1IB Bias circuit pin. Connect a 0.1 F capacitor fr" />
參數(shù)資料
型號： ALD500RA-20SEL
廠商： Advanced Linear Devices Inc
文件頁數(shù)： 10/12頁
文件大?。?/td> 0K
描述： IC ADC 17BIT 20SOIC
標準包裝： 36
位數(shù)： 17
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 10mW
電壓電源： 雙 ±
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 20-SOIC
供應(yīng)商設(shè)備封裝： 20-SOIC
包裝： 管件
輸入數(shù)目和類型： *
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ALD500RAU 制造商:ALD 制造商全稱:Advanced Linear Devices 功能描述:PRECISION INTEGRATING ANALOG PROCESSOR WITH PRECISION VOLTAGE REFERENCE
ALD500RAU-10PE 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18 Bt A/D w10 ppm VR RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ALD500RAU-10PEL 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18 Bt A/D w10 ppm VR RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ALD500RAU-10QE 制造商:ALD 制造商全稱:Advanced Linear Devices 功能描述:PRECISION INTEGRATING ANALOG PROCESSOR WITH PRECISION VOLTAGE REFERENCE
ALD500RAU-10QEL 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18 Bit A/D w10ppm VR RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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