MAX5166MECM

更新时间： 2024-01-05 13:10:57

品牌	Logo	应用领域
美信 - MAXIM		采样保持电路放大器放大器电路信息通信管理
页数	文件大小	规格书
12页	178K
描述
32-Channel Sample/Hold Amplifier with Four Multiplexed Inputs

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MAX5166MECM 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	QFP	包装说明：	TQFP-48
针数：	48	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.33.00.01
风险等级：	5.91	Is Samacsys：	N
最长采集时间：	4 µs	标称采集时间：	2.5 µs
放大器类型：	SAMPLE AND HOLD CIRCUIT	最大模拟输入电压：	7 V
最小模拟输入电压：	-4 V	最大下降率：	0.04 V/s
JESD-30 代码：	S-PQFP-G48	JESD-609代码：	e0
长度：	7 mm	湿度敏感等级：	1
标称负供电电压 (Vsup)：	-5 V	功能数量：	1
端子数量：	48	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：	LFQFP	封装等效代码：	QFP48,.35SQ,20
封装形状：	SQUARE	封装形式：	FLATPACK, LOW PROFILE, FINE PITCH
峰值回流温度（摄氏度）：	245	电源：	10,-5,5 V
认证状态：	Not Qualified	采样并保持/跟踪并保持：	SAMPLE
座面最大高度：	1.6 mm	子类别：	Sample and Hold Circuits
标称供电电压 (Vsup)：	10 V	表面贴装：	YES
技术：	BICMOS	温度等级：	INDUSTRIAL
端子面层：	Tin/Lead (Sn85Pb15)	端子形式：	GULL WING
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	7 mm
Base Number Matches：	1

MAX5166MECM 数据手册

32-Channel Sample/Hold Amplifier

with Four Multiplexed Inputs

MODE

SELECT

ADDRESS

(A0–A2)

HOLD STEP

OUTPUT

INPUT

Figure 2. Timing Performance

Simultaneously sampling two or more channels reduces

offset voltage but increases acquisition time. Multiply

the single-channel acquisition time by the number of

channels sampling.

__________Applications Information

Combining Inputs

The MAX5166 contains a separate input for each 1-to-8

multiplexer. Externally connect the input pins to form

larger multiplexers. When all four inputs are connected

to the same source, the MAX5166 is functionally equiv-

alent to the MAX5165, except the MAX5166 does not

contain output clamping diodes.

Multiplexed DAC

Figure 5 shows a typical demultiplexer application.

Different digital codes are converted by the digital-to-

analog converter (DAC) and then stored on eight differ-

ent channels, or as many as 32 different channels

when all four inputs are active. The 100mV/sec (max)

droop rate requires refreshing the hold capacitors

every 100ms before the voltage drops by 1/2LSB for an

8-bit DAC with a 5V full-scale voltage.

Control-Line Reduction

The MAX5166 contains four separate 1-to-8 multiplexers

and individual mode selectors for each multiplexer. When

sampling one channel at a time, use an external 2-to-4

decoder (with active-low outputs) to reduce the number

of digital control lines from seven to five (Figure 3).

Powering the MAX5166

The MAX5166 does not require a special power-up

sequence to avoid latchup. The device requires three

separate supply voltages for operation; however, when

one or two of the voltages are not available, DC-DC

charge-pump (switched-capacitor) converters provide

a simple, efficient solution. The MAX860 provides volt-

age doubling or inversion, ideal for conversions from

+5V to +10V or from +5V to -5V. The MAX860 also

functions as a voltage divider to provide conversion

from +10V to +5V.

Single vs. Simultaneous Sampling

Individually control the four mode/multiplexer-select

pins to simultaneously sample on four channels, the

same channel for each multiplexer (Figure 4). Each

mode-select pin controls sampling on one of the 1-to-8

multiplexers, while the 3-bit address selects one of the

eight channels on all the multiplexers (Tables 1 and 2).

Setting any combination of the mode-select pin low

enables sampling on the addressed channels for the

selected multiplexers.

_______________________________________________________________________________________

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与MAX5166MECM相关器件

型号	品牌	描述	获取价格	数据表
MAX5166MECM-T	MAXIM	Sample and Hold Circuit, 1 Func, Sample, 2.5us Acquisition Time, BICMOS, PQFP48, TQFP-48	获取价格
MAX5166NCCM	MAXIM	32-Channel Sample/Hold Amplifier with Four Multiplexed Inputs	获取价格
MAX5166NCCM+	MAXIM	Sample and Hold Circuit, 1 Func, Sample, 2.5us Acquisition Time, BICMOS, PQFP48, TQFP-48	获取价格
MAX5166NCCM+T	MAXIM	Sample and Hold Circuit, 1 Func, Sample, 2.5us Acquisition Time, BICMOS, PQFP48, TQFP-48	获取价格
MAX5166NECM	MAXIM	32-Channel Sample/Hold Amplifier with Four Multiplexed Inputs	获取价格
MAX5166NECM+	MAXIM	暂无描述	获取价格

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