參數(shù)資料
型號： AS1530-T
廠商： AUSTRIAMICROSYSTEMS AG
元件分類： ADC
英文描述： 12-Bit, 8-Channels ADC 400ksps; Package Type: TSSOP-20
中文描述： 12位，單電源，低功耗，400/300ksps的A / D轉(zhuǎn)換器
封裝： TSSOP-20
文件頁數(shù)： 21/29頁
文件大小： 1087K
代理商： AS1530-T
www.austriamicrosystems.com
Revision 1.02
21 - 29
AS1530/AS1531
Data Sheet
- Detailed Description
A 0.01μF bypass capacitor plus the internal 17k
Ω
reference resistor at REFADJ form an R/C filter with a 170μs time
constant. To achieve full 12-bit accuracy, 9 time constants (1.8ms) are required after power-up if the bypass capacitor
is fully discharged between conversions. Waiting this 1.8ms in reduced-power mode instead of normal operation mode
can further reduce power consumption. This is achieved by using the sequence shown in
Figure 30 on page 21
.
Figure 31 on page 21
shows the AS1531 power consumption for conversions using full power-down mode (PD1 = PD0
= 0
(see Table 12)
, an external reference, and the maximum clock speed. One dummy conversion to power-up the
device is required, but no wait-time is necessary to start the second conversion, thereby achieving lower power con-
sumption up to the full sampling rate.
Figure 30. Full Power-Down Timing Waveforms (AS1531)
Figure 31. Average Supply Current vs. Sampling Rate (AS1531, FULLPD, and External Reference)
Reference
The AS1530/AS1531 can operate with the internal or an external reference.
Internal Reference
The internal reference is selected by placing a capacitor between REFADJ and GND. The internally trimmed 1.22V
bandgap voltage available at REFADJ is buffered with a gain of 2.045V/V to pin REF, where 2.5V are available. A
decoupling capacitor is needed at pin REF.
DIN
1
0
1
1
1
0
0
0
0
Full Power-
Down
Reduced-
Power Mode
REF
1
REFADJ
I
VDD1
+I
VDD2
+I
VDD3
Full Power-
Down
1.22V
2.5V
2.2mA
2.2mA
2.2mA
2.5V
1.22V
0mA
0mA
0.4mA
γ
= R/C = 17
Ω
k x 0.01μF
Full Power-
Down
Normal Mode
Conversion
Normal Mode
Dummy
Conversion
Reduced
Power Mode
Normal Mode
Conversion
Full Power-
Down
1 Channel
0.1
100
100000
0.001
0.01
0.1
1
10
100
Sampling Rate (ksps)
S
.
相關(guān)PDF資料
PDF描述
AS1532-T 12-Bit, 4-CH, ADC 400ksps; Package Type: TSSOP-16
AS1533-T 12-Bit, 4-CH, ADC, 300ksps; Package Type: TSSOP-16
AS1538-BTST 12-bit, 8-CH, 50ksps ADC, I2C; Package Type: TSSOP-16
AS1539-BTST 10-bit, 8-CH, 50ksps ADC, I2C; Package Type: TSSOP-16; Temperature Range: -40 - +85 °C; Output Interface: I"C; Supply Voltage: 2,70-5,50
AS1542-BTST 12-bit 16-CH 1Msps w Sequencer; Package Type: TSSOP-28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AS1531 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 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
AS1531-T 功能描述:IC ADC 12BIT 8CH 300K 20-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:250 系列:- 位數(shù):12 采樣率（每秒）:1.8M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:1.82W 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-LQFP 供應(yīng)商設(shè)備封裝:48-LQFP（7x7） 包裝:管件 輸入數(shù)目和類型:2 個單端，單極
AS1532 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:12-Bit, Single-Supply, Low-Power, 400/300ksps, 4-Channel A/D Converters
AS1532-T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 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
AS1533 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:12-Bit, Single-Supply, Low-Power, 400/300ksps, 4-Channel A/D Converters
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