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ADG3308BCBZ-1-REEL

更新时间： 2024-02-23 13:44:29

品牌	Logo	应用领域
亚德诺 - ADI		转换器电平转换器驱动程序和接口接口集成电路
页数	文件大小	规格书
20页	622K
描述
Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators

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技术参数
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ADG3308BCBZ-1-REEL 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	BGA
包装说明：	VFBGA, BGA20,4X5,20	针数：	20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.13
接口集成电路类型：	INTERFACE CIRCUIT	JESD-30 代码：	R-PBGA-B20
JESD-609代码：	e1	长度：	2.5 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	20	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	VFBGA	封装等效代码：	BGA20,4X5,20
封装形状：	RECTANGULAR	封装形式：	GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）：	260	电源：	1.2/5,1.8/5 V
认证状态：	Not Qualified	座面最大高度：	0.65 mm
子类别：	Other Interface ICs	最大供电电压：	5.5 V
最小供电电压：	1.15 V	标称供电电压：	1.8 V
电源电压1-最大：	5.5 V	电源电压1-分钟：	1.65 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Tin/Silver/Copper (Sn95.5Ag4.0Cu0.5)	端子形式：	BALL
端子节距：	0.5 mm	端子位置：	BOTTOM
处于峰值回流温度下的最长时间：	40	宽度：	2 mm
Base Number Matches：	1

ADG3308BCBZ-1-REEL 数据手册

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ADG3308/ADG3308-1

THEORY OF OPERATION

The ADG3308/ADG3308-1/ADG3308-2 level translators allow

the level shifting necessary for data transfer in a system where

multiple supply voltages are used. The device requires two

supplies, V_CCAand V_CCY(V_CCA≤ V_CCY). These supplies set the

logic levels on each side of the device. When driving the A pins,

the device translates the V_CCAcompatible logic levels to V_CCY

compatible logic levels available at the Y pins. Similarly, because

the device is capable of bidirectional translation, when driving

the Y pins the V_CCYcompatible logic levels are translated to the

V_CCAcompatible logic levels available at the A pins. When

EN = 0, the A1 pin to the A8 pin and the Y1 pin to the Y8 pin

are three-stated. When EN is driven high, the ADG3308/

ADG3308-1/ADG3308-2 go into normal operation mode and

perform level translation.

INPUT DRIVING REQUIREMENTS

To ensure correct operation of the ADG3308/ADG3308-1/

ADG3308-2, the circuit that drives the input of the device

should be able to ensure rise/fall times of less than 3 ns when

driving a load consisting of a 6 kΩ resistor in parallel with the

input capacitance of the ADG3308/ADG3308-1/ADG3308-2

channel.

OUTPUT LOAD REQUIREMENTS

The ADG3308/ADG3308-1/ADG3308-2 level translators are

designed to drive CMOS-compatible loads. If current-driving

capability is required, it is recommended to use buffers between

the ADG3308/ADG3308-1/ADG3308-2 outputs and the load.

ENABLE OPERATION

LEVEL TRANSLATOR ARCHITECTURE

The ADG3308/ADG3308-1/ADG3308-2 provide three-state

operation at the A I/O pins and the Y I/O pins by using the

enable (EN) pin, as shown in Table 4.

The ADG3308/ADG3308-1/ADG3308-2 consist of eight

bidirectional channels. Each channel can translate logic levels

in either the A→Y or the Y→A direction. They use a one-shot

accelerator architecture, ensuring excellent switching charac-

teristics. Figure 39 shows a simplified block diagram of a

bidirectional channel.

Table 4. Truth Table

Y I/O Pins

A I/O Pins

High-Z¹

Normal operation²

CCA

CCY

¹High impedance state.

²In normal operation, the ADG3308/ADG3308-1/ADG3308-2 perform level

translation.

6kΩ

When EN = 0, the ADG3308/ADG3308-1/ADG3308-2 enter

into three-state mode. In this mode, the current consumption

from both the V_CCAand V_CCYsupplies is reduced, allowing the

user to save power, which is critical, especially in battery-

operated systems. The EN input pin can only be driven with

ONE-SHOT GENERATOR

_CCYcompatible logic levels for the ADG3308, whereas the

ADG3308-1/ADG3308-2 can be driven with either V_CCA- or

_CCYcompatible logic levels.

6kΩ

POWER SUPPLIES

For proper operation of the device, the voltage applied to the

V_CCAmust always be less than or equal to the voltage applied

to V_CCY. To meet this condition, the recommended power-up

sequence is V_CCYfirst and then V_CCA. The ADG3308/ADG3308-1/

ADG3308-2 operate properly only after both supply voltages

reach their nominal values. It is not recommended to use the part

in a system where, during power-up, V_CCAmay be greater than

Figure 39. Simplified Block Diagram of an

ADG3308/ADG3308-1/ADG3308-2 Channel

The logic level translation in the A→Y direction is performed

using a level translator (U1) and an inverter (U2), whereas the

translation in the Y→A direction is performed using the U3

inverter and U4 inverter. The one-shot generator detects a rising

or falling edge present on either the A side or the Y side of the

channel. It sends a short pulse that turns on the PMOS transistors

(T1 and T2) for a rising edge, or the NMOS transistors (T3 and

T4) for a falling edge. This charges/discharges the capacitive load

faster, resulting in fast rise and fall times.

_CCYdue to a significant increase in the current taken from the

_CCAsupply. For optimum performance, the V_CCAand V_CCYpins

should be decoupled to GND as close as possible to the device.

The inputs of the unused channels (A or Y) should be tied to

their corresponding V_CCrail (V_CCAor V_CCY) or to GND.

Rev. C | Page 16 of 20

1...13 14 151617 18 19 20

中文翻译

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ADG3308BCBZ-1-REEL 替代型号

型号	品牌	替代类型	描述	数据表
ADG3308BCBZ-1-RL7	ADI	完全替代	Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators

与ADG3308BCBZ-1-REEL相关器件

型号	品牌	获取价格	描述	数据表
ADG3308BCBZ-1-RL7	ADI	获取价格	Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators
ADG3308BCBZ-2-REEL	ADI	获取价格	Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators
ADG3308BCBZ-2-RL7	ADI	获取价格	Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators
ADG3308BCP	ADI	获取价格	Low Voltage 1.2 V to 5.5 V, Bidirectional, Logic Level Translators
ADG3308BCPZ-REEL	ADI	获取价格	Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators
ADG3308BCPZ-REEL7	ADI	获取价格	Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators
ADG3308BRU	ADI	获取价格	Low Voltage 1.2 V to 5.5 V, Bidirectional, Logic Level Translators
ADG3308BRUZ	ADI	获取价格	Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators
ADG3308BRUZ-REEL	ADI	获取价格	Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators
ADG3308BRUZ-REEL7	ADI	获取价格	Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators

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