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PDF MAX1407 Data sheet ( Hoja de datos )
| Número de pieza | MAX1407 | |
| Descripción | 16-Bit Multichannel DAS | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-2229; Rev 0; 10/01
Low-Power, 16-Bit Multichannel DAS with
Internal Reference,10-Bit DACs, and RTC
General Description
The MAX1407/MAX1408/MAX1409/MAX1414 are low-
power, general-purpose, multichannel data-acquisition
systems (DAS). These devices are optimized for low-
power applications. All the devices operate from a sin-
gle +2.7V to +3.6V power supply and consume a
maximum of 1.15mA in Run mode and only 2.5µA in
Sleep mode.
The MAX1407/MAX1408/MAX1414 feature a differential
8:1 input multiplexer to the ADC, a programmable
three-state digital output, an output to shutdown an
external power supply, and a data ready output from
the ADC. The MAX1408 has eight auxiliary analog
inputs, while the MAX1407/MAX1414 include four auxil-
iary analog inputs and two 10-bit force/sense DACs.
The MAX1414 features a 50mV trip threshold for the
signal-detect comparator while the others have a 0mV
trip threshold. The MAX1409 is a 20-pin version of the
DAS family with a differential 4:1 input multiplexer to the
ADC, one auxiliary analog input, and one 10-bit
force/sense DAC.
The MAX1407/MAX1408/MAX1414 are available in
space-saving 28-pin SSOP packages, while the
MAX1409 is available in a 20-pin SSOP package.
Applications
Medical Instruments
Industrial Control Systems
Portable Equipment
Data-Acquisition System
Automatic Testing
Robotics
Pin Configurations
TOP VIEW
FB2 1
DO 2
FB1 3
OUT1 4
IN0 5
REF 6
AGND 7
AVDD 8
CPLL 9
WU1 10
WU2 11
RESET 12
IN1 13
IN2 14
MAX1407
MAX1414
28 OUT2
27 IN3
26 DVDD
25 DGND
24 CS
23 SCLK
22 DIN
21 DOUT
20 INT
19 CLKIN
18 CLKOUT
17 FOUT
16 DRDY
15 SHDN
Features
o +2.7V to +3.6V Supply Voltage Range in Standby,
Idle, and Run Mode (Down to 1.8V in Sleep Mode)
o 1.15mA Run Mode Supply Current
o 2.5µA Sleep Mode Supply Current (Wake-Up, RTC,
and Voltage Monitor Active)
o Multichannel 16-Bit Sigma-Delta ADC
±1.5 LSB (typ) Integral Nonlinearity
30Hz or 60Hz Continuous Conversion Rate
Buffered or Unbuffered Mode
Gain of +1/3, +1, or +2V/V
Unipolar or Bipolar Mode
On-Chip Offset Calibration
o 10-Bit Force/Sense DACs
o Buffered 1.25V, 18ppm/°C (typ) Bandgap
Reference Output
o SPI™/QSPI™ or MICROWIRE™-Compatible Serial
Interface
o System Support Functions
RTC (Valid til 9999) and Alarm
High-Frequency PLL Clock Output (2.4576MHz)
+1.8V and +2.7V RESET and Power-Supply
Voltage Monitors
Signal Detect Comparator
Interrupt Generator (INT and DRDY)
Three-State Digital Output
Wake-Up Circuitry
o 28-Pin SSOP (MAX1407/MAX1408/MAX1414),
20-Pin SSOP (MAX1409)
Ordering Information
PART
MAX1407CAI
MAX1408CAI
MAX1409CAP
MAX1414CAI
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
28 SSOP
28 SSOP
20 SSOP
28 SSOP
Pin Configurations continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ 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.
