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參數(shù)資料
| 型號(hào)： | SPT7935SCT |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | 1-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PQFP44 |
| 封裝： | TQFP-44 |
| 文件頁(yè)數(shù)： | 2/8頁(yè) |
| 文件大小： | 77K |
| 代理商： | SPT7935SCT |
SPT
2
6/7/99
SPT7935
ELECTRICAL SPECIFICATIONS
TA=TMIN-TMAX , VDD
1=VDD2=VDD3=3.3 V, VREF-=1.15 V, VREF+=2.15 V, Common Mode Voltage=1.65 V, fCLK=20 MSPS, Bias 1=90 A,
Bias 2=9.5
A, Differential Input, Duty Cycle=50%, unless otherwise specified.
TEST
SPT7935
PARAMETERS
CONDITIONS
LEVEL
MIN
TYP
MAX
UNITS
DC Accuracy
Resolution
12
Bits
Differential Linearity
V
±0.6
LSB
Integral Linearity
V
±3.0
LSB
Common Mode Rejection Ratio (CMRR)
V
55
dB
No Missing Codes
VI
Guaranteed
Analog Input
Input Voltage Range (Differential)
IV
±0.6
±1.0
±1.7
V
Common Mode Input Voltage
IV
1.2
1.65
1.9
V
Input Capacitance
V
1.4
pF
Input Bandwidth (Large Signal)
V
120
MHz
Offset (Mid-scale)
V
±1.0
% FSR
Gain Error
V
0.3
% FSR
Reference Voltages
Reference Input Voltage Range
IV
0.6
1.0
1.7
V
(VREF+ - VREF-)
Negative Reference Voltage (VREF-)
IV
1.15
V
Positive Reference Voltage (VR EF+)
IV
2.15
V
Common Mode Output Voltage (VCM)IO = -1 A
VI
1.3
1.65
1.8
V
Switching Performance
Maximum Conversion Rate
VI
20
MHz
Pipeline Delay
IV
7.5
Clocks
(See Timing Diagram)
Aperture Delay Time (TAP)V
5
ns
Aperture Jitter Time
V
10
ps-rms
Dynamic Performance
Effective Number of Bits
fIN = 5.0 MHz
VI
9.2
9.8
Bits
fIN = 10.0 MHz
V
9.0
Bits
ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur)1 25
°C
Supply Voltages
VDD1 .....................................................................-0.5 V to +6 V
VDD2 .....................................................................-0.5 V to +6 V
VDD3 .....................................................................-0.5 V to +6 V
Input Voltages
Analog Input .................................. -0.5 V to (VDD +0.5 V)
Digital Input ................................... -0.5 V to (VDD +0.5 V)
VREF+ ........................................... -0.5 V to (VDD +0.5 V)
VREF- ............................................ -0.5 V to (VDD +0.5 V)
CLK ............................................... -0.5 V to (VDD +0.5 V)
Temperature
Operating Temperature ................................. 0 to +70
°C
Storage Temperature ................................ -65 to +125
°C
Note:
1.
Operation at any Absolute Maximum Rating is not implied. See Electrical Specifications for proper nominal
applied conditions in typical applications.
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參數(shù)描述 |
|---|---|
| SPT7935SCT_D | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| SPT7935SCTX | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| SPT7935SIT | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| SPT7935SITX | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| SPT7936 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:12-BIT, 28 MSPS SAMPLING A/D CONVERTER |
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