MAXIM MAX1363, MAX1364 Technical data
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 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 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 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
(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 supply 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 VDD. 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 applications, refer to the pin-compatible MAX1361/MAX1362
data sheet.
Applications
System Monitoring/Supervision
Servers/Workstations
High-Reliability Power Supplies
Medical Instrumentation
Features
♦ Monitor Mode
Programmable Lower/Upper Trip Threshold
Alarm-Status Register Records Fault Events
SMBus Alert Response
Programmable Sampling Intervals
♦ 12-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
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 I2C 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
MAX1363/MAX1364
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
________________________________________________________________ Maxim Integrated Products 1
Ordering Information/Selector Guide
19-3338; Rev 0; 7/04
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.
SMBus is a trademark of Intel Corporation.
I
2
C is a trademark of Philips Corporation. Purchase of I2C components from Maxim Integrated Products, Inc. or one of its sublicensed Associated Companies, conveys a license under the
Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C 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.
Ordering Information/Selector Guide continued at end of data sheet.
*Future product—contact factory for availability.
查询MAX1363供应商
PART TEMP RANGE PIN-PACKAGE I2C SLAVE ADDRESS SUPPLY VOLTAGE (V)
MAX1363EUB -40°C to +85°C 10 µMAX 0110100/0110101 2.7 to 3.6
MAX1363LEUB* -40°C to +85°C 10 µMAX 0110010/0110011 2.7 to 3.6
MAX1363MEUB* -40°C to +85°C 10 µMAX 0110110/0110111 2.7 to 3.6
MAX1363/MAX1364
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD= 2.7V to 3.6V (MAX1363), VDD= 4.5V to 5.5V (MAX1364), V
REF
= 2.048V (MAX1363), V
REF
= 4.096V (MAX1364), C
REF
=
0.1µF, f
SCL
= 1.7MHz, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°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.
VDDto 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
DC ACCURACY (f
Resolution 12 Bits
Relative Accuracy INL (Note 2) ±1 LSB
Differential Nonlinearity DNL No missing codes ±1 LSB
Offset Error ±4 LSB
Offset-Error Temperature
Coefficient
Gain Error (Note 3) ±4 LSB
Gain Temperature Coefficient Relative to FSR 0.3 ppm/°C
Channel-to-Channel Offset
Matching
Channel-to-Channel Gain
Matching
DYNAMIC PERFORMANCE (f
Signal-to-Noise Plus Distortion SINAD 70 dB
Total Harmonic Distortion THD Up to the 5th harmonic -78 dB
Spurious-Free Dynamic Range SFDR 78 dB
Full-Power Bandwidth SINAD > 57dB 3.0 MHz
Full-Linear Bandwidth -3dB point 5.0 MHz
CONVERSION RATE
Conversion Time (Note 4) t
Throughput Rate (Note 5) f
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SAMPLE
= 94.4ksps) (Note 1)
IN(SINE-WAVE)
= 10kHz, V
CONV
SAMPLE
Relative to FSR 0.3 ppm/°C
IN(P-P)
Internal clock 7.5
External clock 10.6
Internal clock, SCAN[1:0] = 01 51
External clock 94.4
Monitor mode, SCAN[1:0] = 10 133
= V
REF
, f
SAMPLE
= 94.4ksps)
±0.1 LSB
±0.1 LSB
µs
ksps
MAX1363/MAX1364
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(VDD= 2.7V to 3.6V (MAX1363), VDD= 4.5V to 5.5V (MAX1364), V
REF
= 2.048V (MAX1363), V
REF
= 4.096V (MAX1364), C
REF
=
0.1µF, f
SCL
= 1.7MHz, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Track/Hold Acquisition Time 800 ns
Internal Clock Frequency 2.8 MHz
Aperture Delay (Note 6) t
AD
External clock, fast mode 60
External clock, high-speed mode 30
ANALOG INPUT (AIN0–AIN3)
Input Voltage Range, Single
Ended and Differential (Note 7)
Input Multiplexer Leakage
Current
Input Capacitance C
Unipolar 0 V
Bipolar -V
ON/OFF-leakage current, V
IN
INTERNAL REFERENCE (Note 8)
Reference Voltage V
Reference-Voltage Temperature
Coefficient
TCV
REF
TA = +25°C
REF
REF Short-Circuit Current 2mA
REF Source Impedance 1.5 kΩ
EXTERNAL REFERENCE
REF Input Voltage Range V
REF Input Current I
REF
REF
(Note 9) 1 V
f
= 94.4ksps 40 µA
SAMPLE
DIGITAL INPUTS/OUTPUTS (SCL, SDA, A0)
Input High Voltage V
Input Low Voltage V
Input Hysteresis V
Input Current I
Input Capacitance C
Output Low Voltage V
IH
IL
HYST
IN
IN
OL
I
= 3mA 0.4 V
SINK
INT OUTPUT
Output Low Voltage I
= 3mA 0.4 V
SINK
INT Leakage Current No faults detected ±10 µA
Output Capacitance 15 pF
POWER REQUIREMENTS
Supply Voltage V
DD
MAX1363 2.7 3.6
MAX1364 4.5 5.5
= 0 or V
AIN_
DD
/ 2 +V
REF
REF
±0.01 ±1 µA
REF
22 pF
MAX1363 2.027 2.048 2.068
MAX1364 4.055 4.096 4.137
25 ppm/°C
DD
0.7 x V
DD
0.3 x V
0.1 x V
DD
±10 µA
15 pF
/ 2
DD
ns
V
V
V
V
V
V
V
MAX1363/MAX1364
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(VDD= 2.7V to 3.6V (MAX1363), VDD= 4.5V to 5.5V (MAX1364), V
REF
= 2.048V (MAX1363), V
REF
= 4.096V (MAX1364), C
REF
=
0.1µF, f
SCL
= 1.7MHz, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.)
