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參數(shù)資料
| 型號： | AD7651 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:D38999 Series III; No. of Contacts:4; Connector Shell Size:13; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight RoHS Compliant: No |
| 中文描述： | 16位1 MSPS的特區(qū)單極型ADC檔 |
| 文件頁數(shù)： | 9/23頁 |
| 文件大小： | 336K |
| 代理商： | AD7651 |
REV. PrA
PRELIMINARY TECHNICAL DATA
AD7667
–9–
DEFINIT ION OF SPECIFICAT IONS
INT EGRAL NONLINEARIT Y ERROR (INL)
Linearity error refers to the deviation of each individual code
from a line drawn from “negative full scale” through “positive full
scale.” T he 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. T he deviation is
measured from the middle of each code to the true straight line.
DIFFERENT IAL NONLINEARIT Y ERROR (DNL)
In an ideal ADC, code transitions are 1 LSB apart. Differen-
tial nonlinearity is the maximum deviation from this ideal
value. It is often specified in terms of resolution for which no
missing codes are guaranteed.
FUL L -SC AL E ERROR
T he last transition (from 011 . . . 10 to 011 . . . 11 in two’s
complement coding) should occur for an analog voltage 1 1/2 LSB
below the nominal full scale (2.49994278 V for the 0 V–2.5 V
range). T he full-scale error is the deviation of the actual level of
the last transition from the ideal level.
UNIPOLAR ZERO ERROR
T he first transition should occur at a level 1/2 LSB above analog
ground (19.073 μV for the 0 V–2.5 V range). Unipolar zero error is
the deviation of the actual transition from that point.
SPURIOUS FREE DYNAMIC RANGE (SFDR)
T he difference, in decibels (dB), between the rms amplitude of
the input signal and the peak spurious signal.
EFFECT IVE NUMBER OF BIT S (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.
T OT AL HARMONIC DIST ORT ION (T HD)
T HD 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-T O-NOISE RAT IO (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. T he value for SNR is
expressed in decibels.
SIGNAL T O (NOISE + DIST ORT ION) RAT IO
(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. T he
value for S/(N+D) is expressed in decibels.
APERT URE DEL AY
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.
T RANSIENT RESPONSE
T he time required for the AD7667 to achieve its rated accu-
racy after a full-scale step function is applied to its input.
OVERVOLT AGE RECOVERY
T he time required for the ADC to recover to full accuracy
after an analog input signal 150% of full-scale is reduced to
50% of the full-scale value.
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| AD7652 | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:D38999 Series III; No. of Contacts:4; Connector Shell Size:13; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight RoHS Compliant: No |
| AD7653 | 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 |
| AD7661 | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:D38999 Series III; No. of Contacts:4; Connector Shell Size:13; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight RoHS Compliant: No |
| AD7663 | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:D38999 Series III; No. of Contacts:4; Connector Shell Size:13; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight RoHS Compliant: No |
| AD7666 | TV 8C 8#20 PIN PLUG |
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