MAX5432LETA 데이터 시트보기 (PDF) - Maxim Integrated
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MAX5432LETA Datasheet PDF : 17 Pages
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32-Tap, Nonvolatile, I2C, Linear, Digital
Potentiometers
TIMING CHARACTERISTICS (continued)
(VDD = +2.7V to +5.25V, VH = VDD, VL = GND, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = +5V, TA =
+25°C.) (Figures 1 and 2) (Note 1)
Note 2: The DNL and INL are measured with the potentiometer configured as a variable resistor. For the 3-terminal potentiometers
(MAX5432/MAX5433), H is unconnected and L = GND. At VDD = 5V, W is driven with a source current of 80µA for the 50kΩ
configuration, and 40µA for the 100kΩ configuration. At VDD = 3V, W is driven with a source current of 40µA for the 50kΩ
configuration, and 20µA for the 100kΩ configuration.
Note 3: The DNL and INL are measured with the potentiometer configured as a voltage-divider with H = VDD and L = GND
(MAX5432/MAX5433 only). The wiper terminal is unloaded and measured with an ideal voltmeter.
Note 4: Full-scale error is defined as
VW - VH .
⎛
⎝⎜
VH
31
⎞
⎠⎟
VW - VL .
Note 5: Zero-scale error is defined as
⎛
⎝⎜
VH
31
⎞
⎠⎟
Note 6: The wiper resistance is the worst value measured by injecting the currents given in Note 2 into W with L = GND.
RW = (VW - VH) / IW.
Note 7: The device draws current in excess of the specified supply current when the digital inputs are driven with voltages between
(VDD - 0.5V) and (GND + 0.5V). See the Supply Current vs. Digital Input Voltage graph in the Typical Operating Characteristics.
Note 8: Wiper is at midscale with a 10pF capacitive load. Potentiometer set to midscale, L = GND, an AC source is applied to H,
and the output is measured as 3dB lower than the DC W/H value in dB.
Note 9: This is measured from the STOP pulse to the time it takes the output to reach 50% of the output step size (divider mode). It
is measured with a maximum external capacitive load of 10pF.
Note 10: The programming current exists only during NV writes (12ms typ).
Note 11: Digital timing is guaranteed by design and characterization, and is not production tested.
Note 12: An appropriate bus pullup resistance must be selected depending on board capacitance. Refer to the I2C-bus specifica-
tion document linked to this web address: www.semiconductors.philips.com/acrobat/literature/9398/39340011.pdf
Note 13: The idle time begins from the initiation of the stop pulse.
(VDD = +5V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
STANDBY SUPPLY CURRENT
vs. TEMPERATURE
1.5
DIGITAL INPUTS = GND OR VDD
1.2
0.9
0.6
VDD = 3V
0.3
VDD = 5V
0
-40 -15 10
35
60
85
TEMPERATURE (°C)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
1.0
DIGITAL INPUTS = GND OR VDD
0.8
0.6
0.4
0.2
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGE
1000
VDD = 5V
100
10
VDD = 3V
1
0.1
0
1
2
3
4
5
DIGITAL INPUT VOLTAGE (V)
4 _______________________________________________________________________________________
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