Timing characteristics – Rainbow Electronics MAX118 User Manual

Page 4

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MAX114/MAX118

+5V, 1Msps, 4 & 8-Channel,
8-Bit ADCs with 1µA Power-Down

4

_______________________________________________________________________________________

TIMING CHARACTERISTICS

(V

DD

= +4.75V, T

A

= +25°C, unless otherwise noted.) (Note 4)

C

L

= 50pF

C

L

= 50pF,

R

L

= 5.1k

to V

DD

C

L

= 100pF (Note 5)

t

RD

< t

INTL

,

(Note 5)

ns

50

80

t

INTH

RD to INT Delay
(RD Mode)

ns

t

CRD

+

50

t

ACC0

Data-Access Time
(RD Mode)

(Note 7)

(Note 6)

ns

160

t

ACQ

ns

70

t

RDY

CS to RDY Delay

ns

0

t

CSH

CS to RD, WR
Hold Time

ns

0

t

CSS

CS to RD, WR
Setup Time

Minimum Acquisition
Time

ns

60

ns

320

t

UP

Power-Up Time

ns

700

t

CRD

Conversion Time
(RD Mode)

ns

660

t

CWR

Conversion Time
(WR-RD Mode)

t

DH

Data Hold Time

85

t

CRD

+

65

185

85

0

0

70

370

875

90

t

CRD

+

75

260

100

0

0

80

520

975

T

A

= T

MIN

to T

MAX

100

75

35

610

Pipelined mode, C

L

= 50pF

C

L

= 50pF

185

t

RD

< t

INTL

, C

L

= 100pF

(Note 5)

235

t

RD

< t

INTL

,

determined by t

ACC1

t

RD

> t

INTL

, determined by

t

ACC2

60

205

0.35

ns

80

t

IHWR

WR to INT Delay

ns

65

t

READ2

RD Pulse Width
(WR-RD Mode)

Pipelined mode, C

L

= 100pF

ns

30

t

AH

ns

380

500

t

INTL

WR to INT Delay

ns

150

t

RI

RD to INT Delay

ns

185

t

ACC1

Data-Access Time
(WR-RD Mode)

Multiplexer Address
Hold Time

ns

45

ns

160

t

READ1

RD Pulse Width
(WR-RD Mode)

µs

0.25

t

RD

Delay Between

WR

and

RD Pulses

µs

0.25

10

t

WR

WR Pulse Width

t

ID

Data-Access Time
after

INT

0.28

10

120

85

40

700

220

275

70

240

0.45

0.4

10

110

t

RD

> t

INTL

, C

L

= 100pF

(Note 5)

ns

90

t

ACC2

Data-Access Time
(WR-RD Mode)

130

Note 4:

Input control signals are specified with t

r

= t

f

= 5ns, 10% to 90% of 5V, and timed from a voltage level of 1.6V.

Note 5:

See Figure 1 for load circuit. Parameter defined as the time required for the output to cross 0.8V or 2.4V.

Note 6:

See Figure 2 for load circuit. Parameter defined as the time required for the data lines to change 0.5V.

Note 7:

Also defined as the Minimum Address-Valid to Convert-Start Time.

MAX11_C/E

T

A

= +25°C

ALL GRADES

CONDITIONS

MIN

MAX

MIN

MAX

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

MAX11_M

C

L

= 20pF

C

L

= 100pF

685

865

1125

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