MAX1362EUB-T Maxim Integrated, MAX1362EUB-T Datasheet

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MAX1362EUB-T

Manufacturer Part Number
MAX1362EUB-T
Description
Analog to Digital Converters - ADC
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX1362EUB-T

Number Of Channels
4/2
Architecture
SAR
Conversion Rate
150 KSPs
Resolution
10 bit
Input Type
Single-Ended/Differential
Snr
Yes
Interface Type
I2C, Serial
Operating Supply Voltage
4.5 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
uMAX
Maximum Power Dissipation
689.7 mW
Minimum Operating Temperature
- 40 C
Number Of Converters
1
Voltage Reference
4.096 V
The MAX1361/MAX1362 low-power, 10-bit, 4-channel,
analog-to-digital converters (ADCs) feature a digitally
programmable window comparator with an interrupt out-
put for automatic system-monitoring applications. Once
configured, monitor mode automatically asserts an inter-
rupt when any analog input exceeds the programmed
upper or lower thresholds, without interaction to the
host. The MAX1361/MAX1362 respond to the SMBus™
alert, allowing quick identification of the alarming device
on a shared interrupt. A programmable delay between
monitoring intervals lowers power consumption at
reduced monitoring rates.
In addition, the MAX1361/MAX1362 integrate an internal
voltage reference, a clock, and a 1.7MHz, high-speed,
I
interface allows a maximum conversion rate of 94.4ksps
in normal mode while reading back the conversion
results. Each of the four analog inputs is configurable for
single-ended or fully differential operation and unipolar
or bipolar operation. Two scan modes utilize on-chip
random access memory (RAM) to allow eight conver-
sions of a selected channel or scanning of a group of
channels to reduce interface overhead.
These devices operate from a single 2.7V to 3.6V
(MAX1361) or 4.5V to 5.5V (MAX1362) supply and
require only 436µA at the maximum sampling rate of
150ksps in monitor mode and 670µA at the maximum
sampling rate of 94.4ksps. AutoShutdown™ powers
down the devices between conversions, reducing sup-
ply current to less than 0.5µA when idle.
The full-scale analog-input range is determined by the
internal reference or by an externally applied reference
voltage ranging from 1V to V
a 2.048V internal reference, and the MAX1362 features
a 4.096V internal reference.
The MAX1361/MAX1362 are available in a 10-pin
µMAX
-40°C to +85°C temperature range. For 12-bit applica-
tions, refer to the pin-compatible MAX1363/MAX1364
data sheet.
19-3268; Rev 5; 9/10
4-Channel, 10-Bit, System Monitors with Programmable
+ Denotes a lead(Pb)-free/RoHS-compliant package.
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.
2
MAX1361EUB+
MAX1361MEUB+
C-compatible, 2-wire, serial interface. The optimized
®
System Monitoring/Supervision
Servers/Workstations
High Reliability Power Supplies
Medical Instrumentation
PART
package and are specified over the extended
________________________________________________________________ Maxim Integrated Products
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
General Description
DD
. The MAX1361 features
Trip Window and SMBus Alert Response
Applications
PIN-PACKAGE
10 μMAX
10 μMAX
Ordering Information/Selector Guide continued at end of data sheet.
Ordering Information/Selector Guide
♦ Monitor Mode
♦ 10-Bit I
♦ 4-Channel Single-Ended or 2-Channel Fully
♦ Software Programmable Bipolar/Unipolar
♦ Fast Sampling Rate
♦ High-Speed I
♦ Single Supply
♦ Internal Reference
♦ External Reference: 1V to V
♦ Low Power
♦ Small Package
SMBus is a trademark of Intel Corporation.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Typical Operating Circuit and Pin Configuration appear at
end of data sheet.
Differential Inputs
Conversions
Programmable Lower/Upper Trip Threshold
Alarm-Status Register Records Fault Events
SMBus Alert Response
Programmable Sampling Intervals
±1 LSB INL, ±1 LSB DNL
94.4ksps While Continuously Reading
Conversions
150ksps in Monitor Mode
100kHz/400kHz Standard/Fast Mode
Up to 1.7MHz High-Speed Mode
4 Available I
2.7V to 3.6V (MAX1361)
4.5V to 5.5V (MAX1362)
2.048V (MAX1361)
4.096V (MAX1362)
436µA in Monitor Mode (150ksps)
670µA at 94.4ksps
6µA at 1ksps
0.5µA in Power-Down Mode
10-Pin µMAX
I
2
C SLAVE ADDRESS
0110100/0110101
0110110/0110111
2
C-Compatible ADC
2
C-Compatible Serial Interface
2
C Slave Addresses
DD
SUPPLY VOLTAGE (V)
2.7 to 3.6
2.7 to 3.6
Features
1

Related parts for MAX1362EUB-T

MAX1362EUB-T Summary of contents

Page 1

... Power-Down Mode ♦ Small Package 10-Pin µMAX SMBus is a trademark of Intel Corporation. AutoShutdown is a trademark of Maxim Integrated Products, Inc. µMAX is a registered trademark of Maxim Integrated Products, Inc. Typical Operating Circuit and Pin Configuration appear at end of data sheet. Ordering Information/Selector Guide 2 ...

Page 2

System Monitor with Programmable Trip Window and SMBus Alert Response ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD AIN0–AIN3, A0, REF to GND......................-0. SDA, SCL, INT to GND .............................................-0.3V to +6V Maximum Current Into ...

Page 3

System Monitor with Programmable Trip Window and SMBus Alert Response ELECTRICAL CHARACTERISTICS (continued 2.7V to 3.6V (MAX1361 0.1µ 1.7MHz SCL A MIN MAX PARAMETER SYMBOL Track/Hold ...

