MAX11359A_12 Datasheet, PDF (1/67 Pages) Maxim Integrated Products – 16-Bit Data-Acquisition System with ADC, DAC, UPIOs, RTC, Voltage Monitors, and Temp Sensor

MAX11359A
16-Bit Data-Acquisition System with ADC, DAC,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
General Description
The MAX11359A smart data-acquisition systems (DAS) is
based on a 16-bit, sigma-delta analog-to-digital converter
(ADC) and system-support functionality for a micro-
processor (µP)-based system. The device integrates an
ADC, DAC, operational amplifiers, internal selectable-
voltage reference, temperature sensors, analog switch-
es, a 32kHz oscillator, a real-time clock (RTC) with
alarm, a high-frequency-locked loop (FLL) clock, four
user-programmable I/Os, an interrupt generator, and
1.8V and 2.7V voltage monitors in a single chip.
The MAX11359A has dual 10:1 differential input multiplex-
ers (muxes) that accept signal levels from 0 to AVDD. An
on-chip 1x to 8x programmable-gain amplifier (PGA)
allows measuring low-level signals and reduces external
circuitry required.
The MAX11358B operates from a single +1.8V to +3.6V
supply and consumes only 1.4mA in normal mode and
only 6.1µA in sleep mode. The MAX11385B has one
DACs with two uncommitted op amp.
The serial interface is compatible with either SPI/QSPI™
or MICROWIRE^®, and is used to power up, configure,
and check the status of all functional blocks.
The MAX11359A is available in a space-saving, 40-pin
TQFN package and is specified over the commercial
(0°C to +70°C) and the extended (-40°C to +85°C) tem-
perature ranges.
Applications
Battery-Powered and Portable Devices
Electrochemical and Optical Sensors
Medical Instruments
Industrial Control
Data-Acquisition Systems
Features
o +1.8V to +3.6V Single-Supply Operation
o Multichannel 16-Bit Sigma-Delta ADC
10sps to 512sps Programmable Conversion Rate
Self and System Offset and Gain Calibration
PGA with Gains of 1, 2, 4, or 8
Unipolar and Bipolar Modes
10-Input Differential Multiplexer
o 10-Bit Force-Sense DACs
o Uncommitted Op Amps
o Dual SPDT Analog Switches
o Selectable References
1.25V, 1.996V and 2.422V
o Internal Charge Pump
o System Support
Real-Time Clock and Alarm Register
Internal/External Temperature Sensor
Internal Oscillator with Clock Output
User-Programmable I/O and Interrupt Generator
V_DD Monitors
o SPI/QSPI/MICROWIRE, 4-Wire Serial Interface
o Space-Saving (6mm x 6mm x 0.75mm), 40-Pin TQFN
Package
Ordering Information
PART
MAX11359AETL+
MAX11359ACTL+*
TEMP RANGE
-40°C to +85°C
0°C to +70°C
PIN-PACKAGE
40 TQFN-EP**
40 TQFN-EP**
+Denotes a lead(Pb)-free/RoHS–compliant package.
*Future product—contact factory for availability.
**EP = Exposed pad.
Pin Configuration
TOP VIEW
30 29 28 27 26 25 24 23 22 21
QSPI is a trademark of Motorola, Inc.
MICROWIRE is a registered trademark of National Semiconductor Corp.
AIN2 31
AIN1 32
REF 33
REG 34
CF- 35
CF+ 36
CPOUT 37
DVDD 38
DGND 39
UPIO1 40
+
MAX11359A
*EP
1 2 3 4 5 6 7 8 9 10
20 OUT1
19 SNC2
18 SCM2
17 SNO2
16 SNC1
15 SCM1
14 SNO1
13 32KIN
12 32KOUT
11 RESET
TQFN
*CONNECT EP TO AGND OR LEAVE UNCONNECTED.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-4594; Rev 1; 1/12