参数资料
型号: THS1240C
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 1-CH 12-BIT DELTA-SIGMA ADC, PARALLEL ACCESS, PQFP48
封装: POWER, PLASTIC, TQFP-48
文件页数: 17/19页
文件大小: 424K
代理商: THS1240C
THS1240
12-BIT 40 MSPS IF SAMPLING COMMUNICATIONS
ANALOG-TO-DIGITAL CONVERTER
SLAS279A – JUNE 2000 – REVISED AUGUST 2000
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
V(VIN)
CLK+
Digital Output
(D0 – D11)
Data N–7
tp(H)
tP(L)
td(A)
Sample N
tc
td(O)
td(Pipe)
Data N–6
Data N–5
Data N–4
Data N–3
Data N–2
Data N–1
Data N
Data N+1
Data N+2
Figure 1. Timing Diagram
equivalent circuits
Figure 2. References
Figure 3. Analog Input Stage
φ1
φ1
φ2
VCM
AVDD
VCM
AVSS
600
600
VREFOUT+
VREFOUT–
R2
R1
BAND
GAP
VIN+
VIN–
1 k
Figure 4. Clock Inputs
DVDD
CLK+
DVSS
R1
5 k
R2
5 k
GND
VDD
DVDD
R1
5 k
R2
5 k
CLK–
DVSS
To
Timing
Circuits
DRVSS
DRVDD
10
D0–D11
Figure 5. Digital Outputs
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