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參數(shù)資料
| 型號： | MAX5419PETA+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC POT DGTL 256-TAP I2C 8-TDFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 接片： | 256 |
| 電阻（歐姆）： | 200k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 35 ppm/°C |
| 存儲器類型： | 非易失 |
| 接口： | I²C（設(shè)備位址） |
| 電源電壓： | 2.7 V ~ 5.25 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-WDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 8-TDFN-EP（3x3） |
| 包裝： | 帶卷 (TR) |
MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
4
_______________________________________________________________________________________
Note 1:
The DNL and INL are measured with the potentiometer configured as a voltage-divider with H = VDD and L = GND. The
wiper terminal is unloaded and measured with a high-input-impedance voltmeter.
Note 2:
The DNL and INL are measured with the potentiometer configured as a variable resistor. H is unconnected and L = GND.
For the 5V condition, the wiper terminal is driven with a source current of 80A for the 50k
configuration, 40A for the
100k
configuration, and 20A for the 200k configuration. For the 3V condition, the wiper terminal is driven with a source
current of 40A for the 50k
configuration, 20A for the 100k configuration, and 10A for the 200k configuration.
Note 3:
The wiper resistance is measured using the source currents given in Note 2. For operation to VDD = 2.7V, see Wiper
Resistance vs. Temperature in the
Typical Operating Characteristics.
Note 4:
The device draws higher supply current when the digital inputs are driven with voltages between (VDD - 0.5V) and (GND +
0.5V). See Supply Current vs. Digital Input Voltage in the
Typical Operating Characteristics.
Note 5:
Wiper at midscale with a 10pF load (DC measurement). L = GND; an AC source is applied to H; and the W output is mea-
sured. A 3dB bandwidth occurs when the AC W/H value is 3dB lower than the DC W/H value.
Note 6:
The programming current operates only during power-up and NV writes.
Note 7:
SCL clock period includes rise and fall times tR and tF. All digital input signals are specified with tR = tF = 2ns and timed
from a voltage level of (VIL + VIH) / 2.
Note 8:
Wiper settling time is the worst-case 0% to 50% rise time measured between consecutive wiper positions. H = VDD,
L = GND, and the wiper terminal is unloaded and measured with a 10pF oscilloscope probe (see the
Typical Operating
Characteristics for the tap-to-tap switching transient).
Note 9:
An appropriate bus pullup resistance must be selected depending on board capacitance. Refer to the document linked to
this web address: www.semiconductors.philips.com/acrobat/literature/9398/39340011.pdf.
Note 10: The idle time begins from the initiation of the stop pulse.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Data Setup Time
tSU-DAT
100
ns
Data Hold Time
tHD-DAT
0
0.9
s
SDA, SCL Rise Time
tR
300
ns
SDA, SCL Fall Time
tF
300
ns
Setup Time for STOP Condition
tSU-STO
0.6
s
Bus Free Time Between STOP
and START Condition
tBUF
Minimum power-up rate = 0.2V/ms
1.3
s
Pulse Width of Spike Suppressed
tSP
50
ns
Maximum Capacitive Load for
Each Bus Line
CB
(Note 9)
400
pF
Write NV Register Busy Time
tBUSY
(Note 10)
12
ms
TIMING CHARACTERISTICS (continued)
(VDD = +2.7V to +5.25V, H = VDD, L = GND, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = +5V, TA =
+25°C. See Figures 1 and 2.) (Note 7)
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