MAX1361, MAX1362 4-Channel, 10-Bit, System Monitors with Programmable Trip Window and SMBus Alert Response

Description

The MAX1361/MAX1362 low-power, 10-bit, 4-channel, analog-to-digital converters (ADCs) feature a digitally programmable window comparator with an interrupt output for automatic system-monitoring applications. Once configured, monitor mode automatically asserts an interrupt 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, highspeed, I²C-compatible, 2-wire, serial interface. The optimized 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 conversions 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 supply 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_DD . The MAX1361 features a 2.048V internal reference, and the MAX1362 features a 4.096V internal reference.

The MAX1361/MAX1362 are available in a 10-pin µMAX®; package and are specified over the extended (-40°C to +85°C) temperature range. For 12-bit applications, refer to the pin-compatible MAX1363/MAX1364 data sheet.

Key Features

Applications/Uses

Monitor Mode
- Programmable Lower/Upper Trip Threshold
- Alarm-Status Register Records Fault Events
- SMBus Alert Response
- Programmable Sampling Intervals
10-Bit I²C-Compatible ADC
- ±1 LSB INL, ±1 LSB DNL
4-Channel Single-Ended or 2-Channel Fully Differential Inputs
Software Programmable Bipolar/Unipolar Conversions
Fast Sampling Rate
- 94.4ksps While Continuously Reading Conversions
- 150ksps in Monitor Mode
High-Speed I²C-Compatible Serial Interface
- 100kHz/400kHz Standard/Fast Mode
- Up to 1.7MHz High-Speed Mode
- 6 Available I²C Slave Addresses
Single Supply
- 2.7V to 3.6V (MAX1361)
- 4.5V to 5.5V (MAX1362)
Internal Reference
- 2.048V (MAX1361)
- 4.096V (MAX1362)
External Reference: 1V to V_DD
Low Power
- 436µA in Monitor Mode (150ksps)
- 670µA at 94.4ksps
- 6µA at 1ksps
- 0.5µA in Power-Down Mode
Small Package
- 10-Pin µMAX

	High-Reliability Power Supplies
	Medical Instrumentation
	Servers and Workstations
	System Monitoring/Supervision

Key Specifications: Precision ADCs (< 5Msps)

Part Number

ADC Resolution (Bits)

Input Channels

Conv. Rate (ksps)

Max. Conv. Time (µs)

Data Bus (Bits)

Ref. (V)

Diff. In

Supply Voltage (V)

Typ. Supply Current (mA)

Typ. Power (mW)

Low Power Mode

Standby Mode

EV-Kit

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX1361

150

6.8

I2C Compatible
SMBus Compatible
Serial, 2-wire

Ext
Int +4.096

Yes

3
3.3

0.66

Yes

uMAX/10

-40 to +85

$2.79 @ 1k

MAX1362

$2.79 @ 1k

See All Precision ADCs (< 5Msps) (302)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Reliability Reports


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		Reliability Report: MAX1361xEUB.pdf

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Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
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Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-16 of 16

MAX1361

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1361EUB

uMAX;10 pin;

Use pkgcode/variation: U10CN-1*

-40°C to +85°C

See data sheet

MAX1361MEUB+T

-40°C to +85°C

See data sheet

MAX1361MEUB+

uMAX;10 pin;

Use pkgcode/variation: U10CN+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1361EUB+T

uMAX;10 pin;

Use pkgcode/variation: U10CN+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1361EUB+

uMAX;10 pin;

Use pkgcode/variation: U10CN+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1361MEUB

uMAX;10 pin;

Use pkgcode/variation: U10CN-1*

-40°C to +85°C

See data sheet

MAX1361MEUB-T

-40°C to +85°C

See data sheet

MAX1361EUB-T

uMAX;10 pin;

Use pkgcode/variation: U10CN-1*

-40°C to +85°C

See data sheet

MAX1362

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1362MEUB+

uMAX;10 pin;

Use pkgcode/variation: U10CN+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1362EUB+T

uMAX;10 pin;

Use pkgcode/variation: U10CN+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1362EUB+

uMAX;10 pin;

Use pkgcode/variation: U10CN+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1362EUB-T

uMAX;10 pin;

Use pkgcode/variation: U10CN-1*

-40°C to +85°C

See data sheet

MAX1362EUB

uMAX;10 pin;

Use pkgcode/variation: U10CN-1*

-40°C to +85°C

See data sheet

MAX1362MEUB-T

uMAX;10 pin;

Use pkgcode/variation: U10CN-1*

-40°C to +85°C

See data sheet

MAX1362MEUB

uMAX;10 pin;

Use pkgcode/variation: U10CN-1*

-40°C to +85°C

See data sheet

MAX1362MEUB+T

-40°C to +85°C

See data sheet