參數(shù)資料
型號(hào)： TLV1548MFK
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： ADC
英文描述： 8-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CQCC20
封裝： CERAMIC, LCC-20
文件頁(yè)數(shù)： 3/36頁(yè)
文件大?。?/td> 676K
代理商： TLV1548MFK
TLV1544C, TLV1544I, TLV1548C, TLV1548I, TLV1548M
LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL AND 4/8 ANALOG INPUTS
SLAS139C – DECEMBER 1996 – REVISED JANUARY 1999
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Table 5. Conversion Rate and Power Consumption Selection
CONVERSION TIME
AVAILABLE VCC
TYPICAL SUPPLY CURRENT, ICC
CONVERSION RATE
CONVERSION TIME,
tconv
AVAILABLE VCC
RANGE
INPUT DATA
OPERATING
POWER
DOWN
Fast conversion speed
7
s typ
5.5 V to 3.3 V
9h
0.6 mA typ
1.5 mA max
1
A typ
Slow conversion speed
15
s typ
5.5 V to 2.7 V
Ah
0.4 mA typ
1 mA max
1
A typ
programmable power-down state
The device is put into the power-down state by writing 8h to DATA IN. The power-up state is restored during
the next active access by pulling CS low. The conversion rate selected before the device is put into the
power-down state is not affected by the power-down mode. Power-down can be used to achieve even lower
power consumption. This is because the sustaining power (when not converting) is only 1.3 mA maximum and
standby power is only 1
A maximum. (By averaging out the power consumption can be much lower than the
1 mA peak when the conversion throughput is lower.)
Power Down
CS
EOC
ICC
DATA IN
Hi-Z
0
Supply Current
1
00 0
1 mA
(Typical Peak Supply)
0.3 mA
(Typical Sustaining)
0.0007 mA
(Typical Power Down
Supply)
Figure 3. Typical Supply Current During Conversion/Power Down
power up and initialization
After power up, if operating in DSP mode, CS and FS must be taken from high to low to begin an I/O cycle. EOC
is initially high, and the input data register is set to all zeroes. The content of the output data register is random,
and the first conversion result should be ignored. For initialization during operation, CS is taken high and
returned low to begin the next I/O cycle. The first conversion after the device has returned from the power-down
state can be invalid and should be disregarded.
When power is first applied to the device, the conversion rate must be programmed, and the internal Async Flag
must be taken low once. The rising edge of CS of the same cycle then takes Async Flag low.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLV1548MFKB 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 4/8 ANALOG INPUTS
TLV1548MJ 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 4/8 ANALOG INPUTS
TLV1548MJB 制造商:Rochester Electronics LLC 功能描述:- Bulk
TLV1548-Q1 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTER WITH SERIAL CONTROL AND 8 ANALOG INPUTS
TLV1548QDBREP 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Lo Vltg 10B 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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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