參數(shù)資料
型號： TLV1562IPWG4
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 4-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
封裝： 0.65 MM PITCH, GREEN, TSSOP-28
文件頁數(shù)： 4/41頁
文件大小： 600K
代理商： TLV1562IPWG4
TLV1562
2.7 V TO 5.5 V, HIGH-SPEED LOW-POWER RECONFIGURABLE ANALOG-TO-DIGITAL
CONVERTER WITH 4-INPUT, DUAL S/H, PARALLEL INTERFACE, AND POWER DOWN
SLAS162 – SEPTEMBER 1998
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Table 2. Conversion Trigger Edge
CONVERSION
MODE
CONVERSION
TRIGGER
START OF
SAMPLING
START OF
CONVERSION
TIME
(INTERNAL CLK)
CONVERSION
TIME
(EXTERNAL CLK)
INTERRUPT
CANCELED
BY
DATA OUT
Mono
Interrupt
RD
WR
↑ or
2 SYSCLK from RD
↓
RD
↓
6 SYSCLK
5 SYSCLK
RD
↑
41 ns§ from INT low
CSTART
↓
CSTART
↑
6 SYSCLK
5 SYSCLK
RD
↓
41 ns§ from RD low
Dual
Interrupt
CSTART
↓
CSTART
↑
12 SYSCLK
10 SYSCLK
First RD
↓
41 ns§ from RD low
Mono
Continuous
RD
WR
↑ or
2 SYSCLK from RD
↓
RD
↓
6 SYSCLK
5 SYSCLK
N/A
41 ns§ from RD low
Dual
Continuous
RD
WR
↑ or
7 SYSCLK from RD
↓
RD
↓
12 SYSCLK
10 SYSCLK
N/A
41 ns§ from RD low
CSTART works with or without CS active.
The first sampling period starts at the last RD low of the previous cycle or WR high of the configuration cycle. RD low is the falling edge of RD
and WR high is the rising edge of the WR signal. (Minimum sample/hold amp settling time = one SYSCLK, approximately 100 ns min, at Rs
≤
1 k
).
§ Output data enable time is dependent on bus loading and supply voltage (BDVDD). For BDVDD = 5 V, the enable time is 19 ns at 25 pF, 23 ns
at 50 pF, and 25 ns at 100 pF. For BDVDD = 2.7 V, the enable time is 37 ns at 25 pF, 41 ns at 50 pF, and 56 ns at 100 pF.
The TLV1562 provides four types of conversion modes. The two interrupt-driven conversion modes are
asynchronous and are simple one-shot conversions. The auto-powerdown conversion feature can be enabled
when interrupt-driven conversion modes are used. The other two continuous conversion modes are
synchronous with the RD signal (as a clock) from the processor and are more suitable for repetitive signal
measurement. These different modes of conversion offer a tradeoff between simplicity and speed.
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TLV1570CDWG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 1.25 MSPS 8-Ch DSP 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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TLV1570CDWRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 1.25 MSPS 8-Ch DSP 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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