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HV257X

更新时间: 2024-01-24 13:21:23
品牌 Logo 应用领域
超科 - SUPERTEX 采样保持电路放大器放大器电路高压
页数 文件大小 规格书
9页 618K
描述
32 CHANNEL HIGH VOLTAGE SAMPLE AND HOLD AMPLIFIER ARRAY

HV257X 技术参数

生命周期:Active包装说明:DIE,
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.33.00.01风险等级:5.75
放大器类型:SAMPLE AND HOLD CIRCUITJESD-30 代码:R-XUUC-N96
JESD-609代码:e0负供电电压上限:-7 V
功能数量:1端子数量:96
封装主体材料:UNSPECIFIED封装代码:DIE
封装形状:RECTANGULAR封装形式:UNCASED CHIP
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
采样并保持/跟踪并保持:SAMPLE子类别:Sample and Hold Circuit
供电电压上限:8 V表面贴装:YES
端子面层:TIN LEAD端子形式:NO LEAD
端子位置:UPPER处于峰值回流温度下的最长时间:NOT SPECIFIED
Base Number Matches:1

HV257X 数据手册

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HV257  
32-Channel High Voltage  
Sample and Hold Amplifier Array  
Features  
General Description  
The Supertex HV257 is a 32-channel high voltage sample and  
hold amplifier array integrated circuit. It operates on a single high  
voltage supply, up to 300V, and two low voltage supplies, VDD  
32 independent high voltage amplifiers  
300V operating voltage  
295V output voltage  
and VNN  
.
2.2V/µs typical output slew rate  
Adjustable output current source limit  
Adjustable output current sink limit  
Internal closed loop gain of 72V/V  
12Mfeedback impedance  
All 32 sample and hold circuits share a common analog input,  
Vsig. The individual sample and hold circuits are selected by a  
5 to 32 logic decoder. The sampled voltage on the holding  
capacitor is buffered by a low voltage amplifier and amplified by  
a high voltage amplifier with a closed loop gain of 72V/V. The  
internal closed loop gain is set for an input voltage range of 0V  
to 4.096V. The input voltage can be up to 5.0V, but the output will  
saturate.Themaximumoutputvoltageswingis5VbelowtheVPP  
high voltage supply. The outputs can drive capacitive loads of up  
to 3000pF.  
Layout ideal for die applications  
Application  
MEMS (microelectromechanical systems) driver  
The maximum output source and sink current can be adjusted by  
using two external resistors. An external RSOURCE resistor  
controls the maximum sourcing current and an external RSINK  
resistor controls the maximum sinking current. The current limit  
is approximately 12.5V divided by the external resistor value.  
The setting is common for all 32 outputs. A low voltage silicon  
junction diode is made available to help monitor the die  
temperature.  
Piezoelectric transducer driver  
Optical crosspoint switches (using MEMS technology)  
Typical Application  
High Voltage  
Power Supply  
Supertex HV257  
HVOUT  
0
VSIG  
DAC  
HVOUT  
HVOUT  
1
2
y
y
Low Voltage  
Power Supply  
x
x
A0  
A1  
A2  
HVOUT3  
Micro  
Processor  
32  
High Voltage  
OpAmp Array  
Low Voltage  
Channel  
Select  
Sample  
and Hold  
MEMS  
Array  
A3  
A4  
HVOUT30  
HVOUT31  
EN  
AGND  
VNN  
DGND  
A122104  

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