MAX11358B Datasheet, PDF (1/70 Pages) Maxim Integrated Products – 16-Bit Data-Acquisition System with ADC, DAC, UPIOs, RTC, Voltage Monitors, and Temp Sensor

19-5027; Rev 0; 12/09
16-Bit Data-Acquisition System with ADC, DAC,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
General Description
The MAX11358B smart data-acquisition system (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. These devices integrate
an ADC, DACs, operational amplifiers, internal selec-
table-voltage reference, temperature sensors, analog
switches, 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 MAX11358B has dual 10:1 differential input multiplex-
ers (muxes) that accept signal levels from 0 to AV_DD. 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 1.15mA in normal mode and
only 3µA in sleep mode. The MAX11358B has two
DACs with one 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 MAX11358B 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
PART
MAX11358B_ _ _
DACs
2
Selector Guide
OP
AMPs
1
SPDT/SPST
SWITCHES
2/2
Features
♦ +1.8V to +3.6V Single-Supply Operation
♦ Multichannel, 16-Bit, Sigma-Delta ADC
10sps to 477sps 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
♦ 10-Bit Force-Sense DACs
♦ Uncommitted Op Amps
♦ Dual SPDT and SPST Analog Switches
♦ Selectable References
1.25V, 2.048V, and 2.5V
♦ Internal Charge Pump
♦ System Support
RTC and Alarm Register
Internal/External Temperature Sensor
Internal Oscillator with Clock Output
User-Programmable I/O and Interrupt Generator
V_DD Monitors
♦ SPI/QSPI/MICROWIRE, 4-Wire Serial Interface
♦ Space-Saving (6mm x 6mm x 0.8mm), 40-Pin
TQFN Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX11358BCTL+
0°C to +70°C
40 TQFN-EP*
MAX11358BETL+
-40°C to +85°C
40 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Pin Configuration
TOP VIEW
30 29 28 27 26 25 24 23 22 21
AIN2 31
AIN1 32
REF 33
REG 34
CF- 35
CF+ 36
CPOUT 37
DV_DD 38
DGND 39
UPIO1 40
MAX11358B
+
*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
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
*EXPOSED PAD.
TQFN
________________________________________________________________ Maxim Integrated Products 1
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.