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MAX1026_11 Datasheet, PDF (4/22 Pages) Maxim Integrated Products – 10-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference
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10-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V ±5%, fSAMPLE = 300kHz, fSCLK = 4.8MHz (50% duty cycle), VREF = 4.096V, TA = TMIN to TMAX, unless otherwise noted.
Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
DIGITAL INPUTS (SCLK, DIN, CS, CNVST)(Note 8)
Input Voltage Low
VIL
Input Voltage High
VIH
Input Hysteresis
VHYST
Input Leakage Current
Input Capacitance
IIN
VIN = 0V or VDD
CIN
DIGITAL OUTPUTS (DOUT, EOC)
Output Voltage Low
Output Voltage High
Three-State Leakage Current
Three-State Output Capacitance
VOL
VOH
IL
COUT
ISINK = 2mA
ISINK = 4mA
ISOURCE = 1.5mA
CS = VDD
CS = VDD
POWER REQUIREMENTS
Supply Voltage
VDD
During temp sense
Internal
reference
fSAMPLE = 300ksps
fSAMPLE = 0, REF on
Supply Current (Note 9)
IDD
Shutdown
External
reference
During temp sense
fSAMPLE = 300ksps
Shutdown
Power-Supply Rejection
PSR VDD = 4.75V to 5.25V; full-scale input
MIN TYP
2.0
200
±0.01
15
VDD - 0.5
±0.05
15
4.75
2800
2300
1050
0.2
1800
1600
0.2
±0.2
MAX
0.8
±1.0
0.4
0.8
±1
5.25
3200
2550
1350
5
2300
1700
5
±1.4
UNITS
V
V
mV
μA
pF
V
V
μA
pF
V
μA
mV
Note 1: Tested at VDD = +5V, unipolar input mode.
Note 2: Offset nulled.
Note 3: Time for reference to power up and settle to within 1 LSB.
Note 4: Conversion time is defined as the number of clock cycles multiplied by the clock period; clock has 50% duty cycle.
Note 5: The operational input voltage range for each individual input of a differentially configured pair is from GND to VDD. The oper-
ational input voltage difference is from -VREF / 2 to +VREF / 2.
Note 6: See Figure 3 (Input Equivalent Circuit) and the Sampling Error vs. Source Impedance curve in the Typical Operating
Characteristics section.
Note 7: Fast automated test, excludes self-heating effects.
Note 8: When CNVST is configured as a digital input, do not apply a voltage beween VIL and VIH.
Note 9: Supply current is specified depending on whether an internal or external reference is used for voltage conversions.
Temperature measurements always use the internal reference.
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