TMUX9832 No High Voltage Bias, Beyond the Supply, 220 V 1:1, 32-Channel Switch

With Latch-Up Immunity

1 Features

• Only +5 V bias supply required

– Very low power: 9.5 mW (typ) all 32CH

switching at 50 kHz

• Wide input signal range:

– Up to ±110 V, 220 VPP

– ±120 V, 240 VPP voltage overshoots supported

• Low off capacitance: 10.6 pF

• Low on resistance

• Up to 100 MHz data shift clock frequency

• Logic levels: 1.8 V to 5 V

• Integrated NDIN to invert input data polarity

• Fast turn-on time: 3 μs (maximum)

• Excellent HD2PC performance: -65 dB at 5 MHz

• Small BGA and QFN package options with

optimized pin-out

• Integrated thermal shutdown for improved system

reliability

• Integrated bleed resistors on the outputs

• Latch-up immunity by device construction

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

2 Applications

• Medical ultrasound imaging

• Ultrasound smart probe

• Non-destructive testing (NDT) metal flaw detection

• Piezoelectric transducer drivers

• Ultrasonic flow transmitters

• Printers

• Optical MEMS modules

3 Description

The TMUX9832 is a 32-channel low harmonic

distortion, low resistance, low capacitance high-

voltage analog switch integrated circuit (IC) with

latch-up immunity. Each device has 32 independently

selectable 1:1, single-pole, single-throw (SPST)

switch channels. The device only requires a +5 V

supply, while still being able to support ±110 V analog

signals. TMUX9832 also integrates bleed resistors on

its drain (Dx) pins to discharge capacitive loads, like

piezoelectric transducers. TMUX9832 is designed for

medical ultrasound imaging and other piezoelectric

transducer driver applications.

TMUX9832 integrates cascadable 32-bit shift register

with latches for controlling each of the 32 switches.

The daisy chain capability allows for many TMUX9832

devices to be controlled without requiring a separate

chip-select for every device. To reduce noise in the

signal path due to potential clock feed-through, the

active low latch enable can be held high while data is

loaded into the shift registers. The 32-bit shift register

can operate off of a 1.8 V – 5 V power supply and

support clock speeds up to 100 MHz.

Package Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

TMUX9832

RWF (VQFN)

10 mm × 10 mm

ZEH (NFBGA)

7.5 mm × 7.5 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

32-Bit

Shi

Register

S0

D0

S31

D31

D

LE

CLR

D

LE

CLR

VDD

VLL GND

LE CLR

DIN

CLK

DOUT

Latches

Level

Shi ers

HV

Switches

CLK_OUT

Thermal

Shutdown

/THERM

SET

SET

SET

DIN/

NDIN

DIN_SEL

Simplified Schematic

TMUX9832

SCDS470 – JUNE 2023

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. ADVANCE INFORMATION for preproduction products; subject to change

without notice.