19-3338; Rev 0; 7/04
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
General Description
The MAX1363/MAX1364 low-power, 12-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 MAX1363/MAX1364 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 for
reduced monitoring rates.
In addition, the MAX1363/MAX1364 integrate an inter-
nal voltage reference, a clock, and a 1.7MHz, high-
speed, I
2
C™-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 opera-
tion 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
(MAX1363) or 4.5V to 5.5V (MAX1364) supply and
require only 436µA at the maximum sampling rate of
133ksps 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 1µA 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 MAX1363 features
a 2.048V internal reference, and the MAX1364 features
a 4.096V internal reference.
The MAX1363/MAX1364 are available in a 10-pin
µMAX
®
package and are specified over the extended
(-40°C to +85°C) temperature range. For 10-bit applica-
tions, refer to the pin-compatible MAX1361/MAX1362
data sheet.
Features
♦
Monitor Mode
Programmable Lower/Upper Trip Threshold
Alarm-Status Register Records Fault Events
SMBus Alert Response
Programmable Sampling Intervals
♦
12-Bit, I
2
C-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
133ksps in Monitor Mode
♦
High-Speed, I
2
C-Compatible Serial Interface
100kHz/400kHz Standard/Fast Mode
Up to 1.7MHz High-Speed Mode
Six Available I
2
C Slave Addresses
♦
Single Supply
2.7V to 3.6V (MAX1363)
4.5V to 5.5V (MAX1364)
♦
Internal Reference
2.048V (MAX1363)
4.096V (MAX1364)
♦
External Reference: 1V to V
DD
♦
Low Power
436µA in Monitor Mode (133ksps)
670µA at 94.4ksps
6µA at 1ksps
0.5µA in Power-Down Mode
♦
Small Package
10-Pin µMAX
SMBus is a trademark of Intel Corporation.
I
2
C is a trademark of Philips Corporation. Purchase of I
2
C compo-
nents from Maxim Integrated Products, Inc. or one of its subli-
censed Associated Companies, conveys a license under the
Philips I
2
C Patent Rights to use these components in an I
2
C sys-
tem, provided that the system conforms to the I
2
C Standard
Specification as defined by Philips.
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.
MAX1363/MAX1364
Applications
System Monitoring/Supervision
Servers/Workstations
High-Reliability Power Supplies
Medical Instrumentation
Ordering Information/Selector Guide
PART
MAX1363EUB
MAX1363LEUB*
MAX1363MEUB*
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
10 µMAX
I
2
C SLAVE ADDRESS
0110100/0110101
0110010/0110011
SUPPLY VOLTAGE (V)
2.7 to 3.6
2.7 to 3.6
*Future
product—contact factory for availability.
10 µMAX
0110110/0110111
2.7 to 3.6
Ordering Information/Selector Guide continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
MAX1363/MAX1364
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND ..............................................................-0.3V to +6V
AIN0–AIN3, A0, REF to GND......................-0.3V to (V
DD
+ 0.3V)
SDA, SCL,
INT
to GND .............................................-0.3V to +6V
Maximum Current Into Any Pin .........................................±50mA
Continuous Power Dissipation (T
A
= +70°C)
10-Pin µMAX (derate 5.6mW/°C above +70°C) ........444.4mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