1 page  
Low-Power, 16-Bit Multichannel DAS with
Internal Reference,10-Bit DACs, and RTC
ELECTRICAL CHARACTERISTICS (continued)
(DVDD = AVDD = +2.7V to 3.6V, 4.7µF at REF, internal VREF, 18nF between CPLL and AVDD, 32.768kHz crystal across CLKIN and
CLKOUT, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
RESET Output Leakage
Turn-On Time
SYMBOL
CONDITIONS
AVDD > VTH, RESET deasserted
CRYSTAL OSCILLATOR
Crystal Frequency
Crystal Load Capacitance
AVDD = +3V
Oscillator Stability
Oscillator Startup Time
AVDD = +1.8V to +3.6V, excluding crystal
PLL
FOUT Frequency
Absolute Clock Jitter
AVDD = +3V
Cycle-to-cycle
Frequency Tolerance/Stability
Overtemperature excluding crystal,
TA = TMIN to TMAX
Oversupply voltage, +2.7V< AVDD< +3.6V
FOUT Rise/Fall Time
20% to 80% waveform, CL = 30pF
Duty Cycle
DIGITAL INPUTS (DIN, SCLK, CS, WU1, WU2)
Input High Voltage
DVDD = +1.8V to +3.6V
Input Low Voltage
DVDD = +1.8V to +3.6V
Input Hysteresis
DVDD = +3V
DIN, SCLK, CS, Input Current
VIN = 0 or VIN = DVDD
WU1, WU2 Input Current
VIN = AVDD
WU1, WU2 Pullup Current
VIN = 0
Input Capacitance
DIGITAL OUTPUTS (DOUT, FOUT, INT, DRDY, SHDN, D0)
DOUT, FOUT, DRDY, INT
Output Low Voltage
VOL ISINK = 1mA, DVDD = +1.8V to +3.6V
MIN TYP MAX UNITS
0.002 0.1
µA
2 ms
32.768
6
0
1.5
kHz
pF
ppm/V
s
2.4576
10
MHz
ns
0 ppm/°C
0 ppm/mV
15 30
ns
40 50 60
%
0.7 x
DVDD
200
±0.01
0.01
10
10
0.3 x
DVDD
±10
10
V
V
mV
µA
µA
µA
pF
0.4 V
DOUT, FOUT, DRDY, INT,
SHDN Output High Voltage
DOUT Three-State Leakage
DOUT Three-State Capacitance
VOH
ISOURCE = 0.2mA, DVDD = +1.8V to +3.6V 0.8 x DVDD
±0.01
15
±10
V
µA
pF
SHDN Output Low Voltage
(MAX1407/MAX1408/MAX1414
only)
ISINK = 1mA, DVDD = +1.8V to +3.6V
ISINK = 50µA, DVDD = +1.8V to +3.6V
0.4
0.04 x
DVDD
V
_______________________________________________________________________________________ 5
5 Page 
Low-Power, 16-Bit Multichannel DAS with
Internal Reference,10-Bit DACs, and RTC
Typical Operating Characteristics (continued)
(AVDD = DVDD = 3V, MAX1407 used, TA = +25°C, unless otherwise noted.)
GAIN ERROR vs. TEMPERATURE
0.12
VDD = 3V
0.11
B
0.10
D
0.09
0.08 C
A
0.07
0.06
0
20 40 60 80
TEMPERATURE (°C)
A: GAIN = 1, UNIPOLAR MODE, UNBUFFERED MODE
B: GAIN = 1, BIPOLAR MODE, UNBUFFERED MODE
C: GAIN = 2, UNIPOLAR MODE, BUFFERED MODE
D: GAIN = 2, BIPOLAR MODE, BUFFERED MODE
0.02
0
-0.02
-0.04
-0.06
-0.08
-0.10
-0.12
-40
REFERENCE VOLTAGE vs.
TEMPERATURE
VREF = 1.24406V
IREF = 0
-15 10 35 60
TEMPERATURE (°C)
85
1.24410
REFERENCE VOLTAGE vs.
OUTPUT SOURCE CURRENT
1.24405
1.24400
1.24395
1.24390
1.24385
1.24380
0
200 400 600 800 1000 1200
SOURCE CURRENT (µA)
1.24412
1.24410
REFERENCE VOLTAGE vs.
SUPPLY VOLTAGE
NO LOAD
1.24408
1.24406
1.24404
1.24402
1.24400
1.24398
2.70
2.85 3.00 3.15 3.30 3.45
SUPPLY VOLTAGE (V)
3.60
DAC OFFSET ERROR vs.
TEMPERATURE
-3.4
IDLE MODE
-3.6
-3.8
-4.0
-4.2
-4.4
-4.6
-4.8
-5.0
-5.2
-40
-15 10 35 60
TEMPERATURE (°C)
85
-4.400
-4.425
DAC OFFSET ERROR vs.
SUPPLY VOLTAGE
IDLE MODE
-4.450
-4.475
-4.500
-4.525
-4.550
-4.575
-4.600
2.70
2.85 3.00 3.15 3.30 3.45
SUPPLY VOLTAGE (V)
3.60
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MAX1407.PDF ] | |
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