参数资料
型号: TLC3548CDWRG4
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
封装: GREEN, PLASTIC, SOIC-24
文件页数: 8/44页
文件大小: 1000K
代理商: TLC3548CDWRG4
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
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detailed description (continued)
ideal conversion characteristics
00000000000000
00000000000001
00000000000010
01111111111111
10000000000000
10000000000001
11111111111111
11111111111110
11111111111101
16381
16383
16382
8192
8193
8191
0
1
2
01111111111111
01111111111110
01111111111101
00000000000001
00000000000000
11111111111111
10000000000010
10000000000001
10000000000000
Binary
USB
2s Complement
BTC
1.999878 V
2.000122 V
3.999512 V
Unipolar Analog Input Voltage
Step
Digital
Output
Code
VREFM = VZS = 0 V
122
V
488
V
244
V
VFS – 1 LSB = 3.999756 V
1 LSB = 244
V
VMS = (VFS + VZS)/2 = 2 V
VREFP = VFS = 4 V
data format
INPUT DATA FORMAT (BINARY)
OUTPUT DATA FORMAT READ CONVERSION/FIFO
MSB
LSB
MSB
LSB
ID[15:12]
ID[11:0]
OD[15:2]
OD[1:0]
Command
Configuration data field or filled with zeros
Conversion result
Don’t Care
14-BIT
Unipolar Straight Binary Output: (USB)
Zero-scale code = VZS = 0000h, Vcode = VREFM
Mid-scale code = VMS = 2000h, Vcode = VREFP/2
Full-scale code = VFS = 3FFFh, Vcode = VREFT – 1 LSB
UnIpolar Input, Binary 2’s Complement Output: (BTC)
Zero-scale code = VZS = 2000 h, Vcode = VREFM
Mid-scale code = VMS = 0000h, Vcode = (VREFP – VREFM)/2
Full-scale code = VFS = 1FFFh, Vcode = VREFP – 1 LSB
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