|
|
PDF MAX1358B Data sheet ( Hoja de datos )
| Número de pieza | MAX1358B | |
| Descripción | Data-Acquisition System | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MAX1358B (archivo pdf) en la parte inferior de esta página. Total 70 Páginas | ||
|
No Preview Available !
DataSheet.in
19-5159; Rev 0; 8/10
16-Bit, Data-Acquisition System with ADC, DACs,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
General Description
The MAX1358B smart data-acquisition system (DAS) is
based on a 16-bit, sigma-delta analog-to-digital converter
(ADC) and system-support functionality for a micro-
processor (µP)-based system. This device integrates
an ADC, DACs, operational amplifiers, internal selec-
table-voltage reference, temperature sensors, analog
switches, a 32kHz oscillator, a real-time clock (RTC)
with alarm, a high-frequency-locked loop (FLL) clock,
four user-programmable I/Os, an interrupt generator,
and 1.8V and 2.7V voltage monitors in a single chip.
The MAX1358B has dual 10:1 differential input multiplex-
ers (muxes) that accept signal levels from 0 to AVDD. An
on-chip 1x to 8x programmable-gain amplifier (PGA)
allows measuring low-level signals and reduces external
circuitry required.
The MAX1358B operates from a single +1.8V to +3.6V
supply and consumes only 1.15mA in normal mode and
only 3µA in sleep mode. The MAX1358B has two DACs
with one uncommitted op amp.
The serial interface is compatible with either SPI™/QSPI™
or MICROWIRE™, and is used to power up, configure,
and check the status of all functional blocks.
The MAX1358B is available in a space-saving, 40-pin
TQFN package and is specified over the commercial
(0°C to +70°C) and the extended (-40°C to +85°C) tem-
perature ranges.
Applications
Battery-Powered and Portable Devices
Electrochemical and Optical Sensors
Medical Instruments
Industrial Control
Data-Acquisition Systems
Features
o +1.8V to +3.6V Single-Supply Operation
o Multichannel, 16-Bit, Sigma-Delta ADC
10sps to 477sps Programmable Conversion Rate
Self- and System Offset and Gain Calibration
PGA with Gains of 1, 2, 4, or 8
Unipolar and Bipolar Modes
10-Input Differential Multiplexer
o 10-Bit Force-Sense DACs
o Uncommitted Op Amps
o Dual SPDT and SPST Analog Switches
o Selectable References
1.25V, 2.048V, and 2.5V
o Internal Charge Pump
o System Support
RTC and Alarm Register
Internal/External Temperature Sensor
Internal Oscillator with Clock Output
User-Programmable I/O and Interrupt Generator
VDD Monitors
o SPI/QSPI/MICROWIRE, 4-Wire Serial Interface
o Space-Saving (6mm x 6mm x 0.8mm), 40-Pin
TQFN Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX1358BCTL+
MAX1358BETL+
0°C to +70°C
-40°C to +85°C
40 TQFN-EP*
40 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Pin Configuration
TOP VIEW
30 29 28 27 26 25 24 23 22 21
AIN2 31
AIN1 32
REF 33
REG 34
CF- 35
CF+ 36
CPOUT 37
DVDD 38
DGND 39
UPIO1 40
MAX1358B
+ *EP
1 2 3 4 5 6 7 8 9 10
20 OUT1
19 SNC2
18 SCM2
17 SNO2
16 SNC1
15 SCM1
14 SNO1
13 32KIN
12 32KOUT
11 RESET
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
*EXPOSED PAD.
TQFN
________________________________________________________________ Maxim Integrated Products 1
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.