Supply Current I
Shutdown Current
Power-Supply Rejection Ratio PSRR Full-scale input (Note 11) ±0.01 ±0.5 LSB/V
TIMING CHARACTERISTICS FOR FAST MODE (Figures 1a, 2)
Serial Clock Frequency f
Bus Free Time Between a
STOP (P) and a
START (S) Condition
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
f
SAMPLE
133ksps,
monitor mode
(Note 10)
f
SAMPLE
94.4ksps,
external clock
f
SAMPLE
40ksps,
internal clock
f
SAMPLE
10ksps,
internal clock
f
SAMPLE
1ksps,
internal clock
f
SAMPLE
133ksps,
monitor mode
(Note10)
f
SAMPLE
94.4ksps,
external clock
f
SAMPLE
40ksps,
internal clock
f
SAMPLE
10ksps,
internal clock
f
SAMPLE
1ksps, internal
clock
SCL
t
BUF
MAX1363
DD
MAX1364
Internal reference on 333
Internal reference off 0.5 10
=
Internal reference 660 1600
External reference 436 1350
=
Internal reference 900 1150
External reference 670 900
=
Internal reference 530
External reference 230
=
Internal reference 380
External reference 60
=
Internal reference 330
External reference 6
=
Internal reference 660 1600
External reference 436 1350
=
Internal reference 900 1150
External reference 670 900
=
Internal reference 530
External reference 230
=
Internal reference 380
External reference 60
=
Internal reference 330
External reference 6
1.3 µs
400 kHz
µA
µA
MAX1363/MAX1364
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(VDD= 2.7V to 3.6V (MAX1363), VDD= 4.5V to 5.5V (MAX1364), V
REF
= 2.048V (MAX1363), V
REF
= 4.096V (MAX1364), C
REF
=
0.1µF, f
SCL
= 1.7MHz, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Hold Time for START (S)
Condition
Low Period of the SCL Clock t
High Period of the SCL Clock t
Setup Time for a Repeated
START Condition (Sr)
Data Hold Time t
Data Setup Time t
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
t
HD, STA
LOW
HIGH
t
SU, STA
HD, DAT
SU, DAT
t
t
t
SU, STO
C
Measured from 0.3VDD to 0.7V
R
Measured from 0.3VDD to 0.7V
F
B
Pulse Width of Spike Suppressed 50 ns
TIMING CHARACTERISTICS FOR HIGH-SPEED MODE (CB = 400pF, Figures 1a, 2) (Note 12)
Serial Clock Frequency f
Hold Time, Repeated START
Condition (Sr)
t
Low Period of the SCL Clock t
High Period of the SCL Clock t
Setup Time for a Repeated
START Condition (Sr)
t
Data Hold Time t
Data Setup Time t
Rise Time of SCL Signal, Current
Source Enabled
Rise Time of SCL Signal After
Acknowledge Bit
Fall Time of SCL Signal t
Rise Time of SDA Signal t
Fall Time of SDA Signal t
Setup Time for STOP (P)
Condition
t
Capacitive Load for Each Bus
Line
SCLH
HD, STA
LOW
HIGH
SU, STA
HD, DAT
SU, DAT
t
RCL
t
RCL1
FCL
RDA
FDA
SU, STO
C
(Note 13) 1.7 MHz
(Note 13) 320 ns
(Note 14) 0 150 ns
Measured from 0.3VDD to 0.7V
Measured from 0.3VDD to 0.7V
Measured from 0.3VDD to 0.7V
Measured from 0.3VDD to 0.7V
Measured from 0.3VDD to 0.7V
(Notes 13, 14) 400 pF
B
Pulse Width of Spike Suppressed 0 10 ns
DD
DD 0
DD
DD
DD
DD
DD
0.6 µs
1.3 µs
0.6 µs
0.6 µs
0 900 ns
100 ns
0 300 ns
300 ns
0.6 µs
400 pF
160 ns
120 ns
160 ns
10 ns
20 80 ns
20 160 ns
20 80 ns
20 160 ns
20 160 ns
160 ns
Typical Operating Characteristics
(VDD= 3.3V (MAX1363), VDD= 5V (MAX1364), f
SCL
= 1.7MHz, external clock, f
SAMPLE
= 94.4ksps, single-ended, unipolar,
T
A
= +25°C, unless otherwise noted.)
