參數(shù)資料
型號(hào)： AS1531-T
廠商： AUSTRIAMICROSYSTEMS AG
元件分類： ADC
英文描述： 12-Bit, 8-Channels ADC 300ksps; 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(yè)數(shù)： 23/29頁(yè)
文件大?。?/td> 1087K
代理商： AS1531-T
www.austriamicrosystems.com
Revision 1.02
23 - 29
AS1530/AS1531
Data Sheet
- Application Information
9 Application Information
Initialization
When power is first applied to the AS1530/AS1531 internal power-on reset circuitry sets the devices for normal opera-
tion. At this point, the devices can perform data conversions with CSN held low.
Note:
The device requires 10μs after the power supplies stabilize; no conversions should be initiated during this time.
The digital output at pin DOUT will be all 0s until an analog-to-digital conversion is initiated.
Serial Interface
The AS1530/AS1531 fully support SPI, QSPI, and Microwire interfaces. For SPI, select the correct clock polarity and
sampling edge in the SPI control registers (set CPOL = 0 and CPHA = 0).
Note:
Microwire, SPI, and QSPI all transmit a byte and receive a byte at the same time.
Using the circuit shown in
Figure 33 on page 24
, the simplest software interface requires only three 8-bit transfers to
perform a conversion (one 8-bit transfer to configure the AS1530/AS1531, and two more 8-bit transfers to clock out the
12-bit conversion result).
Serial Interface Configuration
The following steps describe how to configure the serial interface:
1. Confirm that the CPU serial interface is in master mode (so the CPU generates the serial clock).
2. Choose a clock frequency from 500kHz to 6.4MHz (AS1530) or 4.8MHz (AS1531).
3. Set up the control byte and call it TB1. TB1 should be in the format 1XXXXXXX binary, where the Xs indicate the
selected channel, conversion mode, and power mode.
4. Use a general-purpose I/O line on the CPU to pull CSN low.
5. Transmit TB1 and simultaneously receive a byte (RB1). Ignore this byte.
6. Transmit a byte of all zeros ($00
h
) and simultaneously receive byte RB2.
7. Transmit a byte of all zeros ($00
h
) and simultaneously receive byte RB3.
8. Pull CSN high.
Bytes RB2 and RB3 (see
Figure 21 on page 17
) contain the results of the conversion, padded with three leading zeros
and one trailing zero. The total conversion time is a function of the serial-clock frequency and the amount of idle time
between 8-bit transfers. To avoid excessive track/hold droop, make sure the total conversion time does not exceed
120μs.
相關(guān)PDF資料
PDF描述
AS1530-T 12-Bit, 8-Channels ADC 400ksps; Package Type: TSSOP-20
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
AS1533-T 功能描述:IC ADC 12BIT 4CH 300K 16-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(gè)單端，單極
AS1534 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:12-bit, 8-Channel, Low-Power, 200ksps A/D Converter
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