Page 4

System Monitor with Programmable Trip Window and SMBus Alert Response ELECTRICAL CHARACTERISTICS (continued 2.7V to 3.6V (MAX1361 0.1µ 1.7MHz SCL A MIN MAX PARAMETER SYMBOL Supply ...

Page 5

System Monitor with Programmable Trip Window and SMBus Alert Response ELECTRICAL CHARACTERISTICS (continued 2.7V to 3.6V (MAX1361 0.1µ 1.7MHz SCL A MIN MAX PARAMETER SYMBOL TIMING ...

Page 6

System Monitor with Programmable Trip Window and SMBus Alert Response ELECTRICAL CHARACTERISTICS (continued 2.7V to 3.6V (MAX1361 0.1µ 1.7MHz SCL A MIN MAX Note 1: Devices ...

Page 7

System Monitor with Programmable Trip Window and SMBus Alert Response (V = 3.3V (MAX1361 (MAX1362 +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. TEMPERATURE 800 750 MAX1362 INTERNAL REFERENCE 700 ...

Page 8

System Monitor with Programmable Trip Window and SMBus Alert Response (V = 3.3V (MAX1361 (MAX1362 +25°C, unless otherwise noted.) A GAIN ERROR vs. SUPPLY VOLTAGE 1.0 0.9 0.8 0.7 0.6 ...

Page 9

System Monitor with Programmable Trip Window and SMBus Alert Response SDA t SU.DAT t LOW SCL t t SU.STA HIGH Figure 1a. F/S-Mode 2-Wire Serial-Interface Timing SDA t SU.DAT t LOW 1 SCL ...

Page 10

System Monitor with Programmable Trip Window and SMBus Alert Response The MAX1361 (2.7V to 3.6V) and MAX1362 (4.5V to 5.5V) operate from a single supply and consume 670µA (typ) at sampling rates up to 94.4ksps and 436µA in ...

Page 11

System Monitor with Programmable Trip Window and SMBus Alert Response where R is the analog-input source impedance, SOURCE R = 2.5kΩ, and C = 22pF. For internal clock mode 1.5/f , and for external ...

Page 12

System Monitor with Programmable Trip Window and SMBus Alert Response be addressed with a read command to obtain new con- version results. See the Configuration/Setup Bytes (Write Cycle) section. When configured for external clock mode (INT/EXT = 1), ...

Page 13

System Monitor with Programmable Trip Window and SMBus Alert Response S 0 SDA SCL 1 Figure 6. MAX1361/MAX1362 Slave Address Byte 2 Table Slave Selection Table A0 STATE SUFFIX Low EUB High EUB Low MEUB ...

Page 14

System Monitor with Programmable Trip Window and SMBus Alert Response START CONDITION ADDRESS START FROM THE MASTER Figure 8. Example of Writing Setup and Control Bytes START R/W BIT FROM CONDITION THE MASTER ADDRESS START FROM THE MASTER ...

Page 15

System Monitor with Programmable Trip Window and SMBus Alert Response Software Description Configuration/Setup Bytes (Write Cycle) A write cycle begins with the bus master issuing a START condition followed by 7 address bits and a write bit (R/W ...

Page 16

System Monitor with Programmable Trip Window and SMBus Alert Response Table 4. Setup-Byte Format* BIT NAME 7 (MSB) Setup Setup byte always starts with 1. When [0,0], REF/AIN3 = AIN3, REF = V 6 REF/AIN SEL1 When [0,1], ...

Page 17

System Monitor with Programmable Trip Window and SMBus Alert Response Table 8. Data Format 12 HIGH CH1 CH0 HIGH HIGH 0 = 10b 1 0/1 0 12b START ...

Page 18

System Monitor with Programmable Trip Window and SMBus Alert Response ADDRESS START FROM THE MASTER 1, CH ADD, 10b/12b, 1,1 RESULT (2 MSBs) t ACQ Figure 13. Example of Scan-Mode Conversions Using the External Clock, SCAN = 0,0 ...

Page 19

System Monitor with Programmable Trip Window and SMBus Alert Response Table 9. Monitor-Mode Setup Data Format Alarm reset, scan AIN0 thresholds speed, INT_EN , (24 bits) (8 bits) Table 10. Alarm Reset, Scan Speed Register, and INT_EN Data ...

Page 20

System Monitor with Programmable Trip Window and SMBus Alert Response Table 13. Readback-Mode Format SCAN SPEED AND INT_EN THRESHOLDS INT_EN Table 14. Reading in Monitor-Mode Data Format ALARM-STATUS REGISTER 16, 32, ...

Page 21

System Monitor with Programmable Trip Window and SMBus Alert Response Reset alarms by writing to monitor-setup data. See the Configuring Monitor Mode section and Table 10. The SMBus-alert feature provides a quick method to identify alarming devices on ...

Page 22

System Monitor with Programmable Trip Window and SMBus Alert Response SUPPLIES 4.7μ 5Ω 0.1μF V GND DD MAX1361 MAX1362 *OPTIONAL Figure 16. Power-Supply Grounding Connection MAX1361/MAX1362’s INL is measured using the end- point ...

Page 23

... System Monitor with Programmable Trip Window and SMBus Alert Response PART TEMP RANGE MAX1362EUB+ -40°C to +85°C MAX1362MEUB+ -40°C to +85°C + Denotes a lead(Pb)-free/RoHS-compliant package. Typical Operating Circuit 3V/5V 0.1μ AIN0 AIN1 MAX1361 ANALOG MAX1362 INPUTS 2kΩ AIN3/REF GND C 0.1μ ...

Page 24

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 24 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products ...

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