DD
= 2.7V to 3.6V (MAX1363), V
DD
= 4.5V to 5.5V (MAX1364), V
REF
= 2.048V (MAX1363), V
REF
= 4.096V (MAX1364), C
REF
=
0.1µF, f
SCL
= 1.7MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Resolution
Relative Accuracy
Differential Nonlinearity
Offset Error
Offset-Error Temperature
Coefficient
Gain Error
Gain Temperature Coefficient
Channel-to-Channel Offset
Matching
Channel-to-Channel Gain
Matching
DYNAMIC PERFORMANCE (f
IN(SINE-WAVE)
= 10kHz, V
IN(P-P)
= V
REF,
f
SAMPLE
= 94.4ksps)
Signal-to-Noise Plus Distortion
Total Harmonic Distortion
Spurious-Free Dynamic Range
Full-Power Bandwidth
Full-Linear Bandwidth
CONVERSION RATE
Conversion Time (Note 4)
t
CONV
Internal clock
External clock
Internal clock, SCAN[1:0] = 01
Throughput Rate (Note 5)
f
SAMPLE
External clock
Monitor mode, SCAN[1:0] = 10
10.6
51
94.4
133
ksps
7.5
µs
SINAD
THD
SFDR
SINAD > 57dB
-3dB point
Up to the 5th harmonic
70
-78
78
3.0
5.0
dB
dB
dB
MHz
MHz
Relative to FSR
(Note 3)
Relative to FSR
0.3
±0.1
±0.1
0.3
±4
INL
DNL
(Note 2)
No missing codes
SYMBOL
CONDITIONS
MIN
12
±1
±1
±4
TYP
MAX
UNITS
Bits
LSB
LSB
LSB
ppm/°C
LSB
ppm/°C
LSB
LSB
DC ACCURACY (f
SAMPLE
= 94.4ksps) (Note 1)
2
_______________________________________________________________________________________
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V to 3.6V (MAX1363), V
DD
= 4.5V to 5.5V (MAX1364), V
REF
= 2.048V (MAX1363), V
REF
= 4.096V (MAX1364), C
REF
=
0.1µF, f
SCL
= 1.7MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Track/Hold Acquisition Time
Internal Clock Frequency
Aperture Delay (Note 6)
ANALOG INPUT (AIN0–AIN3)
Input Voltage Range, Single
Ended and Differential (Note 7)
Input Multiplexer Leakage
Current
Input Capacitance
INTERNAL REFERENCE (Note 8)
Reference Voltage
Reference-Voltage Temperature
Coefficient
REF Short-Circuit Current
REF Source Impedance
EXTERNAL REFERENCE
REF Input Voltage Range
REF Input Current
Input High Voltage
Input Low Voltage
Input Hysteresis
Input Current
Input Capacitance
Output Low Voltage
INT
OUTPUT
Output Low Voltage
INT
Leakage Current
Output Capacitance
POWER REQUIREMENTS
Supply Voltage
V
DD
MAX1363
MAX1364
2.7
4.5
3.6
5.5
V
I
SINK
= 3mA
No faults detected
15
0.4
±10
V
µA
pF
V
REF
I
REF
V
IH
V
IL
V
HYST
I
IN
C
IN
V
OL
I
SINK
= 3mA
15
0.4
0.1 x V
DD
±10
(Note 9)
f
SAMPLE
= 94.4ksps
0.7 x V
DD
0.3 x V
DD
1
V
DD
40
V
µA
V
V
V
µA
pF
V
1.5
V
REF
TCV
REF
T
A
= +25°C
MAX1363
MAX1364
2.027
4.055
2.048
4.096
25
2
2.068
4.137
V
ppm/°C
mA
kΩ
Unipolar
Bipolar
ON/OFF-leakage current, V
AIN_
= 0 or V
DD
C
IN
0
-V
REF
/ 2
±0.01
22
V
REF
+V
REF
/ 2
±1
V
µA
pF
t
AD
External clock, fast mode
External clock, high-speed mode
SYMBOL
CONDITIONS
MIN
800
2.8
60
30
TYP
MAX
UNITS
ns
MHz
ns
MAX1363/MAX1364
DIGITAL INPUTS/OUTPUTS (SCL, SDA, A
0
)
_______________________________________________________________________________________
3
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
MAX1363/MAX1364
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V to 3.6V (MAX1363), V
DD
= 4.5V to 5.5V (MAX1364), V
REF
= 2.048V (MAX1363), V
REF
= 4.096V (MAX1364), C
REF
=
0.1µF, f
SCL
= 1.7MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
f
SAMPLE
=
Internal reference
133ksps,
monitor mode
External reference
(Note 10)
f
SAMPLE
=
Internal reference
