MAX1021 Datasheet, PDF (5/40 Pages) Maxim Integrated Products – 10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports

10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
ELECTRICAL CHARACTERISTICS (continued)
(AV_DD = DV_DD = 2.7V to 5.25V, external reference V_REF = 2.5V, f_CLK = 3.6MHz (50% duty cycle), T_A = -40°C to +85°C, unless
otherwise noted. Typical values are at AV_DD = DV_DD = 3V, T_A = +25°C. Outputs are unloaded, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
INTERNAL REFERENCE
REF1 Output Voltage
REF1 Temperature Coefficient
TC_REF
REF1 Short-Circuit Current
V_REF = 2.5V
EXTERNAL REFERENCE INPUT
REF1 Input Voltage Range
REF1 Input Impedance
V_REF1
R_REF1
REF modes 01, 10, and 11 (Note 4)
DIGITAL INTERFACE
DIGITAL INPUTS (SCLK, DIN, CS, CNVST, LDAC)
Input-Voltage High
Input-Voltage Low
V_IH DV_DD = 2.7V to 5.25V
V_IL
DV_DD = 3.6V to 5.25V
DV_DD = 2.7V to 3.6V
Input Leakage Current
I_L
Input Capacitance
C_IN
DIGITAL OUTPUT (DOUT) (Note 14)
Output-Voltage Low
V_OL I_SINK = 2mA
Output-Voltage High
V_OH I_SOURCE = 2mA
MIN
TYP
MAX
UNITS
2.482
2.50
2.518
V
±30
ppm/°C
0.39
mA
0.7
AV_DD
V
70
100
130
kΩ
2.4
V
0.8
V
0.6
0.01
±10
µA
15
pF
DV_DD -
0.5
0.4
V
V
Tri-State Leakage Current
Tri-State Output Capacitance
C_OUT
DIGITAL OUTPUT (EOC) (Note 14)
Output-Voltage Low
V_OL
Output-Voltage High
V_OH
I_SINK = 2mA
I_SOURCE = 2mA
±10
µA
15
pF
DV_DD -
0.5
0.4
V
V
Tri-State Leakage Current
Tri-State Output Capacitance
C_OUT
DIGITAL OUTPUTS (GPIO_) (Note 14)
GPIOC_ Output-Voltage Low
GPIOC_ Output-Voltage High
I_SINK = 2mA
I_SINK = 4mA
I_SOURCE = 2mA
±10
µA
15
pF
DV_DD -
0.5
0.4
V
0.8
V
GPIOA_ Output-Voltage Low
GPIOA_ Output-Voltage High
I_SINK = 15mA
I_SOURCE = 15mA
DV_DD -
0.8
0.8
V
V
Tri-State Leakage Current
Tri-State Output Capacitance
C_OUT
±10
µA
15
pF
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