Rainbow-electronics MAX1301 Bedienungsanleitung PDF herunterladen (Seite 4)

MAX1300/MAX1301

8-/4-Channel, ±12V Multirange Inputs,

Serial 16-Bit ADCs

4 _______________________________________________________________________________________

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

INTERNAL REFERENCE (Bypass REFCAP with 0.1µF to AGND1 and REF with 1.0µF to AGND1)

Reference Output Voltage V

REF

4.056 4.096 4.136

Reference Temperature

Coefficient

REF

±30

ppm/°C

REF shorted to AGND1 10

Reference Short-Circuit Current I

REFSC

REF shorted to AV

-1

Reference Load Regulation I

REF

= 0 to 0.5mA 0.1 10 mV

EXTERNAL REFERENCE (REFCAP = AV

)

Reference Input Voltage Range V

REF

3.800 4.136

REFCAP Buffer Disable

Threshold

RCTH

(Note 5)

DD1

- 0.4

DD1

- 0.1

REF

= +4.096V, external clock mode,

external acquisition mode, internal clock

mode, or partial power-down mode

200

Reference Input Current I

REF

= +4.096V, full power-down mode

±0.1 ±10

µA

External clock mode, external acquisition

mode, internal clock mode, or partial

power-down mode

20 45 kΩ

Reference Input Resistance R

REF

Full power-down mode 40 MΩ

DIGITAL INPUTS (DIN, SCLK, CS)

Input High Voltage V

0.7 x

DDO

Input Low Voltage V

0.3 x

DDO

Input Hysteresis V

HYST

0.2 V

Input Leakage Current I

= 0 to DV

DDO

-10

+10

µA

Input Capacitance C

10 pF

DIGITAL OUTPUTS (DOUT, SSTRB)

DDO

= 4.75V, I

SINK

= 10mA 0.4

Output Low Voltage V

DDO

= 2.7V, I

SINK

= 5mA 0.4

Output High Voltage V

SOURCE

= 0.5mA

DDO

- 0.4

DOUT Tri-State Leakage Current

DDO

CS = DV

DDO

-10

+10

µA

POWER REQUIREMENTS (AV

DD1

and AGND1, AV

DD2

and AGND2, DV

and DGND, DV

DDO

and DGNDO)

Analog Supply Voltage AV

DD1

4.75 5.25

Digital Supply Voltage DV

4.75 5.25

ELECTRICAL CHARACTERISTICS (continued)

(AV

DD1

= AV

DD2

= DV

DDO

= 5V, AGND1 = DGND = DGNDO = AGND2 = AGND3 = 0, f

CLK

= 3.5MHz (50% duty cycle),

external clock mode, V

REF

= 4.096V (external reference operation), REFCAP = AV

DD1

, maximum single-ended bipolar input range

(±12V), C

DOUT

= 50pF, C

SSTRB

= 50pF, T

= -40°C to +85°C, unless otherwise noted. Typical values are at T

= +25°C.)

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