|
|
PDF MAX1393 Data sheet ( Hoja de datos )
| Número de pieza | MAX1393 | |
| Descripción | (MAX1393 / MAX1396) 1-Channel True-Differential/ 2-Channel Single-Ended | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MAX1393 (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
|
No Preview Available !
www.DataSheet4U.com
19-3644; Rev 0; 5/05
1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 12-Bit, SAR ADCs
General Description
The MAX1393/MAX1396 micropower, serial-output, 12-
bit, analog-to-digital converters (ADCs) operate with a
single power supply from +1.5V to +3.6V. These ADCs
feature automatic shutdown, fast wake-up, and a high-
speed 3-wire interface. Power consumption is only
0.734mW (VDD = +1.5V) at the maximum conversion rate
of 312.5ksps. AutoShutdown™ between conversions
reduces power consumption at slower throughput rates.
The MAX1393/MAX1396 require an external reference
VREF that has a wide range from 0.6V to VDD. The
MAX1393 provides one true-differential analog input
that accepts signals ranging from 0 to VREF (unipolar
mode) or ±VREF/2 (bipolar mode). The MAX1396 pro-
vides two single-ended inputs that accept signals rang-
ing from 0 to VREF. Analog conversion results are
available through a 5MHz 3-wire SPI™-/QSPI™-/
MICROWIRE™-/digital signal processor (DSP)-compati-
ble serial interface. Excellent dynamic performance,
low voltage, low power, ease of use, and small pack-
age sizes make these converters ideal for portable bat-
tery-powered data-acquisition applications, and for
other applications that demand low power consumption
and minimal space.
The MAX1393/MAX1396 are available in a space-saving
(3mm x 3mm) 10-pin TDFN package or 10-pin µMAX®
package. The parts operate over the extended (-40°C to
+85°C) and military (-55°C to +125°C) temper-
ature ranges.
Applications
Portable Datalogging
Data Acquisition
Medical Instruments
Battery-Powered Instruments
Process Control
Features
♦ 312.5ksps, 12-Bit Successive-Approximation
Register (SAR) ADCs
♦ Single True-Differential Analog Input Channel
with Unipolar-/Bipolar-Select Input (MAX1393)
♦ Dual Single-Ended Input Channel with Channel-
Select Input (MAX1396)
♦ ±1 LSB INL, ±1 LSB DNL, No Missing Codes
♦ ±2 LSB Total Unadjusted Error (TUE)
♦ 70dB SINAD at 75kHz Input Frequency
♦ External Reference (0.6V to VDD)
♦ Single-Supply Voltage (+1.5V to +3.6V)
♦ 0.915mW at 300ksps, 1.8V
♦ 0.305mW at 100ksps, 1.8V
♦ 3.1µW at 1ksps, 1.8V
♦ < 1µA Shutdown Current
♦ AutoShutdown Between Conversions
♦ SPI-/QSPI-/MICROWIRE-/DSP-Compatible,
3- or 4-Wire Serial Interface
♦ Small (3mm x 3mm) 10-Pin TDFN or µMAX
(3mm x 5mm) Package
Typical Operating Circuit and Pin Configurations appear at
end of data sheet.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
PART
TEMP RANGE
MAX1393ETB
MAX1393EUB
-40°C to +85°C
-40°C to +85°C
MAX1393MTB*
-55°C to +125°C
MAX1393MUB*
MAX1396ETB
-55°C to +125°C
-40°C to +85°C
MAX1396EUB*
MAX1396MTB*
-40°C to +85°C
-55°C to +125°C
MAX1396MUB*
-55°C to +125°C
*Future product—contact factory for availability.
**EP = Exposed pad.
PIN-PACKAGE
10 TDFN-EP**
10 µMAX
10 TDFN-EP**
10 µMAX
10 TDFN-EP**
10 µMAX
10 TDFN-EP**
10 µMAX
ANALOG INPUTS
1-CH DIFF
1-CH DIFF
1-CH DIFF
1-CH DIFF
2-CH S/E
2-CH S/E
2-CH S/E
2-CH S/E
TOP MARK
AOZ
—
—
—
APC
—
—
—
________________________________________________________________ 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  
1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 12-Bit, SAR ADCs
UNI/BIP OR
CH1/CH2
OE
CS
SCLK
tCHS
tUBS
tCHH
tUBH
tCSO tCSS
tDOE
tCL tCH
tCP
DOUT
HIGH-Z
Figure 1. Detailed Serial-Interface Timing Diagram
tDOV
tOEW
tCSW
tDOD
HIGH-Z
VDD
DOUT
10mA
DOUT
50pF
10mA
50pF
GND GND
a) HIGH IMPEDANCE TO VOH, VOL TO VOH, b) HIGH IMPEDANCE TO VOL, VOH TO VOL,
AND VOH TO HIGH IMPEDANCE
AND VOL TO HIGH IMPEDANCE
Figure 2. Load Circuits for Enable/Disable Times
_______________________________________________________________________________________ 5
5 Page 
1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 12-Bit, SAR ADCs
AutoShutdown Mode
The ADC automatically powers down on the SCLK
falling edge that clocks out the LSB. This is the falling
edge after the 15th SCLK. DOUT goes low when the
LSB has been clocked into the master (µC) on the 16th
rising SCLK edge.
