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參數(shù)資料
| 型號(hào)： | DS3903E-020+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 8/11頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC POT NV TRIPLE 128POS 20-TSSOP |
| 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： | 128 |
| 電阻（歐姆）： | 10k，10k，90k |
| 電路數(shù)： | 3 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 ±300 ppm/°C |
| 存儲(chǔ)器類型： | 非易失 |
| 接口： | I²C（設(shè)備位址） |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-TSSOP |
| 包裝： | 帶卷 (TR) |
DS3903
Triple 128-Position Nonvolatile
Digital Potentiometer
6
______________________________________________________________________
Typical Operating Characteristics (continued)
(VCC = 5.0V, 10k
plots apply to both pot0 and pot2, TA = +25°C unless otherwise noted.)
VOLTAGE-DIVIDER ABSOLUTE LINEARITY
vs. WIPER SETTING (90k
)
DS3903
toc13
WIPER SETTING
ABSOLUTE
LINEARTIY
(LSB)
100
80
60
40
20
0.04
0.08
0.12
0.16
0.20
0
120
VOLTAGE-DIVIDER RELATIVE LINEARITY
vs. WIPER SETTING (90k
)
DS3903
toc12
WIPER SETTING
RELATIVE
LINEARTIY
(LSB)
100
80
60
40
20
0.01
0.02
0.03
0.04
0.05
0
120
Pin Description
PIN
NAME
FUNCTION
1
SDA
2-Wire Serial Data. Input/output for 2-wire data.
2
SCL
2-Wire Serial Clock. Input for 2-wire clock.
3A0
Address-Select Input. Determines device 2-wire address.
4WP
Write-Protect Input. Must be grounded to write to the potentiometer registers. An internal pullup locks
the potentiometer positions if this pin is not connected.
5, 16, 17
18, 19
N.C.
No Connection
6, 8, 9
L0, L1, L2
Potentiometer Low Terminals. Voltages on these pins should remain between GND and +5.5V while
VCC is above +2.7V. Low terminals can be at potentials above the wiper or high terminals.
7, 12, 14
W1, W2, W0
Potentiometer Wiper Terminal. Voltages on these pins should remain between GND and +5.5V while
VCC is above +2.7V.
10
GND
Ground Terminal
11, 13, 15
H2, H1, H0
Potentiometer High Terminals. Voltages on these pins should remain between GND and +5.5V while
VCC is above +2.7V. High terminals can be at potentials below the low terminals.
20
VCC
Supply Voltage Terminal
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