- 您現在的位置：買賣IC網 > PDF目錄373911 > AD7655ASTRL (ANALOG DEVICES INC) Low Cost 4-Channel 1 MSPS 16-Bit ADC PDF資料下載
參數資料
| 型號： | AD7655ASTRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | Low Cost 4-Channel 1 MSPS 16-Bit ADC |
| 中文描述： | 4-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP48 |
| 封裝： | SEPOSEDPAD, MS-026BBC, LQFP-48 |
| 文件頁數： | 8/20頁 |
| 文件大小： | 684K |
| 代理商： | AD7655ASTRL |
REV. 0
–8–
AD7655
PIN FUNCTION DESCRIPTIONS (continued)
Pin
Number
Mnemonic
Type
Description
34
PD
DI
Power-Down Input. When set to a logic HIGH, power consumption is reduced and conversions
are inhibited after the current one is completed.
Start Conversion. A falling edge on
CNVST
puts the internal sample/hold into the hold state and
initiates a conversion. In impulse mode (IMPULSE HIGH), if
CNVST
is held low when the
acquisition phase
(
t
8
) is complete, the internal sample/hold is put into the hold state and a
conversion is immediately started.
This input pin is used to provide a reference to the converter.
Reference Input Analog Ground
Analog Inputs
These inputs are the references applied to Channel A and Channel B, respectively.
Analog input ground senses. Allow to sense each channel ground independently.
Analog Inputs
35
CNVST
DI
37
38
39, 41
42, 43
40, 45
44, 46
REF
REFGND
INB1, INB2
REFB, REFA
INBN, INAN
INA2, INA1
AI
AI
AI
AI
AI
AI
NOTES
AI = Analog Input
DI = Digital Input
DI/O = Bidirectional Digital
DO = Digital Output
P = Power
DEFINITION OF SPECIFICATIONS
Integral Nonlinearity Error (INL)
Linearity error refers to the deviation of each individual code from
a line drawn from negative full scale through positive full scale.
The point used as negative full scale occurs 1/2 LSB before the
first code transition. Positive full scale is defined as a level 1 1/2 LSB
beyond the last code transition. The deviation is measured from the
middle of each code to the true straight line.
Differential Nonlinearity Error (DNL)
In an ideal ADC, code transitions are 1 LSB apart. Differential
nonlinearity is the maximum deviation from this ideal value. It
is often specified in terms of resolution for which no missing
codes are guaranteed.
Full-Scale Error
The last transition (from 111 . . . 10 to 111 . . . 11) should
occur for an analog voltage 1 1/2 LSB below the nominal full
scale (4.999886 V for the
0 V to
5 V range). The full-scale error
is the deviation of the actual level of the last transition from the
ideal level.
Unipolar Zero Error
In unipolar mode, the first transition should occur at a level 1/2
LSB above analog ground. The unipolar zero error is the devia-
tion of the actual transition from that point.
Spurious Free Dynamic Range (SFDR)
The difference, in decibels (dB), between the rms amplitude of
the input signal and the peak spurious signal.
Effective Number of Bits (ENOB)
ENOB
is a measurement of the resolution with a sine wave
input. It is related to
S
/(
N
+
D
) by the following formula:
[
and is expressed in bits.
Total Harmonic Distortion (THD)
THD is the ratio of the rms sum of the first five harmonic
components to the rms value of a full-scale input signal and is
expressed in decibels.
Signal-to-Noise Ratio (SNR)
SNR is the ratio of the rms value of the actual input signal to
the rms sum of all other spectral components below the Nyquist
frequency, excluding harmonics and dc. The value for SNR is
expressed in decibels.
Signal-to-(Noise + Distortion) Ratio (S/[N+D])
S/(N+D) is the ratio of the rms value of the actual input signal
to the rms sum of all other spectral components below the
Nyquist frequency, including harmonics but excluding dc. The
value for S/(N+D) is expressed in decibels.
Aperture Delay
Aperture delay is a measure of the acquisition performance and
is measured from the falling edge of the
CNVST
input to when
the input signals are held for a conversion.
Transient Response
The time required for the AD7655 to achieve its rated accuracy
after a full-scale step function is applied to its input.
ENOB
S
N
D
dB
=
+
]
(
)
)
/
–
.
1 76
/6 02
相關PDF資料 |
PDF描述 |
|---|---|
| AD7660 | Circular Connector; No. of Contacts:4; Series:D38999; Body Material:Metal; Connecting Termination:Crimp; Connector Shell Size:13; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:13-4 |
| AD7660AST | 16-Bit, 100 kSPS CMOS ADC |
| AD7660ASTRL | 16-Bit, 100 kSPS CMOS ADC |
| AD7664 | Circular Connector; No. of Contacts:4; Series:D38999; Body Material:Metal; Connecting Termination:Crimp; Connector Shell Size:13; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:13-4 |
| AD7664ASTRL | 16-Bit, 570 kSPS CMOS ADC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7655ASTZ | 功能描述:IC ADC 16BIT 1MSPS QUAD 48-LQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:PulSAR® 標準包裝:1 系列:microPOWER™ 位數:8 采樣率（每秒）:1M 數據接口:串行，SPI? 轉換器數目:1 功率耗散（最大）:- 電壓電源:模擬和數字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數目和類型:8 個單端，單極 產品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| AD7655ASTZ | 制造商:Analog Devices 功能描述:CONVERTER A/D ((NW)) |
| AD7655ASTZRL | 功能描述:IC ADC 16BIT 4CHAN 48LQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:PulSAR® 標準包裝:1,000 系列:- 位數:12 采樣率（每秒）:300k 數據接口:并聯 轉換器數目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7655SCP-EP-RL | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 16-bit Parallel/Serial 48-Pin LFCSP EP T/R 制造商:Analog Devices 功能描述:LOW COST 4-CHANNEL 1 MSPS 16-BIT ADC - Tape and Reel 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:IC ADC 16B PAR/SRL 1MSPS 48LFCSP 制造商:Analog Devices 功能描述:Analog to Digital Converters - ADC 4Ch 1MSPS 16-Bit Low Cost 制造商:Analog Devices 功能描述:CONVERTER - ADC |
| AD7656 | 制造商:AD 制造商全稱:Analog Devices 功能描述:250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC |
發布緊急采購，3分鐘左右您將得到回復。