1 Features

• Wide supply range or input signal range:

– Dual supply: ±20V to ±110V, 220VPP

– 240VPP absolute maximum

• Low off capacitance: 5pF

• Low on capacitance: 10pF

• Low on resistance (RONL): 12Ω

• Fast turn-on time: 3μs (maximum)

• Up to 72MHz data shift clock frequency

• Logic levels: 1.8V to 5V

• Excellent off isolation performance: -70dB at 5

MHz

• Integrated bleed resistors on the outputs

• Latch-up immunity by device construction

• Extended temperature range: –40°C to 125°C

• Industry-standard 7mm × 7mm (Body Size) LQFP

package for pin-to-pin compatibility

2 Applications

• Medical ultrasound imaging

• Non-destructive testing (NDT) metal flaw detection

• Piezoelectric transducer drivers

• Ultrasonic flow transmitters

• Printers

• Optical MEMS modules

3 Description

The TMUX9616x is a 16-channel low resistance,

low capacitance high-voltage analog switch integrated

circuit (IC) with latch-up immunity. Each device has

16 independently selectable 1:1, single-pole, singlethrow

(SPST) switch channels. The device works well

with dual supplies up to ±110V. Asymmetric supply

biasing is also supported within the recommended

supply range. The TMUX9616x supports bidirectional

analog and digital signals on the source (Sx) and

drain (Dx) pins ranging from VSS to VDD. TMUX9616x

also integrates bleed resistors on its source (Sx) and

drain (Dx) pins to discharge capacitive loads, like

piezoelectric transducers. TMUX9616x is an excellent

choice for medical ultrasound imaging and other

piezoelectric transducer driver applications.

TMUX9616x integrates cascadable 16-bit shift

register with latches for controlling each of the 16

switches. The daisy chain capability allows for many

TMUX9616x devices to be controlled without requiring

a separate chip-select for every device. To reduce

noise in the signal path due to potential clock feedthrough,

the active low latch enable can be held high

while data is loaded into the shift registers. The 16-bit

shift register can operate off of a 1.8V – 5V power

supply. The 16-bit shift register can support clock

speeds up to 72MHz.