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参数资料
| 型号： | DS2450S |
| 英文描述： | 1-Wire Quad A/D Converter |
| 中文描述： | 1线四通道A / D转换器 |
| 文件页数： | 24/24页 |
| 文件大小： | 523K |
| 代理商： | DS2450S |
DS2450
24 of 24
102199
AC ELECTRICAL CHARACTERISTICS
OVERDRIVE SPEED
PARAMETER
Time Slot
Write 1 Low Time
Write 0 Low Time
Read Low Time
Read Data Valid
Release Time
Read Data Setup
Recovery Time
Reset Time High
Reset Time Low
Presence Detect High
Presence Detect Low
(V
PUP
=4.0V to 6.0V; -40°C to +85°C)
MIN
TYP
MAX
6
16
1
2
6
16
1
2
Exactly 2
0
1.5
4
1
1
48
48
80
2
6
8
24
SYMBOL
t
SLOT
t
LOW1
t
LOW0
t
LOWR
t
RDV
t
RELEASE
t
SU
t
REC
t
RSTH
t
RSTL
t
PDH
t
PDL
UNITS
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
NOTES
4
AC ELECTRICAL CHARACTERISTICS
(V
PUP
or V
CC
=5V
±
10%; -40
°
C to +85
°
C)
PARAMETER
SYMBOL
MIN
Sample & Hold Aperture
t
SH
TYP
20
MAX
UNITS
μ
s
μ
V
RMS
LSB
NOTES
Equivalent Input Noise
V
INOISE
t.b.d.
Total Conversion Error
N
ERR
±
1/2
9
NOTES:
1.
All voltages are referenced to ground.
2.
V
PUP
= external pullup voltage.
3.
Input load is to ground.
4.
Read data setup time refers to the time the host must pull the 1-Wire bus low to read a bit. Data is
guaranteed to be valid within 1
μ
s of this falling edge.
5.
Capacitance on the data pin could be 800 pF when power is first applied. If a 5 k
resistor is used to
pull up the data line to V
PUP
, 5
μ
s after power has been applied the parasite capacitance will not affect
normal communications.
6.
The reset low time (t
RSTL
) should be restricted to a maximum of 960
μ
s, to allow interrupt signaling,
otherwise, it could mask or conceal interrupt pulses.
7.
Measured with V
CC
= 5.0V supply and 1-Wire input open.
8.
Measured with V
CC
= 5.0V supply, 1-Wire input open and analog circuitry inactive.
9.
At 8-bit resolution regardless of range and temperature; includes offset, non-linearity and noise.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2450S/T&R | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| DS2450S+ | 功能描述:模数转换器 - ADC Quad 1-Wire RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| DS2450S+ | 制造商:Maxim Integrated Products 功能描述:SEMICONDUCTOR ((NW)) |
| DS2450S+T&R | 制造商:Maxim Integrated Products 功能描述:IC CONVERTER A/D QUAD 1-W 8-SOIC |
| DS2450S+T&R | 功能描述:模数转换器 - ADC Quad 1-Wire RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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