MAX194BEWE Просмотр технического описания (PDF) - Maxim Integrated

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MAX194BEWE

14-Bit, 85ksps ADC with 10µA Shutdown

Maxim Integrated 

14-Bit, 85ksps ADC with 10µA Shutdown

ELECTRICAL CHARACTERISTICS (continued)

(VDDD = VDDA = +5V, VSSD = VSSA = -5V, fCLK = 1.7MHz, VREF = +5V, TA = TMIN to TMAX, unless otherwise noted. Typical

values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

POWER REQUIREMENTS (cont.)

Power Dissipation

VDDD = VDDA = 5.25V, VSSD = VSSA = -5.25V

80

mW

VDDD Shutdown Supply Current

(Note 5)

IDDD

VDDD = VDDA = 5.25V, VSSD = VSSA = -5.25V,

BP/UP/SHDN = 0V

1.6

5

µA

VSSD Shutdown Supply Current

ISSD

VDDD = VDDA = 5.25V, VSSD = VSSA = -5.25V,

BP/UP/SHDN = 0V

0.1

5

µA

VDDA Shutdown Supply Current IDDA

VDDD = VDDA = 5.25V, VSSD = VSSA = -5.25V,

BP/UP/SHDN = 0V

0.1

5

µA

VSSA Shutdown Supply Current

ISSA

VDDD = VDDA = 5.25V, VSSD = VSSA = -5.25V,

BP/UP/SHDN = 0V

0.1

5

µA

Note 1: Accuracy and dynamic performance tests performed after calibration.

Note 2: Tested with 50% duty cycle. Duty cycles from 25% to 75% at 1.7MHz are acceptable.

Note 3: See External Clock section.

Note 4: Guaranteed by design, not tested.

Note 5: Measured in shutdown mode with CLK and SCLK low.

TIMING CHARACTERISTICS

(VDDD = VDDA = +5V, VSSD = VSSA = -5V, unless otherwise noted.)

PARAMETER

CONV Pulse Width

CONV to CLK Falling

Synchronization (Note 4)

SYMBOL

CONDITIONS

TA = +25°C

TYP

tCW

TA = 0°C to

+70°C

MIN MAX

20

TA = -40°C to

+85°C

MIN MAX

30

tCC1

10

10

CONV to CLK Rising

Synchronization (Note 4)

tCC2

40

40

Data Access Time

Bus Relinquish Time

CLK to EOC High

CLK to EOC Low

CLK to DOUT Valid

SCLK to DOUT Valid

CS to SCLK Setup Time

CS to SCLK Hold Time

Acquisition Time

Calibration Time

RESET to CLK Setup Time

RESET to CLK Hold Time

Start-Up Time (Note 6)

tDV

CL = 50pF

tDH

CL = 10pF

tCEH

CL = 50pF

tCEL

CL = 50pF

tCD

CL = 50pF

tSD

CL = 50pF

tCSS

tCSH

tAQ

tCAL 14,000(CLK)

tRCS

tRCH

tSU

Exiting

shutdown

3.2

80

80

40

40

300

300

300

300

100 350 100 375

20 140 20 160

75

75

-10

-10

2.4

2.4

8.2

8.2

-40

-40

120

120

Note 6: Settling time required after deasserting shutdown to achieve less than 0.1LSB additional error.

TA = -55°C to

+125°C

MIN MAX

35

10

40

90

40

350

350

100 400

20 160

75

-10

2.4

8.2

-40

120

UNITS

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

µs

ms

ns

ns

µs

4 _______________________________________________________________________________________

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