Microchip HV257 Manual

Microchip Ikke kategoriseret HV257

Læs gratis den danske manual til Microchip HV257 (26 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 7 personer og har en gennemsnitlig bedømmelse på 4.9 stjerner ud af 4 anmeldelser. Har du et spørgsmål om Microchip HV257, eller vil du spørge andre brugere om produktet?

Download PDF

Side 1/26

 2017 Microchip Technology Inc. DS20005827A-page 1

HV257

Features

• Thirty-two Independent High-voltage Amplifiers

• 300V Operating Voltage

• 295V Output Voltage

• 2.2V/µs Typical Output Slew Rate

• Adjustable Output Current Source Limit

• Adjustable Output Current Sink Limit

• Internal Closed-loop Gain of 72V/V

• 12 MΩ Feedback Impedance

• Layout Ideal for Die Applications

Applications

• Microelectromechanical Systems (MEMS) Driver

• Piezoelectric Transducer Driver

• Optical Crosspoint Switches

(Using MEMS Technology)

General Description

The 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 and VNN.

All 32 sample-and-hold circuits share a common

analog input, VSIG

. The individual sample-and-hold

circuits are selected by a five-to-32 logic decoder. The

sampled voltage on the holding capacitor is buffered by

a low-voltage amplifier and is magnified 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

5V, but the output will saturate. The maximum output

voltage swing is 5V below the VPP high-voltage supply.

The outputs can drive capacitive loads of up to

3000 pF.

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.

Package Type

100-lead MQFP

(Top view)

100

See Table 3-1 for pin information.

32-Channel High-Voltage Sample-and-Hold Amplifier Array

HVOUT0

AVNN

AVDD

S/H-0

5 to 32

Decoder

VSIG

S/H-1

HVOUT1

S/H-31

HVOUT31

VPP

AVDD

AVNN

Q31

HVOUT

Current

Sink

Limiting

To all HVOUT

amplifiers

RSOURCE

RSINK

DVDD

AVNN

DGND

AGND

VPP

AVDD

To internal VPP bus

To internal analog VDD bus

To internal analog VNN bus

To internal digital VDD bus

To internal digital VNN bus

DVDD

DVNN

AVDD

AVNN

BYP-VPP BYP-AVDD BYP-AVNN Anode Cathode

Bias Circuit

HVOUT

Current

Source

Limiting

To all HVOUT

amplifiers 71R

VPP

AVNN

71R

VPP

AVNN

71R

HV257

DS20005827A-page 2  2017 Microchip Technology Inc.

Functional Block Diagram

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	HV257

Har du brug for hjælp?

Hvis du har brug for hjælp til Microchip HV257 stil et spørgsmål nedenfor, og andre brugere vil svare dig

Dit navn*

Din email*

Skriv dit spørgsmål her

Ikke kategoriseret Microchip Manualer

Microchip AT7913 Manual

1 September 2025

Microchip ATmega1281 Manual

19 Juli 2025

Microchip ATtiny461 Manual

19 Juli 2025

Microchip ATxmega128D3 Manual

19 Juli 2025

Microchip ATxmega128D4 Manual

19 Juli 2025

Microchip ATTINY28 Manual

19 Juli 2025

Microchip ATTINY861 Manual

19 Juli 2025

Microchip ATmega1280 Manual

19 Juli 2025

Microchip ATtiny84A Manual

19 Juli 2025

Microchip ATmega645P Manual

19 Juli 2025

Ikke kategoriseret Manualer

Nyeste Ikke kategoriseret Manualer

Elektrobock PT44 Manual

14 September 2025

BSS Audio FDS-366T Manual

14 September 2025

Systemair Airline R-114 Manual

14 September 2025

IFM SU2031 Manual

14 September 2025

Morel Tempo Ultra Integra 502 Manual

14 September 2025

IMC Networks 232CL9R Manual

14 September 2025

Varta Speed Charger 57955 Manual

14 September 2025

Melissa & Doug 9336 Manual

14 September 2025

Opus dataPREDATOR Manual

13 September 2025

Varta Wireless Power Bank 20000 57909 Manual

13 September 2025