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MAX1221BETX-

Description
WiFi / 802.11 Modules WiFi Radio to PIC MCU Harmony Stack
Categorysemiconductor    Analog mixed-signal IC   
File Size546KB,44 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX1221BETX- Overview

WiFi / 802.11 Modules WiFi Radio to PIC MCU Harmony Stack

MAX1221BETX- Parametric

Parameter NameAttribute value
Product CategoryData Acquisition ADCs/DACs - Specialized
ManufacturerMaxim
RoHSDetails
ProductMultichannel ADCs/DACs
TypeMultichannel Converter
Resolution12 bit
Number of Channels8 Channel, 8 Channel
Minimum Operating Temperature- 40 C
Maximum Operating Temperature+ 85 C
Mounting StyleSMD/SMT
Package / CaseTQFN-EP-36
PackagingTube
INL - Integral Nonlinearity+/- 4 LSB
Input TypeDigital, Analog
Interface TypeSerial, SPI
Number of Converters2 Converter
Pd - Power Dissipation2.1 W
Reference Voltage2.5 V
Sampling Rate225 kS/s
Factory Pack Quantity50
Supply Voltage - Max5.25 V
Supply Voltage - Min2.7 V
19-4010; Rev 1; 12/07
KIT
ATION
EVALU
BLE
AVAILA
12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
General Description
The MAX1221/MAX1223/MAX1343 integrate a multichan-
nel, 12-bit, analog-to-digital converter (ADC) and a 12-bit,
digital-to-analog converter (DAC) in a single IC. The
devices also include a temperature sensor and config-
urable general-purpose I/O ports (GPIOs) with a 25MHz
SPI™-/QSPI™-/MICROWIRE™-compatible serial inter-
face. The ADC is available in a 12 or an eight input-chan-
nel version. The DAC outputs settle within 2.0µs, and the
ADC has a 225ksps conversion rate.
All devices include an internal reference (2.5V) providing
a well-regulated, low-noise reference for both the ADC
and DAC. Programmable reference modes for the ADC
and DAC allow the use of an internal reference, an exter-
nal reference, or a combination of both. Features such as
an internal ±1°C accurate temperature sensor, FIFO,
scan modes, programmable internal or external clock
modes, data averaging, and AutoShutdown™ allow users
to minimize both power consumption and processor
requirements. The low glitch energy (4nV
s) and low digi-
tal feedthrough (0.5nV
s) of the integrated DACs make
these devices ideal for digital control of fast-response
closed-loop systems.
The devices are guaranteed to operate with a supply volt-
age from +2.7V to +5.25V. The devices consume 2.5mA
at 225ksps throughput, only 22µA at 1ksps throughput,
and under 0.2µA in the shutdown mode. The MAX1221/
MAX1343 offer four GPIOs that can be configured as
inputs or outputs.
The MAX1221/MAX1223/MAX1343 are available in 36-pin
thin QFN packages. All devices are specified over the
-40°C to +85°C temperature range.
Features
12-Bit, 225ksps ADC
Analog Multiplexer with True-Differential
Track/Hold (T/H)
12 Single-Ended Channels or Six Differential
Channels (Unipolar or Bipolar) (MAX1223)
Eight Single-Ended Channels or Four Differential
Channels (Unipolar or Bipolar)
(MAX1221/MAX1343)
Excellent Accuracy: ±0.5 LSB INL, ±0.5 LSB DNL
12-Bit, Octal, 2µs Settling DAC
(MAX1221/MAX1223)
Ultra-Low Glitch Energy (4nV
s)
Power-Up Options from Zero Scale or Full Scale
Excellent Accuracy: ±0.5 LSB INL
Internal Reference or External Single-Ended/
Differential Reference
Internal Reference Voltage 2.5V
Internal ±1°C Accurate Temperature Sensor
On-Chip FIFO Capable of Storing 16 ADC
Conversion Results and One Temperature Result
On-Chip Channel-Scan Mode and Internal
Data-Averaging Features
Analog Single-Supply Operation
+2.7V to +5.25V
2.7V to AV
DD
Digital Supply
25MHz, SPI/QSPI/MICROWIRE Serial Interface
AutoShutdown Between Conversions
Low-Power ADC
2.5mA at 225ksps
22µA at 1ksps
0.2µA at Shutdown
Low-Power DAC: 1.5mA
Evaluation Kit Available (Order MAX1258EVKIT)
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
Pin Configurations appear at end of data sheet.
MAX1221/MAX1223/MAX1343
Applications
Closed-Loop Controls for Optical Components
and Base Stations
System Supervision and Control
Data-Acquisition Systems
Ordering Information/Selector Guide
PART
MAX1221BETX
MAX1223BETX
MAX1343BETX
PIN-PACKAGE
36 Thin QFN-EP*
36 Thin QFN-EP*
36 Thin QFN-EP*
REF
ANALOG
RESOLUTION
ADC
VOLTAGE
SUPPLY
BITS**
CHANNELS
(V)
VOLTAGE (V)
2.5
2.5
2.5
2.7 to 5.25
2.7 to 5.25
2.7 to 5.25
12
12
12
8
12
8
DAC
CHANNELS
8
8
4
GPIOs
4
0
4
PKG
CODE
T3666-3
T3666-3
T3666-3
Note:
All devices are specified over the -40°C to +85°C operating temperature range.
*EP
= Exposed pad.
**Number
of resolution bits refers to both DAC and ADC.
________________________________________________________________
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.
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