參數(shù)資料
型號： MAX192
廠商： Maxim Integrated Products, Inc.
英文描述： Low-Power, 8-Channel,Serial 10-Bit ADC(8通道,133ksps串行10位A/D轉(zhuǎn)換器)
中文描述： 低功耗、8通道、串行10位ADC
文件頁數(shù)： 1/24頁
文件大?。?/td> 211K
代理商： MAX192
_______________General Desc ription
The MAX192 is a low-cost, 10-bit data-acquisition system
that combines an 8-channel multiplexer, high-bandwidth
track/hold, and serial interface with high conversion
speed and ultra-low power consumption. The device
operates with a single +5V supply. The analog inputs
are software configurable for single-ended and differen-
tial (unipolar/bipolar) operation.
The 4-wire serial interface connects directly to SPI ,
QSPI, and Microwire devices, without using external
logic. A serial strobe output allows direct connection to
TMS320 family digital signal processors. The MAX192
uses either the internal clock or an external serial-inter-
face clock to perform successive approximation A/D
conversions. The serial interface can operate beyond
4MHz when the internal clock is used. The MAX192 has
an internal 4.096V reference with a drift of ±30ppm typi-
cal. A reference-buffer amplifier simplifies gain trim and
two sub-LSBs reduce quantization errors.
The MAX192 provides a hardwired –———Npin and two
software-selectable power-down modes. Accessing
the serial interface automatically powers up the device,
and the quick turn-on time allows the MAX192 to be
shut down between conversions. By powering down
between conversions, supply current can be cut to
under 10μA at reduced sampling rates.
The MAX192 is available in 20-pin DIP and SO pack-
ages, and in a shrink-small-outline package (SSOP)
that occupies 30% less area than an 8-pin DIP. The
data format provides hardware and software compati-
bility with the MAX186/MAX188. For anti-aliasing filters,
consult the data sheets for the MAX291–MAX297.
________________________Applic ations
Automotive
Pen-Entry Systems
Consumer Electronics
Portable Data Logging
Robotics
Battery-Powered Instruments, Battery
Management
Medical Instruments
____________________________Features
o
8-Channel Single-Ended or 4-Channel Differential
Inputs
o
Single +5V Operation
o
Low Power: 1.5mA (operating)
2μA (power-down)
o
Internal Track/Hold, 133kHz Sampling Rate
o
Internal 4.096V Reference
o
4-Wire Serial Interface is Compatible
with SPI, QSPI, Microwire, and TMS320
o
20-Pin DIP, SO, SSOP Packages
o
Pin-Compatible 12-Bit Upgrade (MAX186/MAX188)
______________Ordering Information
PART
TEMP. RANGE
MAX192
ACPP
0°C to +70°C
MAX192BCPP
0°C to +70°C
MAX192ACWP
0°C to +70°C
MAX192BCWP
0°C to +70°C
MAX192ACAP
0°C to +70°C
MAX192BCAP
0°C to +70°C
MAX192AEPP
-40°C to +85°C
MAX192BEPP
-40°C to +85°C
MAX192AEWP
-40°C to +85°C
MAX192BEWP
-40°C to +85°C
MAX192AEAP
-40°C to +85°C
MAX192BEAP
-40°C to +85°C
MAX192AMJ P
-55°C to +125°C
MAX192BMJ P
-55°C to +125°C
M
Low-Power, 8-Channel,
S erial 10-Bit ADC
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
TOP VIEW
DIP/SO/SSOP
V
DD
SCLK
CS
DIN
SSTRB
DOUT
DGND
AGND
REFADJ
VREF
SHDN
AGND
CH7
CH6
CH5
CH4
CH3
CH2
CH1
CH0
MAX192
__________________Pin Configuration
SPI and QSPI are trademarks of Motorola Corp.
Microwire is a trademark of National Semiconductor Corp.
19-0247; Rev. 0; 3/94
20 Wide SO
20 Wide SO
20 SSOP
20 SSOP
20 Plastic DIP
20 Plastic DIP
20 Wide SO
20 Wide SO
20 SSOP
20 SSOP
20 CERDIP
20 CERDIP
20 Plastic DIP
20 Plastic DIP
PIN-PACKAGE
±1/2
±1
±1/2
±1
±1/2
±1
±1/2
±1
±1/2
±1
±1/2
±1
±1
±1/2
INL(LSBs)
See last page for Typical Operating Circuit.
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