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參數資料
| 型號： | MAX127AEAI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Multirange, +5V, 12-Bit DAS with 2-Wire Serial Interface |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO28 |
| 封裝： | SSOP-28 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 124K |
| 代理商： | MAX127AEAI |
General Desc ription
The MAX127/MAX128 are multirange, 12-bit data
acquisition systems (DAS) that require only a single
+5V supply for operation, yet accept signals at their
analog inputs that may span above the power-supply
rail and below ground. These systems provide eight
analog input channels that are independently software
programmable for a variety of ranges: ±10V, ±5V, 0 to
+10V, 0 to +5V for the MAX127; and ±V
REF
, ±V
REF
/2, 0
to +V
REF
, 0 to +V
REF
/2 for the MAX128. This range
switching increases the effective dynamic range to 14
bits and provides the flexibility to interface 4–20mA,
±12V, and ±15V-powered sensors directly to a single
+5V system. In addition, these converters are fault pro-
tected to ±16.5V; a fault condition on any channel will
not
affect the conversion result of the selected channel.
Other features include a 5MHz bandwidth track/hold,
an 8ksps throughput rate, and the option of an internal
4.096V or external reference.
The MAX127/MAX128 feature a 2-wire, I
2
C-compatible
serial interface that allows communication among multi-
ple devices using SDA and SCL lines.
A hardware shutdown input (
SHDN
) and two software-
programmable power-down modes (standby and full
power-down) are provided for low-current shutdown
between conversions. In standby mode, the reference-
buffer remains active, eliminating start-up delays.
The MAX127/MAX128 are available in 24-pin DIP or
space-saving 28-pin SSOP packages.
Applic ations
Industrial Control Systems
Data-Acquisition Systems
Robotics
Automatic Testing
Battery-Powered Instruments
Medical Instruments
Features
o
12-Bit Resolution, 1/2 LSB Linearity
o
+5V Single-Supply Operation
o
I
2
C-Compatible, 2-Wire Serial Interface
o
Four Software-Selectable Input Ranges
MAX127: 0 to +10V, 0 to +5V, ±10V, ±5V
MAX128: 0 to +V
REF
, 0 to +V
REF
/2, ±V
REF
,
±V
REF
/2
o
8 Analog Input Channels
o
8ksps Sampling Rate
o
±16.5V Overvoltage-Tolerant Input Multiplexer
o
Internal 4.096V or External Reference
o
Two Power-Down Modes
o
24-Pin Narrow DIP or 28-Pin SSOP Packages
EVALUATION KIT
AVAILABLE
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
M
Multirange, +5V, 12-Bit DAS with
2-Wire S erial Interfac e
________________________________________________________________ Maxim Integrated Products
1
V
DD
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
DGND
0.01
μ
F
μ
C
4.7
μ
F
0.1
μ
F
1k
SHDN
MAX127
MAX128
+5V
ANALOG
INPUTS
SCL
SDA
A0
A1
A2
REF
REFADJ
AGND
SCL
SDA
Typic al Operating Circ uit
19-4773; Rev 0; 7/98
Ordering Information continued at end of data sheet.
PART
MAX127
ACNG
MAX127ACNG
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
24 Narrow Plastic DIP
24 Narrow Plastic DIP
±1
±1/2
INL
(LSB)
Pin Configurations appear at end of data sheet.
Ordering Information
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX127AEAI/GH9 | 功能描述:數據轉換系統(tǒng) RoHS:否 制造商:Texas Instruments 轉換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX127AEAI/GH9-T | 功能描述:數據轉換系統(tǒng) RoHS:否 制造商:Texas Instruments 轉換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX127AEAI+ | 功能描述:數據轉換系統(tǒng) 12-Bit 8Ch 8ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 轉換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX127AEAI+T | 功能描述:數據轉換系統(tǒng) 12-Bit 8Ch 8ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 轉換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX127AEAI-T | 功能描述:數據轉換系統(tǒng) RoHS:否 制造商:Texas Instruments 轉換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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