
MAX1084/MAX1085
400ksps/300ksps, Single-Supply, Low-Power,
Serial 10-Bit ADCs with Internal Reference
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3
ELECTRICAL CHARACTERISTICS—MAX1084 (continued)
(VDD = +4.5V to +5.5V, fSCLK = 6.4MHz, 50% duty cycle, 16 clocks/conversion cycle (400ksps), 4.7F capacitor at REF, TA = TMIN to
TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
VCS = 5V
ISOURCE = 1mA
ISINK = 5mA
VIN = 0V or VDD
0 to 1.0mA output load
TA = +25°C
V
4.5
5.5
VDD
Positive Supply Voltage (Note 6)
pF
15
COUT
Three-State Output Capacitance
A
±10
IL
Three-State Leakage Current
V
4
VOH
Output Voltage High
V
0.4
VOL
Output Voltage Low
pF
15
CIN
Input Capacitance
A
±1
IIN
Input Leakage
V
0.2
VHYST
Input Hysteresis
V
0.8
VINL
Input Low Voltage
V
3.0
VINH
Input High Voltage
F
4.7
10
Capacitive Bypass at REF
mV/mA
0.1
2.0
Load Regulation (Note 5)
V
2.48
2.50
2.52
VREF
REF Output Voltage
mA
30
REF Short-Circuit Current
ppm/°C
±15
TC VREF
REF Output Tempco
VDD = 5V ±10%, midscale input
SCLK = VDD, SHDN = GND
VDD = 5.5V
mV
±0.5
±2.0
PSR
Power-Supply Rejection
A
210
ISHDN
Shutdown Supply Current
mA
2.5
4.0
IDD
Positive Supply Current (Note 7)
ELECTRICAL CHARACTERISTICS—MAX1085
(VDD = +2.7V to +3.6V, fSCLK = 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle (300ksps), 4.7F capacitor at REF, TA = TMIN to
TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
MAX1085A
MAX1085B
No missing codes over temperature
CONDITIONS
LSB
±0.5
INL
Relative Accuracy (Note 2)
Bits
10
Resolution
ppm/°C
±1.6
Gain-Error Temperature
Coefficient
LSB
±3.0
Gain Error (Note 3)
±1.0
LSB
±1.0
DNL
Differential Nonlinearity
LSB
±3.0
Offset Error
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
DC ACCURACY (Note 1)
INTERNAL REFERENCE
DIGITAL INPUTS (SCLK, CS, SHDN)
DIGITAL OUTPUT (DOUT)
POWER SUPPLY