94.4ksps,
external clock External reference
MAX1363 f
SAMPLE
=
40ksps,
internal clock
f
SAMPLE
=
10ksps,
internal clock
f
SAMPLE
=
1ksps,
internal clock
Internal reference
External reference
Internal reference
External reference
Internal reference
External reference
MIN
TYP
660
436
900
670
530
230
380
60
330
6
µA
660
436
900
670
530
230
380
60
330
6
333
0.5
±0.01
10
±0.5
400
1.3
µA
LSB/V
kHz
µs
1600
1350
1150
900
MAX
1600
1350
1150
900
UNITS
Supply Current
I
DD
f
SAMPLE
=
Internal reference
133ksps,
monitor mode
External reference
(Note10)
f
SAMPLE
=
Internal reference
94.4ksps,
external clock External reference
f
SAMPLE
=
MAX1364 40ksps,
internal clock
f
SAMPLE
=
10ksps,
internal clock
Internal reference
External reference
Internal reference
External reference
f
SAMPLE
=
Internal reference
1ksps, internal
External reference
clock
Shutdown Current
Power-Supply Rejection Ratio
Serial Clock Frequency
Bus Free Time Between a
STOP (P) and a
START (S) Condition
PSRR
f
SCL
t
BUF
Internal reference on
Internal reference off
Full-scale input (Note 11)
TIMING CHARACTERISTICS FOR FAST MODE (Figures 1a, 2)
4
_______________________________________________________________________________________
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
MAX1363/MAX1364
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V to 3.6V (MAX1363), V
DD
= 4.5V to 5.5V (MAX1364), V
REF
= 2.048V (MAX1363), V
REF
= 4.096V (MAX1364), C
REF
=
0.1µF, f
SCL
= 1.7MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Hold Time for START (S)
Condition
Low Period of the SCL Clock
High Period of the SCL Clock
Setup Time for a Repeated
START Condition (Sr)
Data Hold Time
Data Setup Time
Rise Time of Both SDA and SCL
Signals, Receiving
Fall Time of SDA Transmitting
Setup Time for STOP (P)
Condition
Capacitive Load for Each Bus
Line
Pulse Width of Spike Suppressed
TIMING CHARACTERISTICS FOR HIGH-SPEED MODE (C
B
= 400pF, Figures 1a, 2) (Note 12)
Serial Clock Frequency
Hold Time, Repeated START
Condition (Sr)
Low Period of the SCL Clock
High Period of the SCL Clock
Setup Time for a Repeated
START Condition (Sr)
Data Hold Time
Data Setup Time
Rise Time of SCL Signal, Current
Source Enabled
Rise Time of SCL Signal After
Acknowledge Bit
Fall Time of SCL Signal
Rise Time of SDA Signal
Fall Time of SDA Signal
Setup Time for STOP (P)
Condition
Capacitive Load for Each Bus
Line
Pulse Width of Spike Suppressed
f
SCLH
t
HD, STA
t
LOW
t
HIGH
t
SU, STA
t
HD, DAT
t
SU, DAT
t
RCL
t
RCL1
t
FCL
t
RDA
t
FDA
t
SU, STO
C
B
(Notes 13, 14)
0
Measured from 0.3V
DD
to 0.7V
DD
Measured from 0.3V
DD
to 0.7V
DD
Measured from 0.3V
DD
to 0.7V
DD
Measured from 0.3V
DD
to 0.7V
DD
Measured from 0.3V
DD
to 0.7V
DD
(Note 14)
(Note 13)
(Note 13)
160
320
120
160
0
10
20
20
20
20
20
160
400
10
80
160
80
160
160
150
1.7
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
ns
SYMBOL
t
HD, STA
t
LOW
t
HIGH
t
SU, STA
t
HD, DAT
t
SU, DAT
t
R
t
F
t
SU, STO
C
B
Measured from 0.3V
DD
to 0.7V
DD
Measured from 0.3V
DD
to 0.7V
DD
CONDITIONS
MIN
0.6
1.3
0.6
0.6
0
100
0
0
0.6
400
50
300
300
900
TYP
MAX
UNITS
µs
µs
µs
µs
ns
ns
ns
ns
µs
pF
ns
_______________________________________________________________________________________
5
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