參數(shù)資料
型號: TLC3544IPWRG4
廠商: Texas Instruments, Inc.
英文描述: 5-V ANALOG, 3-/5-V DIGITAL, 14-BIT, 200-KSPS, 4-/8-CHANNELS SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH 0-5 V (PSEUDODIFFERENTIAL) INPUTS
中文描述: 5 - V模擬,3-/5-V數(shù)字,14位,200 kSPS的,4-/8-CHANNELS串行模數(shù)位0-5五(擬微分)輸入變換器
文件頁數(shù): 29/40頁
文件大?。?/td> 790K
代理商: TLC3544IPWRG4
TLC3544, TLC3548
5-V ANALOG, 3-/5-V DIGITAL, 14-BIT 200-KSPS, 4-/8-CHANNELS SERIAL
ANALOG-TO-DIGITAL CONVERTERS WITH 0-5 V (PSEUDODIFFERENTIAL) INPUTS
SLAS266C
OCTOBER 2000
REVISED MAY 2003
29
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FIFO operation (continued)
The device has an 8-level FIFO that can be programmed for different thresholds. An interrupt is sent to the host
after the preprogrammed threshold is reached. The FIFO is used to store conversion results in mode 01, 10,
and 11, from either a fixed channel or a series of channels according to a preprogrammed sweep sequence.
For example, an application may require eight measurements from channel 3. In this case, if the threshold is
set to full, the FIFO is filled with 8 data conversions sequentially taken from channel 3. Another application may
require data from channel 0, 2, 4, and 6 in that order. The threshold is set to 1/2 full and sweep sequence is
selected as 0
2
4
6
0
2
4
6. An interrupt is sent to the host as soon as all four data conversions are in the
FIFO. The FIFO is reset after a power on and a WRITE CFR operation. The contents of the FIFO are retained
during autopower down and software power down.
Powerdown:
The device has two power-down modes.
AutoPower-Down Mode:
The device enters the autopower-down state at the end of a conversion.
In autopower-down, the power consumption reduces to about 1.8 mA when an internal reference is selected.
The built-in reference is still on to allow the device to resume quickly. The resumption is fast enough for use
between cycles. An active CS, FS, or CSTART resumes the device from power-down state. The power current
is 20
μ
A when an external reference is programmed and SCLK stops.
Software Power-Down Mode:
Writing 8000h to the device puts the device into the software power-down state,
and the entire chip (including the built-in reference) is powered down. The power current is reduced to about
20
μ
A if SCLK stops.
Deselect CS to save power once the device is in the software power-down mode. An active
CS, FS, or CSTART restores the device. There is no time delay when an external reference is selected.
However, if an internal reference is used, it takes about 20 ms to warm up.
The configuration register is not affected by any of the power-down modes but the sweep operation sequence
must be started over again. All FIFO contents are retained in both power-down modes.
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參數(shù)描述
TLC3545 制造商:TI 制造商全稱:Texas Instruments 功能描述:5-V. LOW POWER, 14-BIT, 200-KSPS SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO-POWER DOWN
TLC3545EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 TLC3545 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
TLC3545ID 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 200KSPS Serial Out 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
TLC3545IDG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 200KSPS Serial Out 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
TLC3545IDGK 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 14-Bit 200KSPS Serial Out 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