HV2761 is a low charge injection, 24-channel, high voltage analog switch integrated circuit (IC) intended for use in applications requiring high voltage switching controlled by low voltage control signals, such as medical ultrasound imaging, piezoelectric transducer drivers, and printers. The bleed resistors eliminate voltage built up on capacitive loads such as piezoelectric transducers. Input data is shifted into a 24-bit shift register that can then be retained in a 24-bit latch. To reduce any possible clock feed through noise, the latch enable (LE) should be left high until all bits are clocked in. Data are clocked in during the rising edge of the clock. Using HVCMOS technology, this device combines high voltage bilateral DMOS switches and low power CMOS logic to provide efficient control of high voltage analog signals. The device is suitable for various combinations of high voltage supplies, e.g., VPP/VNN: +40V/-160V, +100V/-100V, and +160V/-40V.
Additional Features
24-channel high voltage analog switch
Integrated bleed resistors on the outputs
3.3 or 5.0V CMOS input logic level
3:1 MUX-deMUX with 8 states
20MHz data shift clock frequency
HVCMOS technology for high performance
Very low quiescent power dissipation,10µA
Low parasitic capacitance
DC to 50MHz analog signal frequency
-60dB typical OFF-isolation at 5.0MHz
CMOS logic circuitry for low power
Excellent noise immunity
Cascadable serial data register with latches
Flexible operating supply voltages
HV2761 is a low charge injection, 24-channel, high voltage analog switch integrated circuit (IC) intended for use in applications requiring high voltage switching controlled by low voltage control signals, such as medical ultrasound imaging, piezoelectric transducer drivers, and printers. The bleed resistors eliminate voltage built up on capacitive loads such as piezoelectric transducers. Input data is shifted into a 24-bit shift register that can then be retained in a 24-bit latch. To reduce any possible clock feed through noise, the latch enable (LE) should be left high until all bits are clocked in. Data are clocked in during the rising edge of the clock. Using HVCMOS technology, this device combines high voltage bilateral DMOS switches and low power CMOS logic to provide efficient control of high voltage analog signals. The device is suitable for various combinations of high voltage supplies, e.g., VPP/VNN: +40V/-160V, +100V/-100V, and +160V/-40V.
Additional Features
- 24-channel high voltage analog switch
- Integrated bleed resistors on the outputs
- 3.3 or 5.0V CMOS input logic level
- 3:1 MUX-deMUX with 8 states
- 20MHz data shift clock frequency
- HVCMOS technology for high performance
- Very low quiescent power dissipation,10µA
- Low parasitic capacitance
- DC to 50MHz analog signal frequency
- -60dB typical OFF-isolation at 5.0MHz
- CMOS logic circuitry for low power
- Excellent noise immunity
- Cascadable serial data register with latches
- Flexible operating supply voltages