MAX1363/MAX1364
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
6 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(VDD= 2.7V to 3.6V (MAX1363), VDD= 4.5V to 5.5V (MAX1364), V
REF
= 2.048V (MAX1363), V
REF
= 4.096V (MAX1364), C
REF
=
0.1µF, f
SCL
= 1.7MHz, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.)
Note 1: Devices configured for unipolar single-ended inputs.
Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the gain and offset have
been calibrated.
Note 3: Offset nulled.
Note 4: Conversion time is defined as the number of clock cycles needed for conversion multiplied by the clock period.
Conversion time does not include acquisition time. SCL is the conversion clock in the external clock mode.
Note 5: The throughput rate of the I
2
C bus is limited to 94.4ksps. The MAX1363/MAX1364 can perform conversions up to 133ksps
in monitor mode when not reading back results on the I
2
C bus.
Note 6: A filter on the SDA and SCL inputs suppresses noise spikes and delays the sampling instant.
Note 7: The absolute input-voltage range for the analog inputs (AIN0–AIN3) is from GND to V
DD
.
Note 8: When the internal reference is configured to be available at AIN3/REF (SEL[2:1] = 11), decouple AIN3/REF to GND with a
0.01µF capacitor.
Note 9: ADC performance is limited by the converter’s noise floor, typically 300µV
P-P
.
Note 10: Maximum conversion throughput in internal clock mode when the data is not clocked out.
Note 11: For the MAX1363, PSRR is measured as
and for the MAX1364, PSRR is measured as
Note 12: C
B
= total capacitance of one bus line in pF.
Note 13: f
SCLH
must meet the minimum clock low time plus the rise/fall times.
Note 14: A master device must provide a data hold time for SDA (referred to V
IL
of SCL) to bridge the undefined region of SCL’s
falling edge.
(
)
VVVV
(. ) (. )
36 27
FS FS
[]
−
VV
(. . )
36 27
−
N
21
−
×
V
REF
VVVV
(. ) (. )
55 45
FS FS
[]
−
VV
..
55 45
−
×
N
21
−
V
REF
DNL (LSB)
-0.1
-0.2
-0.3
-0.4
-0.5
DIFFERENTIAL NONLINEARITY
vs. DIGITAL CODE
0.5
0.4
0.3
0.2
0.1
0
1000 1500500
0 4000
2000 2500
DIGITAL OUTPUT CODE
3000 3500
MAX1363/64 toc01
1.0
0.8
0.6
0.4
0.2
INL (LSB)
-0.2
-0.4
-0.6
-0.8
-1.0
INTEGRAL NONLINEARITY
vs. DIGITAL CODE
0
1000 1500500
0 4000
2000 2500
DIGITAL OUTPUT CODE
3000 3500
MAX1363/64 toc02
FFT PLOT
-60
f
= 94.4ksps
SAMPLE
= 10kHz
f
IN
-80
-100
-120
AMPLITUDE (dBc)
-140
-160
-180
01020304050
FREQUENCY (kHz)
MAX1363/64 toc03
MAX1363/MAX1364
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
_______________________________________________________________________________________ 7
Typical Operating Characteristics (continued)
(VDD= 3.3V (MAX1363), VDD= 5V (MAX1364), f
SCL
= 1.7MHz, external clock, f
SAMPLE
= 94.4ksps, single-ended, unipolar,
T
A
= +25°C, unless otherwise noted.)
