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参数资料
| 型号： | DS2450 |
| 英文描述： | 1-Wire Quad A/D Converter |
| 中文描述： | 四路、1-Wire A/D转换器 |
| 文件页数： | 1/24页 |
| 文件大小： | 523K |
| 代理商： | DS2450 |
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FEATURES
§
Four high-impedance inputs to measure
analog voltages over the 1-Wire bus
§
User programmable input range (2.56V,
5.12V), resolution (1 to 16 bits) and alarm
thresholds
§
5V, single supply operation
§
Very low power: 2.5 mW active, 25
μ
W idle
§
Built-in multidrop controller allows multiple
DS2450’s to be identified and operated on a
common 1-Wire bus
§
Responds to Conditional Search if the analog
voltage crosses the alarm thresholds
§
Channels not used as analog input can serve
as open drain digital outputs for closed-loop
control
§
Directly connects to a single port pin of a
microprocessor and communicates at up to
16.3k bits per second
§
Overdrive mode boosts communication speed
to 142k bits per second
§
On-chip 16-bit CRC-generator for
safeguarding data transfers
§
Unique, factory-lasered and tested 64-bit
registration number (8-bit family code + 48-
bit serial number 8-bit CRC tester) assures
absolute traceability because no two parts are
alike
§
8-bit family code specifies device
communication requirements to bus master
§
Operating temperature range from -40
°
C to
+85
°
C
§
Compact, low cost 8-pin SOIC surface mount
package
PIN ASSIGNMENT
PIN DESCRIPTION
V
CC
NC
DATA
GND
AIN-A
AIN-B
AIN-C
AIN-D
4.5 to 5.5 Volts
Do Not Connect
1-Wire Bus
Ground
Analog Input A
Analog Input B
Analog Input C
Analog Input D
ORDERING INFORMATION
DS2450S
8-pin SOIC
DESCRIPTION
The DS2450 1-Wire Quad A/D Converter is based on a successive-approximation analog to digital
converter with a four to one analog multiplexer. Each input channel has its own register set to store the
input voltage range, resolution, and alarm threshold values as well as flags to enable participation of the
device in the conditional search if the input voltage leaves the specified range. Two alarm flags for each
channel indicate if the voltage measured was too high or too low without requiring the bus master to do
DS2450
1-Wire
TM
Quad A/D Converter
www.dalsemi.com
V
CC
NC
DATA
GND
AIN-A
AIN-B
AIN-C
AIN-D
2
3
4
8
7
6
5
1
8-PIN SOIC (208 MIL)
相关PDF资料 |
PDF描述 |
|---|---|
| DS2450S | 1-Wire Quad A/D Converter |
| DS2480 | Serial 1.Wire Line Driver |
| DS2480S | Serial 1.Wire Line Driver |
| DS2490 | USB to 1-Wire Bridge Chip |
| DS2490S | USB to 1-Wire Bridge Chip |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2450S | 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/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 |
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