1 page  
DataSheet.in
16-Bit, Data-Acquisition System with ADC, DACs,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = DVDD = +1.8V to +3.6V, VREF = +1.25V, external reference, fCLK32K = 32.768kHz (external clock), CREG = 10µF, CCPOUT =
10µF, 10µF between CF+ and CF-, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Long-Term Stability
Output Noise Voltage
Turn-On Settling Time
TEMPERATURE SENSOR
Temperature Measurement
Resolution
SYMBOL
CONDITIONS
(Note 9)
f = 0.1Hz to 10Hz, AVDD = 3V
f = 10Hz to 10kHz, AVDD = 3V
Buffer only, settle to 0.1% of final value
10sps
MIN TYP MAX UNITS
150 ppm/
1000hrs
50
200 µVP-P
100 µs
0.11 °C/LSB
Internal Temperature-Sensor
Measurement Error (Note 10)
External voltage
reference, two-
current method
TA = 0°C to +50°C
TA = -40oC to +85°C
±0.5
±1
°C
External Temperature-Sensor
Measurement Error (Note 11)
Temperature Measurement Noise
TA = +25°C
TA = 0°C to +50°C
TA = -40°C to +85°C
±0.5
±0.5
±1.0
0.18
°C
°CRMS
Temperature Measurement
Power-Supply Rejection Ratio
0.2 °C/V
OP AMP
Input Offset Voltage
Offset-Error Tempco
VOS VCM = 0.5V
±1 ±15 mV
6.2 µV/oC
Input Bias Current (Note 7)
Input Offset Current
IBIAS
IOS
TA = -40°C to +85°C
IN1+
TA = 0°C to +70°C
TA = 0°C to +50°C
TA = -40°C to +85°C
IN1- TA = 0°C to +70°C
TA = 0°C to +50°C
VIN1_ = +0.3V to (AVDD - 0.3V) (Note 7)
0.006
4
2
0.025
20
±1
±300
±200
±1
±600
±400
±1
nA
pA
nA
pA
nA
Input Common-Mode Voltage
Range
CMVR
0
AVDD -
V
0.35
Common-Mode Rejection Ratio
CMRR
0 ≤ VCM ≤ 75mV
75mV < VCM ≤ AVDD - 0.5V, TA = +25°C
AVDD - 0.5V ≤ VCM ≤ AVDD - 0.35V
60
60 75
75
dB
_______________________________________________________________________________________ 5
5 Page 
DataSheet.in
16-Bit, Data-Acquisition System with ADC, DACs,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
Table 1. Output Noise (Notes 13 and 14)
RATE (sps)
GAIN = 1
OUTPUT NOISE (µVRMS)
GAIN = 2
GAIN = 4
GAIN = 8
10 1.75 1.75 1.75 1.75
40 2.92 2.92 2.92 2.92
50 3.23 3.23 3.23 3.23
60 3.60 3.60 3.60 3.60
200 56.06
56.06
56.06
56.06
240 102.36
102.36
102.36
102.36
400 587.06
587.06
587.06
587.06
477 951.07
951.07
951.07
951.07
Note 13: VREF = +1.25V, bipolar mode, VIN = 1.24912V, PGA gain = 1, TA = +25°C.
Note 14: Assume ±3 sigma peak-to-peak variation; noise-free resolution means no code flicker at given bits’ LSB.
Table 2. Peak-to-Peak Resolution
RATE (sps)
10
40
50
60
200
240
400
477
GAIN = 1
17.57
16.83
16.68
16.53
12.57
11.70
9.18
8.48
PEAK-TO-PEAK RESOLUTION (BITS)
GAIN = 2
GAIN = 4
16.57
15.57
15.83
14.83
15.68
14.68
15.53
14.53
11.57
10.57
10.70
9.70
8.18 7.18
7.48 6.48
GAIN = 8
14.57
13.83
13.68
13.53
9.57
8.70
6.18
5.48
Table 3. Maximum External Source Impedance Without 16-Bit Gain Error
PARAMETER
0 (Note 15)
EXTERNAL CAPACITANCE (pF)
50 100 500 1000
Resistance (kΩ)
350 60 30 10
4
Note 15: 2pF parasitic capacitance is assumed, which represents pad and any other parasitic capacitance.
5000
1
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet MAX1358B.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MAX1358B | Data-Acquisition System | Maxim Integrated Products |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |