参数资料
型号: TLC1514IPWR
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 4-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
封装: GREEN, PLASTIC, TSSOP-16
文件页数: 26/37页
文件大小: 572K
代理商: TLC1514IPWR
TLC1514, TLC1518
5-V, 10-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN
SLAS252 – DECEMBER 1999
32
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
1000000000
0111111111
0000000010
0000000001
0000000000
1111111110
0
0.00976
2.4937
2.4986
2.5034
Digital
Output
Code
1000000001
1111111101
1111111111
4.9874
4.9922
4.9871
512
511
2
1
0
1022
Step
513
1021
1023
0.00244
VI – Analog Input Voltage – V
VZT =VZS + 1/2 LSB
VZS
See Notes A and B
4.9898
0.00488
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 2.44 mV, and the transition to full scale (VFT) is 4.9898 V, 1 LSB = 4.88 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 36. Ideal 10-Bit ADC Conversion Characteristics
GND
CS
XF
TMS320 DSP
TLC1514/
TLC1518
SDI
SDO
SCLK
INT
TXD
RXD
CLKR
BIO
10 k
vcc
AIN
VDD
FSR
FS
CLKX
FSX
Figure 37. Typical Interface to a TMS320 DSP
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