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參數(shù)資料
| 型號： | ADS5444_07 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 13-BIT 250 MSPS ANALOG-TO-DIGITAL CONVERTER |
| 中文描述： | 13位250 MSPS的模擬數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 8/27頁 |
| 文件大?。?/td> | 1031K |
| 代理商： | ADS5444_07 |
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DEFINITION OF SPECIFICATIONS
SNR
10log10
PS
PN
(1)
SINAD
10log10
PS
PN
PD
(2)
ADS5444
SLWS162A–AUGUST 2005–REVISED FEBRUARY 2006
DEVICE INFORMATION (continued)
TERMINAL FUNCTIONS (continued)
TERMINAL
DESCRIPTION
NAME
NO.
Over range indicator LVDS output. A logic high signals an analog input in excess of the
full-scale range.
LVDS digital output pair, least-significant bit (LSB)
LVDS digital output pairs
LVDS digital output pairs
LVDS digital output pair, most-significant bit (MSB)
Data ready LVDS output pair
No connect
OVR, OVR
42, 41
D0, D0
D1–D6, D1–D6
D7–D11, D7–D11
D12, D12
DRY, DRY
NC
50, 49
53–64
67–76
78, 77
80, 79
4, 5, 29, 33, 43–48
Analog Bandwidth
The analog input frequency at which the power of the fundamental is reduced by 3 dB with respect to the
low frequency value.
Aperture Delay
The delay in time between the rising edge of the input sampling clock and the actual time at which the
sampling occurs.
Aperture Uncertainty (Jitter)
The sample-to-sample variation in aperture delay.
Clock Pulse Width/Duty Cycle
The duty cycle of a clock signal is the ratio of the time the clock signal remains at a logic
high (clock pulse width) to the period of the clock signal. Duty cycle is typically expressed as a percentage. A
perfect differential sine wave clock results in a 50% duty cycle.
Maximum Conversion Rate
The maximum sampling rate at which certified operation is given. All parametric testing is
performed at this sampling rate unless otherwise noted.
Minimum Conversion Rate
The minimum sampling rate at which the ADC functions.
Differential Nonlinearity (DNL)
An ideal ADC exhibits code transitions at analog input values spaced exactly 1 LSB apart.
The DNL is the deviation of any single step from this ideal value, measured in units of LSB.
Integral Nonlinearity (INL)
The INL is the deviation of the ADCs transfer function from a best fit line determined by a least
squares curve fit of that transfer function. The INL at each analog input value is the difference between the
actual transfer function and this best fit line, measured in units of LSB.
Gain Error
The gain error is the deviation of the ADCs actual input full-scale range from its ideal value. The gain error is
given as a percentage of the ideal input full-scale range.
Offset Error
Offset error is the deviation of output code from mid-code when both inputs are tied to common-mode.
Temperature Drift
Temperature drift (with respect to gain error and offset error) specifies the change from the value at the
nominal temperature to the value at T
or T
MAX
. It is computed as the maximum variation the parameters
over the whole temperature range divided by T
MIN
– T
MAX
.
Signal-to-Noise Ratio (SNR)
SNR is the ratio of the power of the fundamental (P
S
) to the noise floor power (P
N
), excluding
the power at dc and the first five harmonics.
SNR is either given in units of dBc (dB to carrier) when the absolute power of the fundamental is used as the
reference, or dBFS (dB to full scale) when the power of the fundamental is extrapolated to the converter’s
full-scale range.
Signal-to-Noise and Distortion (SINAD)
SINAD is the ratio of the power of the fundamental (P
S
) to the power of all the other
spectral components including noise (P
N
) and distortion (P
D
), but excluding dc.
SINAD is either given in units of dBc (dB to carrier) when the absolute power of the fundamental is used as the
reference, or dBFS (dB to full scale) when the power of the fundamental is extrapolated to the converter’s
full-scale range.
8
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| AK135 | Circular Connector; No. of Contacts:8; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:12; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:12-8 RoHS Compliant: No |
| AK135-VQ | Circular Connector; No. of Contacts:10; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:12; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:12-98 RoHS Compliant: No |
相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| ADS5444-EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:13-BIT 250-MSPS ANALOG-TO-DIGITAL CONVERTER |
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| ADS5444EVM-CVAL | 制造商:Texas Instruments 功能描述:ADS5444EVM-CVAL - Boxed Product (Development Kits) |
| ADS5444HFGMPR | 制造商:Texas Instruments 功能描述:EVAL UNIT FOR ADS5444-SP - Bulk |
| ADS5444IPFP | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 13 BIT 250MSPS ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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