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.