參數(shù)資料
型號(hào): TLC3578IPWG4
廠(chǎng)商: TEXAS INSTRUMENTS INC
元件分類(lèi): ADC
英文描述: 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
封裝: GREEN, PLASTIC, TSSOP-24
文件頁(yè)數(shù): 10/49頁(yè)
文件大小: 1137K
代理商: TLC3578IPWG4
TLC3574, TLC3578, TLC2574, TLC2578
5V ANALOG, 3/5V DIGITAL, 14/12BIT, 200KSPS, 4/8CHANNEL
SERIAL ANALOGTODIGITAL CONVERTERS WITH ±10V INPUTS
SLAS262C OCTOBER 2000 REVISED MAY 2003
18
WWW.TI.COM
analog input mode (continued)
When pseudodifferential mode is selected, only two analog input channel pairs are available for the TLC3574
and TLC2574 and four channel pairs for the TLC3578 and TLC2578, because half the inputs are used as the
negative input.
Analog
MUX
SAR
ADC
X8
A0
A1
A2
A3
A4
A5
A6
A7
X4
A0
A1
A2
A3
X
X8
A0(+) Pair A
A1()
A2(+) Pair B
A3()
A4(+) Pair C
A5()
A6(+) Pair D
A7()
X4
A0(+) Pair A
A1()
A2(+) Pair B
A3()
Analog
MUX
SAR
ADC
Single Ended
Pseudodifferential
TLC3578 and TLC2578
TLC3574 and TLC2574
Figure 7. Pin Assignment of Single-Ended Input vs Pseudodifferential Input
reference voltage
The external reference is applied to the reference-input pins (REFP and REFM). REFM should connect to
analog ground. REFP is 4 V. Install decoupling capacitors (10
F in parallel with 0.1 F) between REFP and
REFM, and compensation capacitors (0.1
F) between COMP and AGND.
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
BOB
2s Complement
BTC
VFS = 10 V
9.99939 V
9.99878 V
9.99756 V
0.61 mV
9.99756 V
0.61 mV
VBZS = 0.0 V
VFS+ = 10 V
1LSB = 1.22 mV
Bipolar Analog Input Voltage
Step
Digital
Output
Code
相關(guān)PDF資料
PDF描述
TLC3578IPWRG4 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC3578IPWR 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC3574IPWG4 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLC2574IPWG4 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLC3578IDWR 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
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