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參數(shù)資料
| 型號： | AD6644ASTZ-40 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 5/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 14BIT 40MSPS CMOS 52-LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 40M |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 功率耗散（最大）： | 1.3W |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -25°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 52-LQFP |
| 供應(yīng)商設(shè)備封裝： | 52-LQFP（10x10） |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 1 個差分，雙極 |
AD6644
Rev. D | Page 13 of 24
TERMINOLOGY
Analog Bandwidth
The analog input frequency at which the spectral power of the
fundamental frequency (as determined by the FFT analysis) is
reduced by 3 dB.
Aperture Delay
The delay between the 50% point of the rising edge of the
ENCODE command and the instant at which the analog input
is sampled.
Aperture Uncertainty (Jitter)
The sample-to-sample variation in aperture delay.
Differential Analog Input Resistance, Differential Analog
Input Capacitance, and Differential Analog Input Impedance
The real and complex impedances measured at each analog
input port. The resistance is measured statically and the
capacitance and differential input impedances are measured
with a network analyzer.
Differential Analog Input Voltage Range
The peak-to-peak differential voltage that must be applied to
the converter to generate a full-scale response. Peak differential
voltage is computed by observing the voltage on a single pin
and subtracting the voltage from the other pin, which is 180°
out of phase. Peak-to-peak differential is computed by rotating the
input phase 180° and taking the peak measurement again. The
difference is then computed between both peak measurements.
Differential Nonlinearity
The deviation of any code width from an ideal 1 LSB step.
Encode Pulse Width/Duty Cycle
Pulse width high is the minimum amount of time that the
ENCODE pulse should be left in the Logic 1 state to achieve
rated performance; pulse width low is the minimum time
ENCODE pulse should be left in a low state. Optimum
performance is achieved using a 50% duty cycle.
Full-Scale Input Power
Expressed in dBm. Computed using the following equation:
=
001
.
0
log
10
2
Input
Scale
Full
Z
rms
Scale
Full
V
POWER
Harmonic Distortion, Second
The ratio of the rms signal amplitude to the rms value of the
second harmonic component, reported in dBc.
Harmonic Distortion, Third
The ratio of the rms signal amplitude to the rms value of the
third harmonic component, reported in dBc.
Integral Nonlinearity
The deviation of the transfer function from a reference line
measured in fractions of 1 LSB using a best straight line
determined by a least-square curve fit.
Minimum Conversion Rate
The encode rate at which the SNR of the lowest analog signal
frequency drops by no more than 3 dB below the guaranteed limit.
Maximum Conversion Rate
The encode rate at which parametric testing is performed.
Noise (for Any Range Within the ADC)
×
=
10
001
.
0
dBFS
dBc
dBm
NOISE
Signal
SNR
FS
Z
V
where:
Z
is the input impedance.
FS
is the full scale of the device for the frequency in question.
SNR
is the value for the particular input level.
Signal
is the signal level within the ADC reported in dB below
full scale.
VNOISE includes both thermal and quantization noise.
Output Propagation Delay
The delay between a differential crossing of ENCODE and
ENCODE, and the time when all output data bits are within
valid logic levels.
Power Supply Rejection Ratio
The ratio of a change in input offset voltage to a change in
power supply voltage.
Signal-to-Noise and Distortion (SINAD)
The ratio of the rms signal amplitude (set 1 dB below full scale)
to the rms value of the sum of all other spectral components,
including harmonics, but excluding dc.
Signal-to-Noise Ratio (Without Harmonics)
The ratio of the rms signal amplitude (set at 1 dB below full
scale) to the rms value of the sum of all other spectral
components, excluding the first five harmonics and dc.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD6644ASTZ-40 | 制造商:Analog Devices 功能描述:IC 14-BIT ADC |
| AD6644ASTZ-65 | 功能描述:IC ADC 14BIT 65MSPS CMOS 52-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:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 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-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD6644ASTZ-65 | 制造商:Analog Devices 功能描述:A/D Converter (A-D) IC |
| AD6644PCB | 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit, 40 MSPS/65 MSPS A/D Converter |
| AD6644ST | 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit, 40 MSPS/65 MSPS A/D Converter |
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