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DH0357A: 280V, 3-Channel HV Driver & Amplifier

280V, 3-Channel HV Driver & Amplifier with DC/DC Boost Converter

DH0357A DAC HV Amplifier

Teledyne DALSA’s DH0357A is composed of two independent Channel HV Analog Amplifiers, a 1-Channel Fast HV Digital Driver, a DC/DC Boost Converter to supply HV power supply and MEMS sensing capability. ADC temperature monitor and I2C-bus interface are also included. 

The two independent low frequency (up to 4kHz) Channel HV Analog Amplifiers, have adjustable gain and selectable input modes: Single ended or Differential with a 5-bit resolution output DC bias. The 1-Channel Fast HV Digital Driver (up to 70kHz), has a 9-bit resolution output and a selectable slew rate.

The DC/DC Boost Converter, including internal power MOSFET, generates an 8-bit resolution HV power supply. Combined with external components, Slow and Fast MEMS movement sensing are made possible using integrated OpAmps configured as transimpedance amplifiers to convert current into voltage. Two OpAmps are available for Slow sensing: a low noise OpAmp and another with a 5-bit programmable output DC bias for additional gain and filtering. For Fast sensing, two more independent low voltage OpAmps with a 5-bit output DC bias and adjustable capacitive feedback compensation are available.
 

SPECIFICATIONS

Feature Specification
Part Number DH0357A
Output Voltage 100-280V
Analog Amplifier 2 independent low frequency (up to 4kHz) channels with adjustable gain and selectable input mode: single ended or differential with a 5-bit resolution output DC bias
Digital Driver 1 fast channel (up to 70kHz) with 9-bit resolution output and a selectable slew rate
DC/DC Boost Converter includes internal power MOSFET, generates an 8-bit resolution HV power supply
Negative supply No
MEMS movement sensing Integrated low noise OpAmps configured as TIA to convert current into voltage for both slow and fast channels
Packaging TQFN 44L, 6x6 mm, 0.4 P, RoHS Compliant
Interface I2C

 

Feature Highlights

  • 280V, 2 independent Channel HV Analog Amplifiers with adjustable gain and selectable input modes
  • 280V, 1-Channel Fast HV Digital Driver with a 9-bit resolution output and selectable slew rate 
  • 100V to 280V high voltage supply generated from a DC/DC Boost Converter with internal power MOSFET
  • OpAmps for Fast and Slow MEMS movement sensing
  • I2C TM Two Wire bidirectional Serial Interface
  • ADC Temperature Monitor
  • Small footprint and Form Factor with TQFN Package

Applications

  • Two uniaxial or one biaxial scanning MEMS mirror
  • Systems using electrostatic actuators such as
    • Pico-projectors: standalone or as integrated component
    • Heads-up display (HUD) systems
    • Optical MEMS such as micro-mirror

Documents

Full Datasheet Full Datasheet
 

Functional Block Diagram

Functional Block Diagram

Pin Configuration

Pin Configuration

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