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參數(shù)資料
| 型號： | LTC2207CUK-14 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | 14-Bit, 105Msps/80Msps ADCs |
| 中文描述： | 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC48 |
| 封裝： | 7 X 7 MM, PLASTIC, MO-220WKKD-2, QFN-48 |
| 文件頁數(shù)： | 25/32頁 |
| 文件大?。?/td> | 1298K |
| 代理商： | LTC2207CUK-14 |
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LTC2207-14/LTC2206-14
25
220714614fa
Figure 14. Functional Equivalent Block Diagram of Internal Dither Circuit
+
–
AIN
–
AIN
+
S/H
AMP
DIGITAL
SUMMATION
OUTPUT
DRIVERS
MULTIBIT DEEP
PSEUDO-RANDOM
NUMBER
GENERATOR
14-BIT
PIPELINED
ADC CORE
PRECISION
DAC
CLOCK/DUTY
CYCLE
CONTROL
CLKOUT
OF
D13
D0
ENC
DITHER ENABLE
HIGH = DITHER ON, LOW = DITHER OFF
DITH
ENC
ANALOG
INPUT
22076 F14
LTC2207-14/LTC2206-14
number generator; the random number fed to the dither
DAC is also subtracted from the ADC result. If the dither
DAC is precisely calibrated to the ADC, very little of the
dither signal will be seen at the output. The dither signal
that does leak through will appear as white noise. The dither
DAC is calibrated to result in less than 0.5dB elevation in
the noise floor of the ADC, as compared to the noise floor
with dither off.
Grounding and Bypassing
The LTC2207-14/LTC2206-14 require a printed circuit
board with a clean unbroken ground plane; a multilayer
board with an internal ground plane is recommended. The
pinout of the LTC2207-14/LTC2206-14 has been optimized
for a flowthrough layout so that the interaction between
inputs and digital outputs is minimized. Layout for the
printed circuit board should ensure that digital and analog
signal lines are separated as much as possible. In particular,
care should be taken not to run any digital track alongside
an analog signal track or underneath the ADC.
High quality ceramic bypass capacitors should be used
at the V
DD,
V
CM
, and OV
DD
pins. Bypass capacitors must
be located as close to the pins as possible. The traces
connecting the pins and bypass capacitors must be kept
short and should be made as wide as possible.
The LTC2207-14/LTC2206-14 differential inputs should run
parallel and close to each other. The input traces should
be as short as possible to minimize capacitance and to
minimize noise pickup.
Heat Transfer
Most of the heat generated by the LTC2207-14/LTC2206-
14 is transferred from the die through the bottom-side
exposed pad. For good electrical and thermal performance,
the exposed pad must be soldered to a large grounded
pad on the PC board. It is critical that the exposed pad
and all ground pins are connected to a ground plane of
sufficient area with as many vias as possible.
APPLICATIONS INFORMATION
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| LTC2207IUK-14 | 14-Bit, 105Msps/80Msps ADCs |
| LTC2207UK-14 | 14-Bit, 105Msps/80Msps ADCs |
| LTC2206 | 16-Bit, 105Msps/80Msps ADCs |
| LTC2206CUK | 16-Bit, 105Msps/80Msps ADCs |
| LTC2206IUK | 16-Bit, 105Msps/80Msps ADCs |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC2207CUK-14#PBF | 功能描述:IC ADC 14BIT 105MSPS 48-QFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應商設備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端，雙極 |
| LTC2207CUK-14#TRPBF | 功能描述:IC ADC 14BIT 105MSPS 48-QFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應商設備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端，雙極 |
| LTC2207IUK | 制造商:Linear Technology 功能描述:ADC Single Pipelined 105Msps 16-bit Parallel 48-Pin QFN EP |
| LTC2207IUK#PBF | 制造商:Linear Technology 功能描述:ADC Single Pipelined 105Msps 16-bit Parallel 48-Pin QFN EP 制造商:Linear Technology 功能描述:IC ADC 16-BIT 105MSPS 48-QFN 制造商:Linear Technology 功能描述:ADC 16BIT 105MSPS 48QFN 制造商:Linear Technology 功能描述:IC, ADC, 16BIT, 105MSPS, QFN-48; Resolution (Bits):16bit; Sampling Rate:105MSPS; Supply Voltage Type:Single; Supply Voltage Min:3.135V; Supply Voltage Max:3.465V; Supply Current:273mA; Digital IC Case Style:QFN; No. of Pins:48 ;RoHS Compliant: Yes |
| LTC2207IUK#TRPBF | 制造商:Linear Technology 功能描述:ADC Single Pipelined 105Msps 16-bit Parallel 48-Pin QFN EP T/R 制造商:Linear Technology 功能描述:IC ADC 16BIT 105MSPS 48-QFN |
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