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参数资料
| 型号： | MAX199BMYI |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | Multi-Range (【4V, 【2V, +4V, +2V), +5V Supply, 12-Bit DAS with 8+4 Bus Interface |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, CDIP28 |
| 封装： | 0.600 INCH, SIDE BRAZED, CERAMIC, DIP-28 |
| 文件页数： | 1/16页 |
| 文件大小： | 165K |
| 代理商： | MAX199BMYI |
_______________General Desc ription
The MAX199 multi-range, 12-bit data-acquisition system
(DAS) requires only a single +5V supply for operation,
and converts analog signals up to ±4V at its inputs. This
system provides eight analog input channels that are
independently software programmable for a variety of
ranges: ±V
REF
, ±V
REF/2
, 0V to V
REF
, or 0V to V
REF/2
.
This increases effective dynamic range to 14 bits, and
provides the user flexibility to interface 4mA-to-20mA,
±12V, and ±15V powered sensors to a single +5V sys-
tem. In addition, the converter is fault-protected to
±16.5V; a fault condition on any channel will
not
affect
the conversion result of the selected channel. Other fea-
tures include a 5MHz bandwidth track/hold, 100ksps
throughput rate, internal/external clock, internal/external
acquisition control, 8+4 parallel interface, and operation
with an internal 4.096V or external reference.
A hardware SHDN pin and two programmable power-
down modes (STBYPD, FULLPD) provide low-current
shutdown between conversions. In STBYPD mode, the
reference buffer remains active, eliminating start-up
delays.
The MAX199 employs a standard microprocessor (μP)
interface. Its three-state data I/O interface is configured
to operate with 8-bit data buses, and data-access and
bus-release timing specifications are compatible with
most popular μPs. All logic inputs and outputs are
TTL/CMOS compatible.
The MAX199 is available in 28-pin DIP, wide SO, SSOP,
and ceramic SB packages.
For a different combination of input ranges (±10V, ±5V,
0V to 10V, 0V to 5V), see the MAX197 data sheet. For 12-
bit bus interfaces, see the MAX196/MAX198 data sheet.
________________________Applic ations
Industrial-Control Systems
Robotics
Data-Acquisition Systems
Automatic Testing Systems
Medical Instruments
Telecommunications
____________________________Features
o
12-Bit Resolution, 1/2LSB Linearity
o
Single +5V Operation
o
Software-Selectable Input Ranges:
±V
REF
, ±V
REF/2
, 0V to V
REF
, 0V to V
REF/2
o
Internal 4.096V or External Reference
o
Fault-Protected Input Multiplexer (±16.5V)
o
8 Analog Input Channels
o
6μs Conversion Time, 100ksps Sampling Rate
o
Internal or External Acquisition Control
o
Two Power-Down Modes
o
Internal or External Clock
M
Multi-Range (±4V, ±2V, +4V, +2V ),
+5V S upply, 12-Bit DAS with 8+4 Bus Interfac e
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-722-8266 for free samples or literature.
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DGND
V
DD
REF
REFADJ
INT
CH7
AGND
CH6
CH5
CH4
CH3
CH2
CH1
CH0
D0/D8
D1/D9
D2/D10
D3/D11
D4
D5
D6
D7
SHDN
HBEN
RD
WR
CS
CLK
DIP/SO/SSOP/Ceramic SB
TOP VIEW
MAX199
__________________Pin Configuration
19-0401; Rev 0; 6/95
PART
MAX199ACNI
MAX199BCNI
MAX199ACWI
MAX199BCWI
MAX199ACAI
MAX199BCAI
MAX199BC/D
Ordering Information continued at end of data sheet.
*Dice are specified at T
A
= +25°C, DC parameters only.
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
28 Narrow Plastic DIP
28 Narrow Plastic DIP
28 Wide SO
28 Wide SO
28 SSOP
28 SSOP
Dice*
______________Ordering Information
Functional Diagram appears at end of data sheet.
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