MAX1464 Maxim, MAX1464 Datasheet - Page 7

• Manufacturer Part Number: MAX1464
• Description: Low-Power - Low-Noise Multichannel Sensor Signal Processor
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
T
Note 1: Current into a pin is defined as positive. Current out of a pin is defined as negative. All voltages are referenced to V
Note 2: All modules are off, except internal reference, oscillator, and power-on reset (POR) and CKSEL bit is set to zero.
Note 3: The CPU and ADC are not on at the same time. The ADC and CPU currents are not additive.
Note 4: I
Note 5: For gains above 240, an additional digital gain can be provided by the CPU.
Note 6: The PWM input data is the 12-bit left-justified data in the 16-bit input field.
Note 7: PWM gain error measured as:
Note 8: The internal reference voltage has a nominal value of 5V (4
Note 9: Input-referred offset error is the ADC offset error divided by the PGA gain.
Note 10: When the CKIO is configured in output mode to observe the internal oscillator signal, the total current is above the
Note 11: f
Note 12: Allow a minimum elapsed time of 4.2ms when executing a FLASH erase command, before sending any other command.
Note 13: FLASH programming current is guaranteed by design.
DIGITAL INPUTS (GPIO1, GPIO2, SCLK, DI, CKSEL, CKIO, CS)
Input High Threshold Voltage
Input Low Threshold Voltage
Input Hysteresis
Input Leakage Current
Input Capacitance
DIGITAL OUTPUTS (GPIO1, GPIO2, DO, CKIO)
Output-Voltage High
Output-Voltage Low
FLASH MEMORY
Maximum Erase Cycles
Minimum Erase Time
Minimum Write Time
FLASH Programming Current
A
DDF
= +25°C, unless otherwise noted.) (Note 1)
= V
DD
specified limits.
Allow a minimum elapsed time of 80µs between FLASH write commands.
DACn
CLK
PARAMETER
GE
= 4.5V to 5.5V, V
PWM
must be within 5% of 4MHz.
does not include output buffer currents (I
_______________________________________________________________________________________
=
PWM
SSF
OUT
= V
Low-Power, Low-Noise Multichannel
(
F
SS
00
SYMBOL
= 0V, f
t
t
Xh
V
I
ERASE
WRITE
V
DDFP
V
C
V
V
IHYS
I
3584
OH
IN
OL
IH
IL
IN
)
−
CLK
PWM
= 4.0MHz, T
CKSEL, CS = V
GPIO1, GPIO2, SCLK, DI, CKIO = V
R
R
R
R
(Notes 11, 12)
(Notes 11, 12)
(Notes 11, 12)
Writing to the FLASH or erasing the FLASH
(Note 13)
LOAD
LOAD
LOAD
LOAD
OUT
(
100
= ∞
= 2kΩ to V
= ∞
= 2kΩ to V
OPLGn
A
Xh
= T
or I
)
CONDITIONS
SS
Sensor Signal Processor
MIN
×
OPSMn
100%
SS
DD
to T
✕
V
GPIO1, GPIO2, DO
CKIO (Note 10)
GPIO1, GPIO2, DO
CKIO (Note 10)
GPIO1, GPIO2, DO
CKIO (Note 10)
GPIO1, GPIO2, DO
CKIO (Note 10)
MAX
BG
).
) even when V
. Typical values are at V
DD
DD
is greater or less than 5VDC.
V
V
DD
0.8 x
MIN
V
DD
4.2
80
DDF
DD
- 0.15
- 0.1
= V
DD
TYP
10k
0.2
4.9
4.6
0.1
0.4
38
38
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5
= 5.0V, V
30
MAX
0.2 x
0.05
V
+90
-90
0.2
DD
SSF
= V
Cycles
SS
UNITS
SS
mA
ms
µA
pF
µs
.
V
V
V
V
V
= 0V,
7