETER

TEST CONDITIONS

Min

Typ

Max

UNIT

Input offset voltage

V+ = +4.75 V; V– = –4.75 V

At 25

°C

6

7.5

mV

Over temperature range

10

mV

Input bias current

V+ = +5.25 V, V– = –5.25 V

At 25

°C

7.5

20

µA

Over temperature range

40

µA

Input offset current

V+ = +5.25 V, V– = –5.25 V

At 25

°C

1.0

5

µA

Over temperature range

12

µA

Common-mode voltage range

V+ = +4.75 V, V– = –4.75 V

–3

+3

V

Input current

V+ = +5.25 V, V– = –5.25 V

High

1G or 2G strobe

50

µA

Common strobe S

100

µA

Input Current

Low

1G or 2G strobe

–2.0

mA

Common strobe S

–4.0

mA

Output voltage

High

2.7

3.4

V

Low

0.5

V

Supply voltage

V+

Positive

4.75

5.0

5.25

V

V–

Negative

–4.75

–5.0

–5.25

V

Supply current

Positive

27

35

mA

Negative

–15

–28

Short-circuit output current

-40

–100

mA

AC ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

FROM INPUT

TO OUTPUT

LIMITS

UNIT

SYMBOL

PARAMETER

FROM INPUT

TO OUTPUT

Min

Typ

Max

UNIT

Large-signal switching speed

Propagation delay

Amp

Output

8

12

Amp

Output

6

9

ns

Strobe

Output

4.5

10

Strobe

Output

3.0

6

Max. operating frequency

40

55

MHz

NOTES:

1. Response time measured from 0 V point of

2. Response time measured from 1.5 V point of input to 1.5 V point of the output.