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參數資料
| 型號： | TMC1175AC3F20 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS |
| 文件頁數： | 4/20頁 |
| 文件大小： | 427K |
| 代理商： | TMC1175AC3F20 |
TMC1175A
PRODUCT SPECIFICATION
12
REV. 1.3.3 2/28/02
Typical Performance Characteristics
30
25
15
10
I DD
(mA)
5
0
010
20
30
40
20
60
50
30
20
SFDR
10
fs = 20 Msps
fs = 30 Msps
fs = 40 Msps
0
02
4
6
8
10
12
40
fs = 20 Msps
fs = 30 Msps
fs = 40 Msps
50
40
20
SNR
10
0
02
4
6
8
10
12
30
50
30
20
SNR
10
fs = 20 Msps
fs = 33 Msps
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
40
Figure 8. Typical IDD vs fS
Figure 9. Typical SFDR vs fIN and fS
Figure 10. Typical SNR vs fIN and fS
Figure 11. Typical SNR vs Full Scale Input Range
Applications Discussion
The circuit in Figure 12 employs a band-gap reference to
generate a variable RT reference voltages for the
TMC1175A as well as a bias voltage to offset the wideband
input amplier to mid-range. An "offset adjust"
is also shown for varying the mid-range voltage level.
The operational amplier in the reference circuitry is a
standard 741-type.
The voltage reference at RT can be adjusted from 0.0 to 2.4
volts while RB is grounded. Diodes are used to restrict the
wideband amplier output to between -0.7V and VDD
+0.7V. Diode protection is good practice to limit the analog
input voltage at VIN to the safe operating range.
The circuit in Figure 13 shows self-bias of RT and RB by
connection to VR+ and VR-. This sets up a 0.6 to 2.6 Volt
input range for VIN. The input range is susceptible to power
supply variation since the voltages on RT and RB are directly
derived from VDDA. The video input is AC-coupled and
biased at a adjustable midpoint of the A/D input range.
This circuit offers the advantage of minimum support
circuitry for the most cost-sensitive applications.
In Figure 14, an external band-gap reference sets RT to +1.2
Volts while RB is grounded. The internal pull-up resistor,
R+, provides the bias current for the band-gap reference. The
A/D converter input is biased to the mid-point of the input
range.
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相關代理商/技術參數 |
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| TMC1175AM7C20 | 功能描述:視頻模擬/數字化轉換器集成電路 Mixed Signal FG RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數量:1 ADC 輸入端數量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
| TMC1175AM7C20_Q | 功能描述:視頻模擬/數字化轉換器集成電路 Mixed Signal FG RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數量:1 ADC 輸入端數量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
| TMC1175AM7C20T | 功能描述:視頻模擬/數字化轉換器集成電路 8Bit Video Converter 20MSPS a/D RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數量:1 ADC 輸入端數量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
| TMC1175AM7C30 | 功能描述:視頻模擬/數字化轉換器集成電路 8Bit Video Converter 3MSPS a/D RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數量:1 ADC 輸入端數量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
| TMC1175AM7C30_Q | 功能描述:視頻模擬/數字化轉換器集成電路 8Bit Video Converter 3MSPS a/D RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數量:1 ADC 輸入端數量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
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