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参数资料
| 型号： | LMP91000SDE |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO14 |
| 封装： | LLP-14 |
| 文件页数： | 20/24页 |
| 文件大小： | 696K |
| 代理商： | LMP91000SDE |
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
Max
Units
TIA_ZV
Internal zero voltage
3 programmable percentages of VREF
20
50
67
%
3 programmable percentages of VDD
20
50
67
Internal zero voltage Accuracy
±0.04
%
RL
Programmable Load
4 programmable resistive loads
10
33
50
100
Load accuracy
5
%
PSRR
Power Supply Rejection Ratio at
RE pin
2.7
≤VDD≤5.25V Internal zero 20% VREF
80
110
dB
Internal zero 50% VREF
Internal zero 67% VREF
Temperature Sensor Specification
(Refer to Temperature Sensor Transfer Table in the Function Description section for details)
Temperature Error
TA=-40C to 85C
-3
3
°C
Sensitivity
TA=-40C to 85C
-8.2
mV/°C
Power on time
1.9
ms
External reference specification
VREF
External Voltage reference
range
1.5
VDD
V
Input impedance
10
M
Unless otherwise specified, all limits guaranteed for at T
A = 25°C, VS=(VDD – AGND), 2.7V <VS< 5.25V and AGND = DGND =0V,
VREF= 2.5V. Boldface limits apply at the temperature extremes
Symbol
Parameter
Conditions
Min
Typ
(Note 6)
Max
(Note 7)
Units
V
IH
Input High Voltage
0.7*VDD
V
IL
Input Low Voltage
0.3*VDD
V
OL
Output Low Voltage
I
OUT=3mA
0.4
V
Hysteresis (Note 14)
0.1*VDD
V
C
IN
Input Capacitance on all digital pins
0.5
pF
Timing Characteristics (Note 5)
Unless otherwise specified, all limits guaranteed for T
A = 25°C, VS=(VDD – AGND), VS=3.3V and AGND = DGND =0V, VREF=
2.5V, Internal Zero= 20% VREF. Boldface limits apply at the temperature extremes. Refer to timing diagram in Figure 1.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
f
SCL
Clock Frequency
10
100
kHz
t
LOW
Clock Low Time
4.7
s
t
HIGH
Clock High Time
4.0
s
t
HD;STA
Data valid
After this period, the first clock
pulse is generated
4.0
s
t
SU;STA
Set-up time for a repeated START condition
4.7
s
t
HD;DAT
Data hold time(Note 13)
0
ns
t
SU;DAT
Data Setup time
250
ns
t
f
SDA fall time (Note 14)
IL
≤ 3mA;
CL
≤ 400pF
250
ns
t
SU;STO
Set-up time for STOP condition
4.0
s
5
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LMP91000
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相关代理商/技术参数 |
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|---|---|
| LMP91000SDE/NOPB | 功能描述:空气质量传感器 RoHS:否 制造商:GE M&C / Telaire 类型:CO2 Module 检测灵敏度: 工作电源电压:5 V 最大工作温度:+ 50 C 最小工作温度:0 C |
| LMP91000SDEVAL | 制造商:Texas Instruments 功能描述: |
| LMP91000SDEVAL/NOPB | 功能描述:多功能传感器开发工具 GAS SENSOR AFE EVAL BOARDLMP91 RoHS:否 制造商:Texas Instruments 工具用于评估:LMP91200 接口类型:SPI 工作电压:1.8 V to 5.5 V 最大工作温度: |
| LMP91000SDX | 制造商:TI 制造商全称:Texas Instruments 功能描述:Sensor AFE System: Configurable AFE Potentiostat for Low-Power Chemical Sensing Applications |
| LMP91000SDX/NOPB | 功能描述:空气质量传感器 RoHS:否 制造商:GE M&C / Telaire 类型:CO2 Module 检测灵敏度: 工作电源电压:5 V 最大工作温度:+ 50 C 最小工作温度:0 C |
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