MAX11811 Maxim Integrated Products, MAX11811 Datasheet
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MAX11811
Manufacturer Part Number
MAX11811
Description
(MAX11810 / MAX11811) Advanced Touch Interface Solution
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX11811.pdf
(3 pages)
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MAX11811ETP+
Manufacturer:
Maxim
Quantity:
393
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XX-XXXX; Rev 0; 7/09
Advanced Touch Interface Solution with Haptic
The MAX11810/MAX11811 low-power touch interface
solutions operate from a single supply of 1.7V to 3.6V,
targeting power-sensitive applications such as handheld
equipment. The MAX11810/MAX11811 include a 4-wire
resistive touch-screen controller, a haptic motor control-
ler plus driver, and IR proximity-sensing system.
The devices contain a 12-bit SAR ADC and a multiplexer
to interface with a 4-wire resistive touch-screen panel. A
digital serial interface provides communications.
The MAX11810/MAX11811 contain an advanced state
machine, which performs digital preprocessing of the
touch-screen measurements, reducing bus loading
and application-processor resource requirements. The
MAX11810/MAX11811 enter low-power modes automati-
cally between conversions to save power, making them
ideal for
interrupt generation engine, which enables servicing the
part only when needed. The register map is compatible
with that of the MAX11800/MAX11801.
In addition, the MAX11810/MAX11811 have a built-in hap-
tic controller plus driver to either drive a vibration motor
directly, or to interface with an external piezo driver. The
built-in haptic waveform generator generates > 50,000
haptic patterns, which are configured through the serial
interface. This eliminates the need for a dedicated inter-
face on the applications processor/microcontroller end.
They also contain a general-purpose current DAC output
and voltage input. The DAC output can drive IR and vis-
ible LEDs; the input can connect to either a photo-detec-
tor for proximity sensing, or an ambient light sensor.
.
SPI is a trademark of Motorola, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Mobile Communication Devices
PDA, GPS, Media Players,
Devices
POS Terminals and Financial Terminals
Automotive Center Consoles
Handheld Games
Controller plus Driver and Proximity Sensing
portable
_______________________________________________________________ Maxim Integrated Products 1
applications. Also included is a smart
General Description
Portable
Applications
Navigation
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
+Denotes a lead(Pb)-free/RoHs-compliant package.
*Future product––contact factory for availability.
**EP = Exposed pad.
S 4-Wire Resistive Touch-Screen Interface
S X and Y Coordinate and Touch Pressure
S Ratiometric Measurement
S 12-Bit SAR ADC
S Single 1.7V to 3.6V Supply
S Integrated Haptic Controller Driver for ERM and
S Integrated Proximity Sensing System
S General-Purpose Current DAC Output and
S PWM Output for Piezo Drivers
S Data Tagging Provides Measurement and Touch
S Data Filtering Provides Noise Reduction
S Aperture Mode Provides Spatial Filtering
S Digital Preprocessing Reduces Serial Bus Activity
S Programmable Touch Detect Pullup Resistor
S Auto Power-Down Control for Ultra-Low-Power
S 25MHz SPI Interface (MAX11810)
S 400kHz I
S 2.1mm x 2.1mm, 16-Pin WLP and 4mm x 4mm,
S Low-Power Operation
MAX11810ETP+*
MAX11810EWE+*
MAX11811ETP+*
MAX11811EWE+*
Measurement
LRA Motors
General-Purpose Input
Event Information
and Interrupt Generation
Operation
20-Pin TQFN Packages
246µW at V
698µW at V
PART
2
C Interface (MAX11811)
DD
DD
= 1.8V, 34.4ksps
= 3.6V, 34.4ksps
Ordering Information
PIN-PACKAGE
20 TQFN-EP**
16 WLP
20 TQFN-EP**
16 WLP
Features
INTERFACE
SERIAL
I 2 C
SPI
SPI
I
2
C