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| 型號： | AD7651ACPZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 3/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 16BIT UNIPOLAR 48LFCSP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | PulSAR® |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 100k |
| 數(shù)據(jù)接口： | 串行，并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 45mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 48-LFCSP-VQ（7x7） |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 2 個(gè)偽差分，單極 |
| 配用： | EVAL-AD7651CBZ-ND - BOARD EVALUATION FOR AD7651 |
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AD7651
DEFINITIONS 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 LSB before
the first code transition. Positive full scale is defined as a level
1 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 011…10 to 011…11 in twos
complement coding) should occur for an analog voltage 1 LSB
below the nominal full scale (2.49994278 V for the 0 V to 2.5 V
range). The full-scale error is the deviation of the actual level of
the last transition from the ideal level.
Unipolar Zero Error
The first transition should occur at a level LSB above analog
ground (19.073 V for the 0 V to 2.5 V range). Unipolar zero
error is the deviation of the actual transition from that point.
Spurious-Free Dynamic Range (SFDR)
SFDR is 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:
ENOB = (S/[N+D]dB – 1.76)/6.02
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 signal is held for a conversion.
Transient Response
Transient response is the time required for the AD7651 to
achieve its rated accuracy after a full-scale step function is
applied to its input.
Overvoltage Recovery
Overvoltage recovery is the time required for the ADC to
recover to full accuracy after an analog input signal 150% of the
full-scale value is reduced to 50% of the full-scale value.
Reference Voltage Temperature Coefficient
Reference voltage temperature coefficient is the change of
internal reference voltage output voltage V over the operating
temperature range and normalized by the output voltage at
25°C, expressed in ppm/°C. The equation follows:
6
1
2
1
2
10
)
–
(
)
C
25
(
)
(
–
)
(
)
/
(
×
°
=
°
T
V
T
V
T
V
C
ppm
TCV
where:
V(25°C) = V at +25°C
V(T2) = V at Temperature 2 (+85°C)
V(T1) = V at Temperature 1 (–40°C)
Rev. 0 | Page 11 of 28
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| AD7651ACPZRL | 功能描述:IC ADC 16BIT UNIPOLAR 48LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:PulSAR® 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)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(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個(gè)單端，單極；1 個(gè)單端，雙極 |
| AD7651AST | 制造商:Rochester Electronics LLC 功能描述:16-BIT 100KSPS SAR UNIPOLAR ADC W/REEL - Tape and Reel 制造商:Analog Devices 功能描述: 制造商:Analog Devices 功能描述:16BIT SAR ADC REF 7651 LQFP48 |
| AD7651ASTRL | 制造商:Analog Devices 功能描述: |
| AD7651ASTZ | 功能描述:IC ADC 16BIT 100KSPS 48-LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:PulSAR® 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)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(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個(gè)單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| AD7651ASTZ | 制造商:Analog Devices 功能描述:16BIT SAR ADC REF 7651 LQFP48 |
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