MAX1284 Ver la hoja de datos (PDF) - Maxim Integrated

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MAX1284

400ksps/300ksps, Single-Supply, Low-Power, Serial 12-Bit ADCs with Internal Reference

Maxim Integrated 

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

Serial 12-Bit ADCs with Internal Reference

ELECTRICAL CHARACTERISTICS—MAX1284 (continued)

(VDD = +4.5V to +5.5V; fSCLK = 6.4MHz, 50% duty cycle, 16 clocks/conversion cycle (400ksps), 4.7µF capacitor at REF, TA = TMIN to

TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

INTERNAL REFERENCE

REF Output Voltage

REF Short-Circuit Current

VREF

REF Output Tempco

Load Regulation (Note 5)

TC VREF

Capacitive Bypass at REF

DIGITAL INPUTS (SCLK, CS, SHDN)

Input High Voltage

VINH

Input Low Voltage

Input Hysteresis

VINL

VHYST

Input Leakage

IIN

Input Capacitance

CIN

DIGITAL OUTPUT (DOUT)

Output Voltage Low

VOL

Output Voltage High

VOH

Three-State Leakage Current

IL

Three-State Output Capacitance

POWER SUPPLY

COUT

Positive Supply Voltage (Note 6)

VDD

Positive Supply Current (Note 7)

IDD

Shutdown Supply Current

ISHDN

Power-Supply Rejection

PSR

CONDITIONS

TA = +25°C

0 to 1mA output load

VIN = 0V or VDD

ISINK = 5mA

ISOURCE = 1mA

VCS = +5V

VCS = +5V

VDD = +5.5V

SCLK = VDD, SHDN = GND

VDD = +5V ±10%, midscale input

MIN TYP MAX UNITS

2.48 2.50 2.52

V

30

mA

±15

ppm/°C

0.1

2.0 mV/mA

4.7

10

µF

3.0

V

0.8

V

0.2

V

±1

µA

15

pF

0.4

V

4

V

±10

µA

15

pF

4.5

5.5

V

2.5

4.0

mA

2

10

µA

±0.5 ±2.0 mV

ELECTRICAL CHARACTERISTICS—MAX1285

(VDD = +2.7V to +3.6V; fSCLK = 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle (300ksps), 4.7µF capacitor at REF, TA = TMIN to

TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

DC ACCURACY (Note 1)

Resolution

Relative Accuracy (Note 2)

Differential Nonlinearity

Offset Error

Gain Error (Note 3)

Gain-Error Temperature

Coefficient

SYMBOL

CONDITIONS

INL

DNL

No missing codes over temperature

MIN TYP MAX UNITS

12

Bits

±1.0 LSB

±1.0 LSB

±6.0 LSB

±6.0 LSB

±1.6

ppm/°C

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