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| 型號： | AD7607BSTZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 10/32頁 |
| 文件大小： | 0K |
| 描述： | IC DAS W/ADC 14BIT 8CH 64LQFP |
| 標(biāo)準(zhǔn)包裝： | 1,500 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS），ADC |
| 分辨率（位）： | 14 b |
| 采樣率（每秒）： | 200k |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，并聯(lián)，QSPI?，串行，SPI? |
| 電壓電源： | 模擬和數(shù)字 |
| 電源電壓： | 2.3 V ~ 5.25 V，4.75 V ~ 5.25 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-LQFP |
| 供應(yīng)商設(shè)備封裝： | 64-LQFP（10x10） |
| 包裝： | 帶卷 (TR) |
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AD7607
Data Sheet
Rev. B | Page 18 of 32
TERMINOLOGY
Integral Nonlinearity
The maximum deviation from a straight line passing through
the endpoints of the ADC transfer function. The endpoints of
the transfer function are zero scale, at LSB below the first
code transition; and full scale, at LSB above the last code
transition.
Differential Nonlinearity
The difference between the measured and the ideal 1 LSB
change between any two adjacent codes in the ADC.
Bipolar Zero Code Error
The deviation of the midscale transition (all 1s to all 0s) from
the ideal, which is 0 V – LSB.
Bipolar Zero Code Error Match
The absolute difference in bipolar zero code error between any
two input channels.
Positive Full-Scale Error
The deviation of the actual last code transition from the ideal
last code transition (10 V 1 LSB (9.998) and 5 V 1 LSB
(4.99908)) after bipolar zero code error is adjusted out. The
positive full-scale error includes the contribution from the
internal reference buffer.
Positive Full-Scale Error Match
The absolute difference in positive full-scale error between any
two input channels.
Negative Full-Scale Error
The deviation of the first code transition from the ideal first
code transition (10 V + LSB (9.9993) and 5 V + LSB
(4.99969)) after the bipolar zero code error is adjusted out.
The negative full-scale error includes the contribution from
the internal reference buffer.
Negative Full-Scale Error Match
The absolute difference in negative full-scale error between any
two input channels.
Signal-to-(Noise + Distortion) Ratio
The measured ratio of signal-to-(noise + distortion) at the
output of the ADC. The signal is the rms amplitude of the
fundamental. Noise is the sum of all nonfundamental signals
up to half the sampling frequency (fS/2, excluding dc).
The ratio depends on the number of quantization levels in
the digitization process: the more levels, the smaller the
quantization noise.
The theoretical signal-to-(noise + distortion) ratio for an ideal
N-bit converter with a sine wave input is given by
Signal-to-(Noise + Distortion) = (6.02 N + 1.76) dB
Thus, for a 14-bit converter, the signal-to-(noise + distortion)
is 86.04 dB.
Total Harmonic Distortion (THD)
The ratio of the rms sum of the harmonics to the fundamental.
For the AD7607, it is defined as
THD (dB) =
20log
1
6
5
4
3
2
V
2
9
2
8
2
7
2
+
where:
V1 is the rms amplitude of the fundamental.
V2 to V9 are the rms amplitudes of the second through ninth
harmonics.
Peak Harmonic or Spurious Noise
The ratio of the rms value of the next largest component in the
ADC output spectrum (up to fS/2, excluding dc) to the rms value
of the fundamental. Normally, the value of this specification is
determined by the largest harmonic in the spectrum, but for
ADCs where the harmonics are buried in the noise floor, it is
determined by a noise peak.
Intermodulation Distortion
With inputs consisting of sine waves at two frequencies, fa and fb,
any active device with nonlinearities create distortion products
at sum and difference frequencies of mfa ± nfb, where m, n = 0,
1, 2, 3. Intermodulation distortion terms are those for which
neither m nor n is equal to 0. For example, the second-order
terms include (fa + fb) and (fa fb), and the third-order terms
include (2fa + fb), (2fa fb), (fa + 2fb), and (fa 2fb).
The calculation of the intermodulation distortion is per the THD
specification, where it is the ratio of the rms sum of the individual
distortion products to the rms amplitude of the sum of the
fundamentals expressed in decibels (dB).
Power Supply Rejection Ratio (PSRR)
Variations in power supply affect the full-scale transition but not
the linearity of the converter. PSR is the maximum change in
full-scale transition point due to a change in power supply voltage
from the nominal value. The PSR ratio (PSRR) is defined as the
ratio of the power in the ADC output at full-scale frequency, f,
to the power of a 200 mV p-p sine wave applied to the ADC’s
VDD and VSS supplies of frequency, fS.
PSRR (dB) = 10log (Pf/PfS)
where:
Pf is equal to the power at Frequency f in the ADC output.
PfS is equal to the power at Frequency fS coupled onto the AVCC
supplies.
Channel-to-Channel Isolation
Channel-to-channel isolation is a measure of the level of crosstalk
between any two channels. It is measured by applying a full-scale
sine wave signal of up to 160 kHz to all unselected input channels,
and then determining the degree to which the signal attenuates
in the selected channel with a 1 kHz sine wave signal applied (see
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7608 | 制造商:AD 制造商全稱:Analog Devices 功能描述:8-Channel Differential DAS with 18-Bit |
| AD7608BSTZ | 功能描述:IC DAS W/ADC 18BIT 8CH 64LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Basics 標(biāo)準(zhǔn)包裝:1 系列:- 類型:電機控制 分辨率（位）:12 b 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，并聯(lián) 電壓電源:單電源 電源電壓:2.7 V ~ 3.6 V，4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:100-TQFP 供應(yīng)商設(shè)備封裝:100-TQFP（14x14） 包裝:剪切帶 (CT) 其它名稱:296-18373-1 |
| AD7608BSTZ-RL | 功能描述:IC DAS W/ADC 18BIT 8CH 64LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD7609 | 制造商:AD 制造商全稱:Analog Devices 功能描述:8-Channel Differential DAS with 18-Bit |
| AD7609BSTZ | 功能描述:IC DAS 18BIT 8CHANNEL 64-LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
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