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Product Detailed Parameters
- Description：IC OPAMP GP 32 CIRCUIT 100MQFP
- Series：-
- Mfr：Microchip Technology
- Package：Tray
- Amplifier Type：General Purpose
- Number of Circuits：32
- Output Type：-
- Slew Rate：2.2V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：-
- Voltage - Input Offset：-
- Current - Supply：-
- Current - Output / Channel：550 µA
- Voltage - Supply Span (Min)：4.5 V
- Voltage - Supply Span (Max)：300 V
- Operating Temperature：-10°C ~ 85°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：100-BQFP
- Supplier Device Package：100-MQFP (20x14)
- -3db Bandwidth：4 kHz
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Overview
The HV256FG-G is a 32-channel high-voltage amplifier array integrated circuit manufactured by Microchip Technology. It operates on a single high-voltage supply up to 300V and two low-voltage supplies (VDD and VNN). The device features an internal closed-loop gain of 72V/V, providing an output voltage swing from 0V to VPP minus 5V. It supports capacitive loads up to 3000 pF with a typical slew rate of 2.2V/µs. The package type is a 100-lead MQFP.
Feature Summary
- Integrates thirty-two independent high-voltage amplifiers within a single array configuration.
- Features adjustable output current source and sink limits controlled via external resistors.
- Includes an internal silicon junction diode for die temperature monitoring.
- Designed with layout characteristics optimized for die applications.
Applications
- Microelectromechanical Systems (MEMS) Driver
- Piezoelectric Transducer Driver
- Optical Crosspoint Switches
Procurement Notes
Verify the specific ordering suffix 'FG' corresponds to the 100-lead MQFP package and 'G' indicates lead-free/RoHS compliance. Confirm that the media type designation aligns with tray packaging requirements. Ensure compatibility with the required power-up and power-down sequences involving external protection diodes to prevent device damage during operation.
Selection Notes
Select this component when a high-density array of high-voltage amplifiers is required. The fixed internal gain of 72V/V simplifies design for applications needing precise voltage scaling from low-voltage inputs. Consider the thermal resistance and operating temperature range if high ambient temperatures are expected. Verify that the input voltage range and supply voltages match the system architecture.
Part Context
The HV256 belongs to Microchip's family of high-voltage amplifier arrays. It is designed to interface directly with digital-to-analog converters or microprocessors to drive high-voltage loads. The device replaces discrete high-voltage op-amp solutions, reducing board space and complexity in MEMS and optical switching systems.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation.
FAQ
How are the maximum output sourcing and sinking currents adjusted?
The current limits are set using two external resistors, RSOURCE and RSINK. The limit is approximately 12.5V divided by the respective resistor value.
What is the purpose of the BYP pins?
The BYP-VPP, BYP-VDD, and BYP-VNN pins are internal high-impedance-current mirror gate nodes brought out to maintain stable biasing currents in noisy power supply environments.
