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參數(shù)資料
| 型號(hào)： | ALD500RAU-20QEI |
| 廠商： | Advanced Linear Devices, Inc. |
| 英文描述： | PRECISION INTEGRATING ANALOG PROCESSOR WITH PRECISION VOLTAGE REFERENCE |
| 中文描述： | 精密集成了模擬處理器，高精度電壓基準(zhǔn) |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 93K |
| 代理商： | ALD500RAU-20QEI |
ALD500RAU/ALD500RA/ALD500R
Advanced Linear Devices
7
1
I
B
Bias circuit pin. Connect a 0.1
μ
F capacitor from this pin to V- to minimize noise.
2
C
INT
Integrator capacitor connection.
3
V-
Negative power supply.
4
C
AZ
The Auto-zero capacitor connection.
5
BUF
The Integrator resistor buffer connection.
6
AGND
This pin is analog ground.
7
C
-REF
Negative reference capacitor connection.
8
C
+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
C
OUT
Comparator output. C
OUT
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 C
OUT
signals the processor
that the Deintegrate phase is completed. C
OUT
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
C
S
Chip select - power down pin.
Logic 1 = power on. Logic 0 = power down.
Switch Functions
Input
Connect
Reference Input
Polarity
Auto Zero
Reference
Sample
V
IN
=AGND
System
Offset
Conversion
Phase
Control
Logic
SW
IN
SW
+R or
SW
-R
SW
AZ
SW
R
SW
G
SW
S
Auto Zero
A = 0, B = 1
Open
Open
Closed
Closed
Closed
Open
Input Signal
Integration
A = 1, B = 0
Closed
Open
Open
Open
Open
Open
Reference Voltage
Deintegration
A = 1, B = 1
Open
Closed*
Open
Open
Closed
Open
Integrator
Output Zero
A = 0, B = 0
Open
Open
Open
Closed
Closed
Closed
*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-20QEL | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18 Bit A/D w20ppm 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ALD500RAU-20SE | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18 Bt A/D w20 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ALD500RAU-20SEI | 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-20SEIL | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18 Bt A/D w20 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ALD500RAU-20SEL | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18 Bt A/D w20 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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