MAX1462 Datasheet, PDF (3/16 Pages) Maxim Integrated Products – Low-Voltage, Low-Power, 16-Bit Smart ADC

Low-Voltage, Low-Power,
16-Bit Smart ADC
ELECTRICAL CHARACTERISTICS (continued)
(V_DD = +2.4V to 3.6V, V_SS = 0, f_XIN = 2MHz, T_A = T_MIN to T_MAX, unless otherwise noted.)
PARAMETER
OUTPUT DAC (Note 7)
DAC Resolution
Integral Nonlinearity
Differential Nonlinearity
UNCOMMITTED OP AMP
Op Amp Supply Current
Input Common-Mode Range
Open-Loop Gain
Offset Voltage (as Unity-Gain
Follower)
SYMBOL
CONDITIONS
INL
DNL
CMR
A_V
V_OS
V_IN = max [(V_SS + 2.3), (V_DD - V_SS) / 2]
(no load)
MIN TYP MAX UNITS
12
Bits
1
LSB
0.5
LSB
80
µA
V_SS + 1.3
V_DD - 0.9
V
60
dB
-30
30
mV
Output Voltage Swing
No load
Output Current Range
V_OUT = (V_SS + 0.2V) to (V_DD - 0.2V)
DIGITAL INPUTS: START, CS1, CS2, SDIO (Note 8), RESET, XIN (Note 9), TEST
Input High Voltage
Input Low Voltage
Input Hysteresis
Input Leakage
Input Capacitance
DIGITAL OUTPUTS: D[11...0]
V_IH
V_IL
V_HYST
I_IN
C_IN
V_IN = 0 or V_DD
(Note 10)
Output Voltage Low
V_OL
I_SINK = 200µA
Output Voltage High
V_OH I_SOURCE = 200µA
Three-State Leakage Current
I_L
CS_ = V_SS
Three-State Output Capacitance C_OUT CS_ = V_SS (Note 10)
DIGITAL OUTPUTS: SDIO (Note 8), SDO, EOC, OUT
Output Voltage Low
Output Voltage High
V_OL
V_OH
I_SINK = 200µA
I_SOURCE = 200µA
Three-State Leakage Current
I_L
Three-State Output Capacitance C_OUT
CS_ = V_SS
CS_ = V_SS (Note 10)
V_SS + 0.05
V_DD - 0.05
V
±200
µA
80
% V_DD
20 % V_DD
1.0
V
±10
µA
50.0
pF
80 % V_DD
20
% V_DD
±10
µA
50.0
pF
10
% V_DD
90
% V_DD
±10
µA
50.0
pF
Note 1: EEPROM programming requires a minimum V_DD = 4.75V. I_DD may exceed its limits during this time.
Note 2: This value does not include the sensor or load current. This value does include the uncommitted op amp current. Note that
the MAX1462 will convert continuously if REPEAT MODE is set in the EEPROM.
Note 3: See the Analog Front End, Including PGA, CO-DAC, ADC, and Temperature Sensor section.
Note 4: The signal input to the ADC is the output of the PGA plus the output of the CO-DAC. The reference to the ADC is V_DD. The
plus full-scale input to the ADC is +V_DD and the minus full-scale input to the ADC is -V_DD. This specification shows the con-
tribution of the CO-DAC to the ADC input.
Note 5: See Figure 2 for ADC outputs between ±85%.
Note 6: The sensor and the MAX1462 must always be at the same temperature during calibration and use.
Note 7: The Output DAC is specified using the external lowpass filter (Figure 8).
Note 8: SDIO is an input/output digital pin. It is only enabled as a digital output pin when the MAX1462 receives from the test sys-
tem the commands 8 hex or A hex (Table 4).
Note 9: XIN is a digital input pin only when the TEST pin is high.
Note 10: Guaranteed by design. Not subject to production testing.
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