Microchip Technology HV2925 Analog Switch
Microchip Technology HV2925 Analog Switch is a 64-channel, high-voltage switch with two bleed resistors on both sides. The device features low power dissipation, low harmonic distortion, and low charge injection. Although the Switch employs a single +5V bias supply, all channels can pass up to ±100V pulsed signals.
The Microchip HV2925 Switch offers a 2.9A peak switch-on current, typical 6Ω ON resistance, and 50MHz small-signal bandwidth. The device additionally has a dual 66MHz Serial-to-Parallel Interface (SPI) to independently control two sets of 32 switches' ON/OFF states. The two SPI pins can be configured in daisy-chain mode to reduce the control logic from an FPGA. The CLR pin can also turn 64 switches ON or all OFF at once.
The Microchip HV2925 is equipped in a 169-ball, 11mm x 11mm x 1.5mm LFBGA package, which gives a density of 1.89mm2/ch.
The device is intended for use in applications demanding high-voltage switching by low-voltage controls, such as ultrasound imaging, nondestructive testing, sonar, piezoelectric transducer drivers, and printers.
Features
- 64-channel high-voltage analog switch
- Only a +5V bias supply is required
- 3.3V and 5V CMOS input logic level
- Asymmetric switch topology for small size
- 66MHz data shift clock frequency
- Dual SPI for Fast ON/OFF control
- Low parasitic capacitance
- Low harmonic distortion
- DC to 50MHz analog small-signal frequency
- 200kHz to 50MHz large-signal frequency
- -70dB typical off isolation at 5.0MHz
- Excellent noise immunity
- Cascadable serial data register with latches
Applications
- High voltage switching by low voltage controls applications
- Ultrasound imaging
- Sonar
- Nondestructive testing
- Piezoelectric transducer drivers and printers
Specifications
- 200V analog signal voltage
- 2 output bleed resistors
- 2X66MHz SPI interface
- 11mm x 11mm 169-ball LFBGA package
- 2.9A switch current
- 6Ω switch resistance typ
- SPST configuration