Rainbow-electronics MAX1081 Manual do Utilizador descarregar pdf (Página 3)

MAX1080/MAX1081

300ksps/400ksps, Single-Supply, Low-Power,

8-Channel, Serial 10-Bit ADCs with Internal Reference

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—MAX1080 (continued)

DD1

= V

DD2

= +4.5V to +5.5V, COM = GND, f

SCLK

= 6.4MHz, 50% duty cycle, 16 clocks/conversion cycle (400ksps), external

+2.5V at REF, REFADJ = V

DD1

, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

= +25°C.)

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

To power down the internal reference

For small adjustments, from 1.22V

0 to 1mA output load

On/off leakage current, V

CH_

= 0 or V

DD1

= +25°C

Bipolar, V

COM

or V

CH_

= V

REF

/2, referenced

to COM or CH_

Unipolar, V

COM

= 0

V/V

+2.05

Buffer Voltage Gain

1.4 V

DD1

- 1.0

REFADJ Buffer Disable

Threshold

±100

REFADJ Input Range

1.22

REFADJ Output Voltage

µF

0.01 10

Capacitive Bypass at REFADJ

µF

4.7 10

Capacitive Bypass at REF

mV/mA

0.1 2.0

Load Regulation (Note 7)

ppm/°C

±15

TC V

REF

REF Output Temperature

Coefficient

REF Short-Circuit Current

2.480 2.500 2.520

REF

REF Output Voltage

pF18Input Capacitance

µA

±0.001 ±1

Multiplexer Leakage Current

±V

REF

CH_

Input Voltage Range, Single

Ended and Differential (Note 6)

= 0 or V

DD2

In power-down mode, f

SCLK

= 0

REF

= 2.500V, f

SCLK

= 0

REF

= 2.500V, f

SCLK

= 6.4MHz

(Note 8)

pFC

Input Capacitance

µA±1I

Input Leakage

V0.2V

HYST

Input Hysteresis

V0.8V

INL

Input Low Voltage

V3.0V

INH

Input High Voltage

320

µA

200 350

REF Input Current

1.0 V

DD1

50mV

REF Input Voltage Range

SINK

= 5mA V0.4V

Output Voltage Low

SOURCE

= 1mA V4V

Output Voltage High

CS = 5V

µA±10I

Three-State Leakage Current

CS = 5V

pF15C

OUT

Three-State Output Capacitance

ANALOG INPUTS (CH7–CH0, COM)

EXTERNAL REFERENCE (reference buffer disabled, reference applied to REF)

INTERNAL REFERENCE

DIGITAL INPUTS (DIN, SCLK, CS, SHDN)

DIGITAL OUTPUTS (DOUT, SSTRB)

1 2 3 4 5 6 7 8 ... 23 24

MAX1080/MAX1081 1

Comentários a estes Manuais

Sem comentários

Rainbow-electronics MAX1081 Manual do Utilizador Página 3

Comentários a estes Manuais

Manuais e produtos relacionados com Sensores Rainbow-electronics MAX1081