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参数资料
| 型号： | ALD500RAU-20SEL |
| 厂商： | Advanced Linear Devices Inc |
| 文件页数： | 10/12页 |
| 文件大小： | 0K |
| 描述： | IC ADC 18BIT 20SOIC |
| 标准包装： | 36 |
| 位数： | 18 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 10mW |
| 电压电源： | 双 ± |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC |
| 供应商设备封装： | 20-SOIC |
| 包装： | 管件 |
| 输入数目和类型： | * |
ALD500RAU/ALD500RA/ALD500R
Advanced Linear Devices
7
1IB
Bias circuit pin. Connect a 0.1
F capacitor from this pin to V- to minimize noise.
2CINT
Integrator capacitor connection.
3V-
Negative power supply.
4CAZ
The Auto-zero capacitor connection.
5
BUF
The Integrator resistor buffer connection.
6
AGND
This pin is analog ground.
7C-REF
Negative reference capacitor connection.
8C+REF
Positive reference capacitor connection.
9
N/C
Internally connected. Connect to V- for normal operation.
10
N/C
Internally connected. Connect to V- for normal operation.
11
V-REF
External voltage reference (-) connection. High impedance load (
≥100M) only.
12
V+REF
External voltage reference (+) connection. High impedance load (
≥100M) only.
13
V-IN
Negative analog input.
14
V+IN
Positive analog input.
15
A
Converter phase control MSB Input.
16
B
Converter phase control LSB Input.
17
COUT
Comparator output. COUT is HIGH during the Integration phase when a positive input voltage is being integrated and
is LOW when a negative input voltage is being integrated. A HIGH-to-LOW transition on COUT signals the processor
that the Deintegrate phase is completed. COUT is undefined during the Auto-Zero phase. It should be monitored to
time the Integrator Zero phase.
18
DGND
Digital ground.
19
V+
Positive power supply.
20
CS
Chip select - power down pin. Logic 1 = power on. Logic 0 = power down.
Switch Functions
Input
Reference Input
Auto Zero
Reference
VIN=AGND
System
Connect
Polarity
Sample
Offset
Conversion
Control
Phase
Logic
SWIN
SW+R or SW-R
SWAZ
SWR
SWG
SWS
Auto Zero
A = 0, B = 1
Open
Closed
Open
Input Signal
A = 1, B = 0
Closed
Open
Integration
Reference Voltage
A = 1, B = 1
Open
Closed*
Open
Closed
Open
Deintegration
Integrator
A = 0, B = 0
Open
Closed
Output Zero
*SW+R would be closed for a positive input signal. SW-R would be closed for a negative input signal.
PIN DESCRIPTION
Pin No.
Symbol
Description
Table 1. Conversion Phase and Control Logic Internal Analog Switch Functions
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ALD500SC | 制造商:ALD 制造商全称:Advanced Linear Devices 功能描述:PRECISION INTEGRATING ANALOG PROCESSOR |
| ALD500SCL | 功能描述:模数转换器 - ADC 16 Bit A/D Processor 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 |
| ALD500SWC | 制造商:ALD 制造商全称:Advanced Linear Devices 功能描述:PRECISION INTEGRATING ANALOG PROCESSOR |
| ALD500SWCL | 功能描述:模数转换器 - ADC 16 Bit A/D Processor 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 |
| ALD514012PJ134 | 制造商:TDK-Lambda Corporation 功能描述:DC-DC LED DRIVER, 12VDC, FIVE OUTPUT 0.15A - Bulk |
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