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參數資料
| 型號： | DS1808 |
| 元件分類： | 數字電位計 |
| 英文描述： | Dual Log Digital Potentiometer |
| 文件頁數： | 1/17頁 |
| 文件大小： | 431K |
| 代理商： | DS1808 |
1 of 17
072601
FEATURES
Two 32-position log-tapers
60dB attenuation range:
–1dB per step (12 taps)
–2dB per step (12 taps)
–3dB per step (8 taps)
–90dB low-end attenuation
2-Wire Interface Control
Power Supply: Dual 12V
Maximum Voltage Across Potentiometers:
V
Standard Resistance Value: 45k
Packages: 16-Pin SOIC
Operating Temperature: -40
o
C to +85
o
C
ORDERING INFORMATION
DS1808Z-050
+85oC 45k
16-Pin SOIC -40oC to
DS1808Z-050/T&R 16-Pin SOIC -40oC to
+85oC 45k
PIN ASSIGNMENT
L1
A0
V
CC
SCL
SDA
W0
L0
W
H1
H0
CE
V
B
1
2
12
11
10
9
7
8
13
15
6
5
4
3
14
A2
A1
GND
16
V
DD
PIN DESCRIPTION
V
CC
V
B
V
DD
H
0
, H
1
L
0
, L
1
W
0
, W
1
SDA
SCL
/CE
GND
A0, A1, A2
- +12V Supply
- -12V Supply (substrate bias)
- 5V Digital Supply
- High-end Terminals
- Low-end Terminals
- Wiper Terminals
- 2-Wire Serial Data Input/Output
- 2-Wire Clock Input
- 2-Wire Interface Enable
- Ground
- Address Pins
DESCRIPTION
The DS1808 is a dual-channel, digitally controlled, log-taper potentiometer. Each potentiometer is
comprised of 32 wiper terminal positions plus a mute position. The device has three accessible
potentiometer terminals that include the high-side terminal (H), the low-side terminal (L), and the wiper
terminal (W). The resolution of the DS1808 is shown in Figure 8 and represents 1dB per step for the first
12 taps, 2dB per step for the next 12 taps and 3dB per step for the bottom 8 taps, providing a total
attenuation range of 60dB. The mute position of the DS1808 provides greater than 90dB of attenuation.
The wiper position on the resistor ladder is selected via a 6-bit register, whose value is controlled by the
industry-standard 2-wire interface. The interface consists of two control signals: SDA and SCL. The
DS1808 is available in a standard 45k
resistor value. The DS1808 is specified to operate over the
industrial temperature range (-40
o
C to +85
o
C) and is available in the 16-pin SOIC package. The DS1808
was designed for low-cost, stereo volume control applications. The device is specified to operate from
±12V
±10% supplies and accept a maximum input signal range of ±12V.
DS1808
Dual Log Digital Potentiometer
www.maxim-ic.com
16-Pin SOIC (150-mil)
相關PDF資料 |
PDF描述 |
|---|---|
| DS1808 | Process: 1P, 1M, 5.0um, 30V NF & PF, UVNd, UVPd ,N+ESD,TEOS Spacer, Passivation w/Nov TEOS Oxide-Nitride |
| DS1809-010 | Dallastat, 64-position linear taper |
| DS1809U-010 | Dallastat, 64-position linear taper |
| DS1809U-050 | Dallastat, 64-position linear taper |
| DS1809U-100 | Dallastat, 64-position linear taper |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS1808Z-050 | 功能描述:數字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1808Z-050/T&R | 制造商:Maxim Integrated Products 功能描述:DUAL LOG HI VOLTAGE POT T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC POT DUAL LOG HV 50K 16-SOIC |
| DS1808Z-050/T&R | 功能描述:數字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1808Z-050+ | 功能描述:數字電位計 IC Dual Log RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| DS1808Z-050+T&R | 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 32POS 45KOHM DUAL 16SOIC N - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC POT DUAL LOG HV 50K 16-SOIC |
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