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參數(shù)資料
| 型號(hào)： | MAX1458AAE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | 1%-Accurate, Digitally Trimmed Sensor Signal Conditioner |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | 5.30 MM, 0.65 MM PITCH, SSOP-16 |
| 文件頁(yè)數(shù)： | 16/20頁(yè) |
| 文件大?。?/td> | 145K |
| 代理商： | MAX1458AAE |
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M
Ratiometric Output Configuration
Ratiometric output configuration provides an output that
is proportional to the power-supply voltage. When used
with ratiometric A/D converters, this output provides
digital pressure values independent of supply voltage.
Most automotive and some industrial applications
require ratiometric outputs.
The MAX1458 provides a high-performance ratiometric
output with a minimum number of external components
(Figure 10). These external components include the fol-
lowing:
One power-supply bypass capacitor (C1)
Two optional resistors, one from FSOTC to ISRC, and
another from ISRC to V
SS
, depending on the sensor
type
One optional capacitor C2 from BDRIVE to V
SS
T est S ystem Configuration
The MAX1458 is designed to support an automated
production pressure-temperature test system with inte-
grated calibration and temperature compensation.
Figure 11 shows the implementation concept for a low-
cost test system capable of testing up to 12 transducer
modules connected in parallel. Three-state outputs on
the MAX1458 allow for parallel connection of transduc-
ers. The test system shown in Figure 11 includes a
dedicated test bus consisting of five wires:
Two power-supply lines
One analog output voltage line from the transducers
to a system digital voltmeter
Two serial-interface lines: DIO (input/output) and
SCLK (clock)
For simultaneous testing of more than 12 sensor mod-
ules, use buffers to prevent overloading the data bus. A
digital multiplexer controls the chip-select signal for
each transducer.
1%-Ac c urate, Digitally Trimmed
S ensor S ignal Conditioner
16
______________________________________________________________________________________
MAX1458
1
1
C
1
O
(
1
FSOTC
LIMIT
TEMP
A = 1
V
SS
+5V
OUT
V
DD
DIGITAL
INTERFACE
PGA
CS
WE
TEMP
SCLK
DIO
BDRIVE
INM
ISRC
INP
C2
0.1
μ
F
C1
0.1
μ
F
V
SS
R
ISRC
R
FTC
R
ISRC
R
FTC
128-BIT
EEPROM
V
DD
Σ
SENSOR
Figure 10. Basic Ratiometric Output Configuration
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PDF描述 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1458C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
| MAX1458CAE | 制造商:Maxim Integrated Products 功能描述:16 PINS SSOP PKG - Bulk |
| MAX14590ETA+ | 制造商:Maxim Integrated Products 功能描述:HIGH-CURRENT OVERVOLTAGE PROTECTOR WITH ADJUSTABLE OVLO - Rail/Tube |
| MAX14590ETA+T | 制造商:Maxim Integrated Products 功能描述:HIGH-CURRENT OVERVOLTAGE PROTECTOR WITH ADJUSTABLE OVLO - Tape and Reel |
| MAX14591EETA+ | 制造商:Maxim Integrated Products 功能描述:HIGH SPEED, OPEN DRAIN CAPABLE LOGIC LEVEL TRANSLATOR - Rail/Tube |
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