- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383369 > MAX349MJN (MAXIM INTEGRATED PRODUCTS INC) Serially Controlled, Low-Voltage, 8-Channel/Dual 4-Channel Multiplexers PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX349MJN |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Serially Controlled, Low-Voltage, 8-Channel/Dual 4-Channel Multiplexers |
| 中文描述： | 8-CHANNEL, SGL ENDED MULTIPLEXER, CDIP18 |
| 封裝： | CERAMIC, DIP-18 |
| 文件頁數(shù)： | 17/20頁 |
| 文件大小： | 301K |
| 代理商： | MAX349MJN |
Power-S upply Considerations
Overview
The MAX349/MAX350 construction is typical of most
CMOS analog switches. It has three supply pins: V+, V-
and GND. V+ and V- are used to drive the internal
CMOS switches, and they set the limits of the analog
voltage on any switch. Reverse ESD-protection diodes
are internally connected between each analog signal
pin and both V+ and V-. If any analog signal exceeds
V+ or V-, one of these diodes will conduct. During normal
operation, these (and other) reverse-biased ESD diodes
leak, forming the only current drawn from V+ or V-.
Virtually all the analog leakage current is through the
ESD diodes. Although the ESD diodes on a given sig-
nal pin are identical, and therefore fairly well balanced,
they are reverse biased differently. Each is biased by
either V+ or V- and the analog signal. This means their
leakages vary as the signal varies. The difference in the
two diode leakages to the V+ and V- pins constitutes
the analog signal-path leakage current. All analog leak-
age current flows to the supply terminals, not to the
other switch terminal. This is why both sides of a given
switch can show leakage currents of either the same or
opposite polarity.
There is no connection between the analog signal
paths and GND.
V+ and GND power the internal logic and logic-level
translators, and set both the input and output logic lim-
its. The logic-level translators convert the logic levels to
switched V+ and V- signals to drive the analog signal
gates. This drive signal is the only connection between
the logic supplies (and signals) and the analog sup-
plies. V+ and V- have ESD-protection diodes to GND.
The logic-level inputs and output have ESD protection
to V+ and to GND.
The logic-level thresholds are CMOS and TTL compati-
ble when V+ is +5V. As V+ rises, the threshold increases
slightly. Therefore, when V+ reaches +12V, the threshold
is about 3.1V; above the TTL-guaranteed high-level mini-
mum of 2.8V, but still compatible with CMOS outputs.
M
S erially Controlled, Low-Voltage,
8-Channel/Dual 4-Channel Multiplexers
______________________________________________________________________________________
17
FOUR CLOCK
PULSES
DIN
SCLK
D4
SW4
D
0
SW
0
Figure 7. Differential Multiplexer Input Control
CS
SCLK
DIN
MAX349
MAX350
CS
SCLK
DIN
MAX349
MAX350
CS
SCLK
DIN
MAX349
MAX350
TOOTHER
SERIAL
DEVICES
DIN
SCLK
CS1
CS2
CS3
Figure 6. Addressable Serial Interface
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX350EPN | Serially Controlled, Low-Voltage, 8-Channel/Dual 4-Channel Multiplexers |
| MAX349EPN | Serially Controlled, Low-Voltage, 8-Channel/Dual 4-Channel Multiplexers |
| MAX350CAP | Dual 8-Port LVDS Repeater 64-TSSOP -40 to 85 |
| MAX350CPN | Serially Controlled, Low-Voltage, 8-Channel/Dual 4-Channel Multiplexers |
| MAX350CWN | Serially Controlled, Low-Voltage, 8-Channel/Dual 4-Channel Multiplexers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX-35 | 功能描述:保險(xiǎn)絲 MAX FUSE RoHS:否 制造商:Littelfuse 產(chǎn)品:Surface Mount Fuses 電流額定值:0.5 A 電壓額定值:600 V 保險(xiǎn)絲類型:Fast Acting 保險(xiǎn)絲大小/組:Nano 尺寸:12.1 mm L x 4.5 mm W 安裝風(fēng)格: 端接類型:SMD/SMT 系列:485 |
| MAX3503EGP | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX3503EGP-T | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX3503EVKIT | 功能描述:交換機(jī) IC 開發(fā)工具 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:USB Power Switches 工具用于評(píng)估:MAX4984E 工作電源電壓:2.8 V to 5.5 V |
| MAX3505EGP | 功能描述:射頻放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點(diǎn):37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。