參數(shù)資料
型號： TLC2558IPW
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝： GREEN, PLASTIC, TSSOP-20
文件頁數(shù)： 25/48頁
文件大小： 1072K
代理商： TLC2558IPW
TLC2554, TLC2558
5-V, 12-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN
SLAS220A –JUNE 1999
31
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
1000000000
0111111111
0000000010
0000000001
0000000000
1111111110
0
0.0024
2.4564
2.4576
2.4588
Digital
Output
Code
1000000001
1111111101
1111111111
4.9056
4.9104
4.9152
2048
2047
2
1
0
4094
Step
2049
4093
4095
0.0006
VI – Analog Input Voltage – V
VZT =VZS + 1/2 LSB
VZS
See Notes A and B
4.9134
0.0012
VFT = VFS – 1/2 LSB
VFS
VFS Nom
NOTES: A. This curve is based on the assumption that Vref+ and Vref– have been adjusted so that the voltage at the transition from digital 0 to
1 (VZT) is 0.0006 V, and the transition to full scale (VFT) is 4.9134 V, 1 LSB = 1.2 mV.
B. The full scale value (VFS) is the step whose nominal midstep value has the highest absolute value. The zero-scale value (VZS) is
the step whose nominal midstep value equals zero.
Figure 35. Ideal 12-Bit ADC Conversion Characteristics
GND
CS
XF
TMS320 DSP
TLC2554/
TLC2558
SDI
SDO
SCLK
INT
TXD
RXD
CLKR
BIO
10 k
vcc
AIN
VDD
FSR
FS
CLKX
FSX
Figure 36. Typical Interface to a TMS320 DSP
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TLC2558IPWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-bit 400 KSPS 8-Ch Serial w/Powerdown 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC2558IPWRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-bit 400 KSPS 8-Ch Serial w/Powerdown 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC2558QDW 制造商:Texas Instruments 功能描述:12-BIT, 400 KSPS ADC, 8-CH. SERIAL WITH POWERDOWN - Rail/Tube
TLC2558QDWR 制造商:Texas Instruments 功能描述:12-BIT, 400 KSPS ADC, 8-CH. SERIAL WITH POWERDOWN - Tape and Reel
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