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參數(shù)資料
| 型號(hào)： | ADG3241 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 2.5 V/3.3 V, 1-Bit, 2-Port Level Translator Bus Switch in SOT-66 |
| 中文描述： | 2.5 V/3.3五，1位，2端口電平轉(zhuǎn)換總線開關(guān)采用SOT - 66 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大小： | 213K |
| 代理商： | ADG3241 |
REV. A
ADG3241
–9–
BUS SWITCH APPLICATIONS
Mixed Voltage Operation, Level Translation
Bus switches can provide an ideal solution for interfacing
between mixed voltage systems. The ADG3241 is suitable for
applications where voltage translation from 3.3 V technology to
a lower voltage technology is needed. This device can translate
from 3.3 V to 1.8 V, from 2.5 V to 1.8 V, or bidirectionally
from 3.3 V directly to 2.5 V.
Figure 4 shows a block diagram of a typical application in which
a user needs to interface between a 3.3 V ADC and a 2.5 V
microprocessor. The microprocessor may not have 3.3 V toler-
ant inputs, therefore placing the ADG3241 between the two
devices allows the devices to communicate easily. The bus
switch directly connects the two blocks, thus introducing
minimal propagation delay, timing skew, or noise.
3.3V ADC
2.5V
3.3V
2.5V
MICROPROCESSOR
A
3.3V
Figure 4. Level Translation between a 3.3 V ADC
and a 2.5 V Microprocessor
3.3 V to 2.5 V Translation
When V
CC
is 3.3 V (
SEL
= 3.3 V) and the input signal range is
0 V to V
CC
, the maximum output signal will be clamped to
within a voltage threshold below the V
CC
supply.
ADG3241
2.5V
2.5V
3.3V
2.5V
3.3V
Figure 5. 3.3 V to 2.5 V Voltage Translation,
SEL
= V
CC
In this case, the output will be limited to 2.5 V, as shown in
Figure 6. This device can be used for translation from 2.5 V to
3.3 V devices and also between two 3.3 V devices.
V
IN
2.5V
V
OUT
0V
3.3V
SWITCH
INPUT
S
O
3.3V SUPPLY
SEL
= 3.3V
Figure 6. 3.3 V to 2.5 V Voltage Translation,
SEL
= V
CC
2.5 V to 1.8 V Translation
When V
CC
is 2.5 V (
SEL
= 2.5 V) and the input signal range is
0 V to V
CC
, the maximum output signal will, as before, be clamped
to within a voltage threshold below the V
CC
supply. In this case,
the output will be limited to approximately 1.8 V, as shown
in Figure 8.
ADG3241
1.8V
2.5V
2.5V
Figure 7. 2.5 V to 1.8 V Voltage Translation,
SEL
= 2.5 V
CC
V
IN
1.8V
V
OUT
0V
2.5V
SWITCH
INPUT
S
O
2.5V SUPPLY
SEL
= 2.5V
Figure 8. 2.5 V to 1.8 V Voltage Translation,
SEL
= V
CC
3.3 V to 1.8 V Translation
The ADG3241 offers the option of interfacing between a 3.3 V
device and a 1.8 V device. This is possible through use of the
SEL
pin. The
SEL
pin is an active low control pin.
SEL
acti-
vates internal circuitry in the ADG3241 that allows voltage
translation between 3.3 V devices and 1.8 V devices.
ADG3241
1.8V
3.3V
3.3V
Figure 9. 3.3 V to 1.8 V Voltage Translation,
SEL
= 0 V
When V
CC
is 3.3 V and the input signal range is 0 V to V
CC
, the
maximum output signal will be clamped to 1.8 V, as shown in
Figure 9. To do this, the
SEL
pin must be tied to Logic 0. If
SEL
is unused, it should be tied directly to V
CC
.
V
IN
1.8V
V
OUT
0V
3.3V
SWITCH
INPUT
S
O
3.3V SUPPLY
SEL
= 0V
Figure 10. 3.3 V to 1.8 V Voltage Translation,
SEL
= 0 V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADG3241BKS-500RL7 | 2.5 V/3.3 V, 1-Bit, 2-Port Level Translator Bus Switch in SOT-66 |
| ADG3241BKS-REEL | 2.5 V/3.3 V, 1-Bit, 2-Port Level Translator Bus Switch in SOT-66 |
| ADG3241BKS-REEL7 | 2.5 V/3.3 V, 1-Bit, 2-Port Level Translator Bus Switch in SOT-66 |
| ADG3241BRY-REEL7 | 2.5 V/3.3 V, 1-Bit, 2-Port Level Translator Bus Switch in SOT-66 |
| ADG3245 | 2.5 V/3.3 V, 8-Bit, 2-Port Level Translating, Bus Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADG3241BKS | 制造商:Analog Devices 功能描述:- Tape and Reel |
| ADG3241BKS-500RL7 | 制造商:AD 制造商全稱:Analog Devices 功能描述:2.5 V/3.3 V, 1-Bit, 2-Port Level Translator Bus Switch in SOT-66 |
| ADG3241BKS-REEL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| ADG3241BKS-REEL7 | 制造商:Analog Devices 功能描述:Bus Switch 1-Element CMOS 1-IN 6-Pin SC-70 T/R 制造商:Rochester Electronics LLC 功能描述:2.5/3.3V,1BIT,2 PORT, BUS SWITCH IC. - Tape and Reel |
| ADG3241BKSZ-500RL7 | 功能描述:IC SW BUS 2.5-3.3V 1BIT SC70-6 RoHS:是 類別:集成電路 (IC) >> 邏輯 - 信號(hào)開關(guān)，多路復(fù)用器，解碼器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:74LVC 類型:解碼器/多路分解器 電路:1 x 2:4 獨(dú)立電路:2 輸出電流高，低:24mA，24mA 電壓電源:單電源 電源電壓:1.65 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:16-SO 包裝:Digi-Reel® 其它名稱:296-28947-6 |
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