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參數資料
| 型號： | MAX1333ETE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | 3Msps/2Msps, 5V/3V, 2-Channel, True-Differential 12-Bit ADCs |
| 中文描述： | 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, QCC16 |
| 封裝： | 3 X 3 MM, 0.8 MM HEIGHT, MO-220, TQFN-16 |
| 文件頁數： | 22/25頁 |
| 文件大小： | 379K |
| 代理商： | MAX1333ETE |
M
Connect all digital grounds to the digital ground point.
For lowest noise operation, make the power supply
returns as low impedance and as short as possible.
Connect the analog ground point to the digital ground
point together at the IC.
High-frequency noise in the power supplies degrades
the ADC’s performance. Bypass AV
DD
to AGND with
0.1μF and 1μF bypass capacitors. Likewise, bypass
DV
DD
to DGND with 0.1μF and 1μF bypass capacitors.
Minimize capacitor lead lengths for best supply noise
rejection. To reduce the effects of supply noise, a 10
resistor can be connected as a lowpass filter to attenu-
ate supply noise (see
Figure 20).
Exposed Paddle
The MAX1332/MAX1333 TQFN package has an exposed
paddle on the bottom of the package, providing a very
low thermal resistance path for heat removal from the IC,
as well as a low-inductance path to ground. The pad is
electrically connected to AGND on the MAX1332/
MAX1333 and must be soldered to the circuit board ana-
log ground plane for proper thermal and electrical perfor-
mance. Refer to the Maxim Application Note HFAN-08.1:
Thermal Considerations for QFN and Other Exposed Pad
Packages
, for additional information.
Definitions
Integral Nonlinearity (INL)
INL is the deviation of the values on an actual transfer
function from a straight line. For the MAX1332/
MAX1333, this straight line is between the end points of
the transfer function once offset and gain errors have
been nullified. INL deviations are measured at every
step and the worst-case deviation is reported in the
electrical characteristics table.
Differential Nonlinearity (DNL)
DNL is the difference between an actual step width and
the ideal value of 1 LSB. A DNL error specification of
less than 1 LSB guarantees no missing codes and a
monotonic transfer function. For the MAX1332/
MAX1333, DNL deviations are measured at every step
and the worst-case deviation is reported in the electri-
cal characteristics table.
Offset Error
Offset error is a figure of merit that indicates how well
the actual transfer function matches the ideal transfer
function at a single point. Typically, the point at which
the offset error is specified is at or near the zero-scale
of the transfer function or at or near the midscale of the
transfer function.
For the MAX1332/MAX1333, operating with a unipolar
transfer function, the ideal zero-scale digital output
transition from 0x000 to 0x001 occurs at 0.5 LSB above
AGND. Unipolar offset error is the amount of deviation
between the measured zero-scale transition point and
the ideal zero-scale transition point.
For the MAX1332/MAX1333, operating with a bipolar
transfer function, the ideal midscale digital output tran-
sition from 0xFFF to 0x000 occurs at 0.5 LSB below
AGND. Bipolar offset error is the amount of deviation
3Msps/2Msps, 5V/3V, 2-Channel, True-
Differential 12-Bit ADCs
22
______________________________________________________________________________________
CNVST
TCLK
RCLKADSP21_ _ _
DOUT
SCLK
DV
DD
VDDINT
MAX1332
MAX1333
TFS
RFS
DR
Figure 19. Interfacing to the ADSP21_ _ _
ANALOG SUPPLY
AV
DD
AGND
DV
DD
DATA
DGND
DIGITAL
CIRCUITRY
AV
DD
RETURN
DIGITAL
GROUND
POINT
DIGITAL SUPPLY
RETURN
DV
DD
DGND
DV
DD
MAX1332
MAX1333
ANALOG
GROUND
POINT
*OPTIONAL
10
*
Figure 20. Power-Supply Grounding Condition
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX13342EEBC- | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX13342EEBC+ | 制造商:Maxim Integrated Products 功能描述:USB FULL SPEED TRANSCEIVER - Rail/Tube |
| MAX13342EEBC+T | 功能描述:USB 接口集成電路 Full-Speed 12Mbps USB Transceiver RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| MAX13342EEBC-T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX13342EETD+T | 功能描述:USB 接口集成電路 Full-Speed 12Mbps USB Transceiver RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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