Alternatively, drive OE high to force the MAX1393/
MAX1396 into power-down. Whenever OE goes high,
the ADC powers down and disables DOUT regardless
of CS, SCLK, or the state of the ADC. DOUT enters a
high-impedance state after tDOD.
External Reference
The MAX1393/MAX1396 use an external reference
between 0.6V and (VDD + 50mV). Bypass REF with a
I/O
SCK
MISO
I/O
a) SPI
CS
SCK
MISO
I/O
b) QSPI
I/O
SK
SI
I/O
OE
CS
SCLK MAX1393
MAX1396
DOUT
UNI/BIP
(CH1/CH2)*
OE
CS
SCLK MAX1393
MAX1396
DOUT
UNI/BIP
(CH1/CH2)*
OE
CS
SCLK MAX1393
MAX1396
DOUT
UNI/BIP
(CH1/CH2)*
0.1µF capacitor to GND for best performance (see the
Typical Operating Circuit).
Serial Interface
The MAX1393/MAX1396 serial interface is fully compati-
ble with SPI, QSPI, and MICROWIRE (see Figure 7). If a
serial interface is available, set the µC’s serial interface
in master mode so the µC generates the serial clock.
Choose a clock frequency between 100kHz and 5MHz.
CS and OE can be connected together and driven
simultaneously. OE can also be connected to GND if the
DOUT bus is not shared and driven independently.
SPI and MICROWIRE
When using SPI or MICROWIRE, make the µC the bus
master and set CPOL = 0 and CPHA = 0 or CPOL = 1
and CPHA = 1. (These are the bits in the SPI or
MICROWIRE control register.) Two consecutive 1-byte
reads are required to get the entire 12-bit result from
the ADC. DOUT transitions on SCLK’s falling edge and
is clocked into the µC on the SCLK’s rising edge. See
Figure 7 for connections and Figures 8 and 9 for timing
diagrams. The conversion result contains 4 zeros, fol-
lowed by the 12 data bits with the data in MSB-first for-
mat. When using CPOL = 0 and CPHA = 0 or CPOL = 1
and CPHA = 1, the MSB of the data is clocked into the
µC on the SCLK’s fifth rising edge. To be compatible
with SPI and MICROWIRE, connect CS and OE togeth-
er and drive simultaneously.
QSPI
Unlike SPI, which requires two 1-byte reads to acquire
the 12 bits of data from the ADC, QSPI allows the mini-
mum number of clock cycles necessary to clock in the
data. However, the MAX1393/MAX1396 require 16
clock cycles from the µC to clock out the 12 bits of
data. See Figure 7 for connections and Figures 8 and 9
for timing diagrams. The conversion result contains 4
zeros, followed by the 12 data bits with the data in
MSB-first format. When using CPOL = 0 and CPHA = 0
or CPOL = 1 and CPHA = 1, the MSB of the data is
clocked into the µC on the SCLK’s fifth rising edge. To
be compatible with QSPI, connect CS and OE together
and drive simultaneously.
DSP Interface
Figure 10 shows the timing for DSP operation. Figure
11 shows the connections between the MAX1393/
MAX1396 and several common DSPs.
c) MICROWIRE
*INDICATES THE MAX1396
Figure 7. Common Serial-Interface Connections to the
MAX1393/MAX1396
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet MAX1393.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MAX139 | 3 1/2 Digit A/D Converters |  Maxim Integrated |
| MAX1391 | (MAX1391 / MAX1394) 1-Channel True-Differential/ 2-Channel Single-Ended | Maxim Integrated Products |
| MAX1392 | (MAX1392 / MAX1395) 1-Channel True-Differential/ 2-Channel Single-Ended | Maxim Integrated Products |
| MAX1393 | (MAX1393 / MAX1396) 1-Channel True-Differential/ 2-Channel Single-Ended | 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 |