ADG3245_15 datasheet(2/12 Pages) AD

No. de pieza	ADG3245

Descripción Electrónicos	2.5V/3.3V 8 Bit 2 Port Level Translating Bus Switch

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Fabricante Electrónico	AD [Analog Devices]

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REV.

–2–

ADG3245–SPECIFICATIONS1

(VCC = 2.3 V to 3.6 V, GND = 0 V, all specifications TMIN to TMAX, unless

otherwise noted.)

B Version

Parameter

Symbol

Conditions

Min

Typ

2

Max

Unit

DC ELECTRICAL CHARACTERISTICS

Input High Voltage

VINH

VCC = 2.7 V to 3.6 V

2.0V

VINH

VCC = 2.3 V to 2.7 V

1.7V

Input Low Voltage

VINL

VCC = 2.7 V to 3.6 V

0.8V

VINL

VCC = 2.3 V to 2.7 V

0.7V

Input Leakage Current

II

±0.01

±1

mA

OFF State Leakage Current

IOZ

0

£ A, B £ VCC

±0.01

±1

mA

ON State Leakage Current

0

£ A, B £ VCC

±0.01

±1

mA

Maximum Pass Voltage

VP

VA/VB = VCC =

SEL = 3.3 V, I

O = –5

mA2.02.52.9V

VA/VB = VCC =

SEL = 2.5 V, I

O= –5

mA1.51.82.1V

VA/VB = VCC = 3.3 V,

SEL = 0 V, I

O= –5

mA1.51.82.1V

CAPACITANCE

3

A Port Off Capacitance

CA OFF

f = 1 MHz

5

pF

B Port Off Capacitance

CB OFF

f = 1 MHz

5

pF

A, B Port On Capacitance

CA, CB ON

f = 1 MHz

10

pF

Control Input Capacitance

CIN

f = 1 MHz

6

pF

SWITCHING CHARACTERISTICS

3

Propagation Delay A to B or B to A, tPD

4

tPHL, tPLH

CL = 50 pF, VCC =

SEL = 3 V

0.225

ns

Propagation Delay Matching

5

22.5ps

Bus Enable Time

BE to A or B6

tPZH, tPZL

VCC = 3.0 V to 3.6 V;

SEL = V

CC

13.24.8ns

Bus Disable Time

BE to A or B6

tPHZ, tPLZ

VCC = 3.0 V to 3.6 V;

SEL = V

CC

13.24.8ns

Bus Enable Time

BE to A or B6

tPZH, tPZL

VCC = 3.0 V to 3.6 V;

SEL = 0 V

0.52.23.3ns

Bus Disable Time

BE to A or B6

tPHZ, tPLZ

VCC = 3.0 V to 3.6 V;

SEL = 0 V

0.51.72.9ns

Bus Enable Time

BE to A or B6

tPZH, tPZL

VCC = 2.3 V to 2.7 V;

SEL = V

CC

0.52.23

ns

Bus Disable Time

BE to A or B6

tPHZ, tPLZ

VCC = 2.3 V to 2.7 V;

SEL = V

CC

0.51.75

2.6ns

Maximum Data Rate

VCC =

SEL = 3.3 V; V

A/VB = 2 V

1.244

Gbps

Channel Jitter

VCC =

SEL = 3.3 V; V

A/VB = 2 V

50

ps p-p

Operating Frequency—Bus Enable

fBE

10

MHz

DIGITAL SWITCH

On Resistance

RON

VCC = 3 V,

SEL = V

CC, VA = 0 V, IBA = 8 mA

4.58

W

VCC = 3 V,

SEL = V

CC, VA = 1.7 V, IBA = 8 mA

15

28

W

VCC = 2.3 V,

SEL = V

CC, VA = 0 V, IBA = 8 mA

5

9

W

VCC = 2.3 V,

SEL = V

CC, VA = 1 V, IBA = 8 mA

11

18

W

VCC = 3 V,

SEL = 0 V V

A = 0 V, IBA = 8 mA

5

8

W

VCC = 3 V,

SEL = 0 V, V

A = 1 V, IBA = 8 mA

14

W

On Resistance Matching

RON

VCC = 3 V,

SEL = V

CC, VA = 0 V, IBA = 8 mA

0.45

W

VCC = 3 V,

SEL = V

CC, VA = 1 V, IBA = 8 mA

0.65

W

POWER REQUIREMENTS

VCC

2.33.6V

Quiescent Power Supply Current

ICC

Digital Inputs = 0 V or VCC;

SEL = V

CC

0.001

1

mA

Digital Inputs = 0 V or VCC ;

SEL = 0 V

0.65

1.2mA

Increase in ICC per Input

7

ICC

VCC = 3.6 V,

BE = 3.0 V; SEL = V

CC

130

mA

NOTES

1Temperature range is as follows: B Version: –40 C to +85 C.

2Typical values are at 25 C, unless otherwise stated.

3Guaranteed by design, not subject to production test.

4The digital switch contributes no propagation delay other than the RC delay of the typical R

ON of the switch and the load capacitance when driven by an ideal voltage

source. Since the time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagation delay to the system. Propagation delay

of the digital switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.

5Propagation delay matching between channels is calculated from the on resistance matching and load capacitance of 50 pF.

6See Timing Measurement Information section.

7This current applies to the control pin

BE only. The A and B ports contribute no significant ac or dc currents as they transition.

Specifications subject to change without notice.

B

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