MAX14724：Serial-Controlled 8:4 Matrix Switch Multiplexer

Multiplex ±2.5V Common-Mode Signals in Tiny Package

The MAX14724 is a serial-controlled, 8:4 full-matrix analog multiplexer. The device operates from either a single wide supply or dual ±2.5V supplies. A wide operating range makes the device ideal for battery-powered, portable instruments. All channels guarantee break-before-make switching. The serial control is selectable between I2C and SPI. Both modes provide individual control of each independent switch so that any combination of switches can be applied. I2C mode provides one address-select pin, allowing for addressing up to two devices on a single bus. The SPI mode includes a DO pin that can be used to daisy-chain multiple devices together with a single select signal. The MAX14724 features bidirectional operation and can handle rail-to-rail analog signals. All control inputs are 1.6V-logic compatible. This device is available in a small 20-pin, 4mm × 4mm, TQFN and 20-bump, 2mm × 1.7mm, wafer-level package (WLP).

Key Features

Flexible Architecture Enables Ease of Design and Control
- 8:4 Matrix Switch Multiplexer
- Fully Programmable with Simultaneous Updates
- Independent Control of Each Switch
- Serial Control
  - I2C with Address-Select Pin
  - SPI with DO for Daisy-Chain
  - 1.6V Logic Compatible
Low Distortion Switching Improves System Performance
- 1Ω RON (typ) with +5V or ±2.5V Supply
- 0.5Ω RON Match Between Channels (typ)
- 0.2Ω RON Flatness Over Signal Range (typ)
- Low Leakage Current: 5nA at +25°C (typ)
Integrated Protection for System Reliability
- ±30kV HBM on NO_ and COM_
- ±15kV IEC 61000-4-2 Air Gap Discharge on NO_ and COM_
- ±10kV IEC 61000-4-2 Contact Discharge on NO_ and COM_
High-Integration Multiplexing Reduces Footprint and System Complexity
- 20 WLP (2mm × 1.7mm)
- 20 TQFN (4mm × 4mm)

MAX14724: Functional Diagram

Applications/Uses

Battery-Powered Equipment
Data Acquisition
Medical Equipment
Signal Switching

DataSheet

title	Download file
MAX14724 Data Sheet	MAX14724.pdf

Parametrics

Part Number	Protocol	Config.	Channels	V_SUPPLY (Single) (V)	V_SUPPLY (Single) (V)	V_SUPPLY (Dual) (±V)	V_SUPPLY (Dual) (±V)	V_SIGNAL (V)	V_SIGNAL (V)	Dynamic Range (max) (V)	R_ON (Ω)	R_FLAT(ON) (Ω)	R_FLAT(ON) (Ω)	Bandwidth (MHz)	I_L(OFF) (nA)	t_ON (ns)	Q_INJECTION (pC)	C_ON (pF)	C_OFF (pF)	Package/Pins	Budgetary Price
Part Number	Protocol	Config.	Channels	min	max	min	max	min	max	max	max	typ	max	Bandwidth (MHz)	max	min	Q_INJECTION (pC)	C_ON (pF)	C_OFF (pF)	Package/Pins	See Notes
MAX14724	I2C	8-to-1 Crosspoint	4	1.6	5.5	1.6	2.75	-3.9	5.5	5.5	3	0.2	0.5	50	250	2000	15	125	85	TQFN-CU/20 WLP/20	$1.57 @1k

Design kits & evaluation modules

MAX14724PMB1

Quality and Environmental Data

MAX14724.pdf

Ordering Information

Part Number	Status	Package	Temp	RoHS
MAX14724ETP+	Active	TQFN-CU,;20 pin;TQFN-C;	-40°C to +85°C	Lead Free
MAX14724ETP+T	Active	TQFN-CU,;20 pin;TQFN-C;	-40°C to +85°C	Lead Free
MAX14724EWP+	Active	WLP,;20 pin;WLP;	-40°C to +85°C	See data sheet
MAX14724EWP+T	Active	WLP,;20 pin;WLP;	-40°C to +85°C	See data sheet

MAX14724.pdf MAX14724