MAX1132 Datasheet, PDF (4/19 Pages) Maxim Integrated Products – 16-Bit ADC, 200ksps, 5V Single-Supply with Reference

16-Bit ADC, 200ksps, 5V Single-Supply
with Reference
ELECTRICAL CHARACTERISTICS (continued)
(AV_DD = DV_DD = +5V ±5%, f_SCLK = 4.8MHz, external clock (50% duty cycle), 24 clocks/conversion (200ksps), bipolar input, external
V_REF = +4.096V, V_REFADJ = AV_DD, C_REF = 2.2µF, C_CREF = 1µF, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at
T_A = +25°C.)
PARAMETER
Capacitive Bypass at REF
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
0.47
10
µF
Maximum Capacitive Bypass at
REFADJ
10
µF
REFADJ Output Voltage
4.096
V
REFADJ Input Range
For small adjustments from 4.096V
±100
mV
REFADJ Buffer Disable
Threshold
To power-down the internal reference
AV_DD -
0.5V
AV_DD -
0.1V
V
Buffer Voltage Gain
1
V/V
EXTERNAL REFERENCE (Reference buffer disabled. Reference applied to REF)
Input Range (Notes 5 and 6)
3.0 4.096 4.2
V
Input Current
DIGITAL INPUTS
V_REF = 4.096V, f_SCLK = 4.8MHz
V_REF = 4.096V, f_SCLK = 0
In power-down, f_SCLK = 0
250
230
µA
0.1
Input High Voltage
Input Low Voltage
Input Leakage
Input Hysteresis
Input Capacitance
DIGITAL OUTPUTS
V_IH
V_IL
I_IN
V_HYST
C_IN
V_IN = 0 or DV_DD
2.4
V
0.8
V
±1
µA
0.2
V
10
pF
Output High Voltage
V_OH
I_SOURCE = 0.5mA
DV_DD -
0.5
V
Output Low Voltage
Three-State Leakage Current
V_OL
I_SINK = 5mA
I_SINK = 16mA
I_L
CS = DV_DD
0.4
V
0.8
±10
µA
Three-State Output
Capacitance
CS = DV_DD
10
pF
POWER SUPPLIES
Analog Supply (Note 7)
Digital Supply (Note 7)
Analog Supply Current
Digital Supply Current
AV_DD
4.75
5
5.25
V
DV_DD
4.75
5
5.25
V
I_ANALOG
Unipolar mode
Bipolar mode
SHDN = 0, or software power-down mode
5
8
mA
8.5
11
0.3
10
µA
I_DIGITAL
Unipolar or bipolar mode
SHDN = 0, or software power-down mode
2.5
3.5
mA
2.2
10
µA
Power-Supply Rejection Ratio
(Note 8)
PSRR
AV_DD = DV_DD = 4.75V to 5.25V
72
dB
4 _______________________________________________________________________________________