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MAX1284-MAX1285 Datasheet, PDF (3/15 Pages) Maxim Integrated Products – 400ksps/300ksps, Single-Supply, Low-Power, Serial 12-Bit ADCs with Internal Reference
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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 COUT
POWER SUPPLY
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 = 0 or VDD
ISINK = 5mA
ISOURCE = 1mA
CS = +5V
CS = +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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