0
0.2
0.1
0.4
0.3
0.6
0.5
0.7
0.9
0.8
1.0
-40 -10 5-25 20 35 50 65 80
GAIN ERROR vs. TEMPERATURE
MAX1363/64 toc12
TEMPERATURE (°C)
GAIN ERROR (LSB)
SUPPLY CURRENT vs. TEMPERATURE
800
750
INTERNAL REFERENCE
700
650
600
INTERNAL REFERENCE
550
EXTERNAL REFERENCE
500
450
SUPPLY CURRENT (µA)
400
EXTERNAL REFERENCE
350
300
-40 -10 5-25 20 35 50 65 80
TEMPERATURE (°C)
MAX1364
SETUP BYTE
EXT REF: 10111010
INT REF: 11011010
MAX1363
MAX1364
MAX1363
AVERAGE SUPPLY CURRENT
vs. CONVERSION RATE (EXTERNAL CLOCK)
800
A) INTERNAL REFERENCE ALWAYS ON
750
B) EXTERNAL REFERENCE
700
650
600
(µA)
550
DD
500
450
AVERAGE I
400
350
300
250
200
010 50 70 90
02030406080100
CONVERSION RATE (ksps)
MAX1363/64 toc04
A
MAX1363/64 toc07
B
0.6
0.5
0.4
(µA)
0.3
DD
I
0.2
0.1
1.0010
1.0008
1.0006
1.0004
1.0002
1.0000
NORMALIZED
0.9998
REF
V
0.9996
0.9994
0.9992
0.9990
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SDA = SCL = V
0
2.7 5.2
DD
3.73.2 4.2 4.7
INPUT VOLTAGE (V)
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
NORMALIZED TO REFERENCE VALUE
AT +25°C
MAX1364
MAX1363
-40 -10 5-25 20 35 50 65 80
TEMPERATURE (°C)
MAX1363/64 toc05
1.00010
1.00008
1.00006
MAX1363/64 toc08
1.00004
1.00002
1.00000
NORMALIZED
0.99998
REF
V
0.99996
0.99994
0.99992
0.99990
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
0.50
0.45
MAX1364
0.40
0.35
0.30
0.25
0.20
MAX1363
0.15
SUPPLY CURRENT (µA)
0.10
0.05
0
-40 -10 5-25 20 35 50 65 80
TEMPERATURE (°C)
NORMALIZED REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX1364
NORMALIZED TO
REFERENCE VALUE AT
= 5V
V
DD
MAX1363
NORMALIZED TO
REFERENCE VALUE AT
= 3.3V
V
DD
2.7 3.3 3.6 3.93.0 4.2 4.5 4.8 5.1 5.4
VDD (V)
MAX1363/64 toc06
MAX1363/64 toc09
OFFSET ERROR vs. TEMPERATURE
0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
OFFSET ERROR (LSB)
-0.7
-0.8
-0.9
-1.0
-40 -10 5-25 20 35 50 65 80
TEMPERATURE (°C)
OFFSET ERROR vs. SUPPLY VOLTAGE
0
-0.1
MAX1363/64 toc10
-0.2
-0.3
-0.4
-0.5
-0.6
OFFSET ERROR (LSB)
-0.7
-0.8
-0.9
-1.0
2.7 3.3 3.6 3.93.0 4.2 4.5 4.8 5.1 5.4
VDD (V)
MAX1363/64 toc11
MAX1363/MAX1364
4-Channel, 12-Bit System Monitors with Programmable
Trip Window and SMBus Alert Response
8 _______________________________________________________________________________________
Pin Description
Functional Diagram
Typical Operating Characteristics (continued)
(VDD= 3.3V (MAX1363), VDD= 5V (MAX1364), f
SCL
= 1.7MHz, external clock, f
SAMPLE
= 94.4ksps, single-ended, unipolar,
T
A
= +25°C, unless otherwise noted.)
GAIN ERROR vs. SUPPLY VOLTAGE
1.0
0.9
0.8
0.7
0.6
0.5
0.4
GAIN ERROR (LSB)
0.3
0.2
0.1
0
2.7 3.73.2 4.2 4.7 5.2
VDD (V)
MAX1363/64 toc13
MONITOR-MODE SUPPLY CURRENT
vs. SPEED
700
600
500
400
300
SUPPLY CURRENT (µA)
200
100
0
0 150
INTERNAL REF
EXTERNAL REF
SPEED (ksps)
MAX1363/64 toc14
125100755025
PIN NAME FUNCTION
1 AIN0 Analog Input
2 AIN1 Analog Input
3 AIN2 Analog Input
4 AIN3/V
REF
5A0I
Analog Input or Reference Input or Output. See Table 3.
2
C Address Select Input. Connect to VDD or GND. See Table 1.
6 INT Active-Low, Open-Drain Interrupt Output
7 SCL I2C Clock Input
8 SDA I2C Data Input/Output
9 GND Ground
10 V
DD
Positive Supply Voltage. Bypass V
to GND with a 0.1µF capacitor.
DD
V
DD
SDA
SCL
A0
INT
AIN0
AIN1
AIN2
AIN3/
REF
4:1
MUX
CLK
12-BIT
ADC
INT
REF
GND
I2C
INTERFACE
CONTROL
TRIP
THRESHOLDS
MAX1363/MAX1364
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