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參數資料
| 型號： | XRD64L42 |
| 廠商： | Exar Corporation |
| 英文描述： | Dual 10-Bit 40MSPS CMOS ADC |
| 中文描述： | 雙10位40MSPS的CMOS模數轉換器 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 212K |
| 代理商： | XRD64L42 |
EXAR
Corporation, 48720 Kato Road, Fremont, CA 94538
(510) 668-7000
FAX (510) 668-7017
Rev. P2.10
XRD64L42
Dual 10-Bit 40MSPS CMOS ADC
January 2001-1
FEATURES
10-Bit Resolution
Two Monolithic Complete 10-Bit ADCs
40 MSPS Conversion Rate
On-Chip Track-and-Hold
On-Chip Voltage Reference
Low 5 pF Input Capacitance
TTL/CMOS Outputs
Tri-State Output Buffers
Single +3.0V Power Supply Operation
Low Power Dissipation: 200mW-typ @ 2.7V
Power Down Mode Less Than 5mW
75dB Crosstalk (fin=1.0MHz)
-40
°
C to +85
°
C Operation Temperature Range
APPLICATIONS
Medical Ultrasound Imaging
I & Q Modems
BENEFITS
Reduction of Components
Reduction of System Cost
High Performance @ Low Power Dissipation
Long Term Time and Temperature Stability
GENERAL DESCRIPTION
The XRD64L42 is two 10-bit, monolithic, 40 MSPS
ADCs. Manufactured using a standard CMOS pro-
cess, the XRD64L42 offers low power, low cost and
excellent performance. The on-chip track-and-hold
amplifier(T/H) and voltage reference (VREF) eliminate
the need for external active components, requiring only
an external ADC conversion clock for the application.
The XRD64L42 analog input can be driven with ease
due to the high input impedance.
The design architecture uses 17 time- interleaved 10-
bit SAR ADCs in each converter to achieve high
conversion rate of 40 MSPS minimum. In order to
insure and maintain accurate 10-bit operation with
respect to time and temperature, XRD64L42 incorpo-
rates an auto-calibration circuit which continuously
adjusts and matches the offset and linearity of each
ADC. This auto-calibration circuit is transparent to the
user after the initial 3.4ms calibration (168,000 initial
clock cycles).
The power dissipation is only 200mW at 40 MSPS with
+2.7V power supply.
The digital output data is straight binary format, and
the tri-state disable function is provided for common
bus interface.
The XRD64L42 internal reference provides cost sav-
ings and simplifies the design/development. The out-
put voltage of the internal reference is set by two
external resistors. The internal reference can be dis-
abled if an external reference is used for a power
savings of 50mW.
ORDERING INFORMATION
Part Number
Package Type
Temperature Range
XRD64L42AIV
64-Lead TQFP
-40°C to +85°C
相關PDF資料 |
PDF描述 |
|---|---|
| XRD64L42AIV | Dual 10-Bit 40MSPS CMOS ADC |
| XRD64L43 | Dual 10-Bit 40MSPS CMOS ADC |
| XRD64L43AIV | Dual 10-Bit 40MSPS CMOS ADC |
| XRD64L44AIV | Dual 10-Bit 50MSPS CMOS ADC |
| XRD64L44 | Dual 10-Bit 50MSPS CMOS ADC(50MSPS轉換速率，10位 CMOS 雙A/D轉換器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| XRD64L42AIV | 制造商:EXAR 制造商全稱:EXAR 功能描述:Dual 10-Bit 40MSPS CMOS ADC |
| XRD64L43 | 制造商:EXAR 制造商全稱:EXAR 功能描述:Dual 10-Bit 40MSPS CMOS ADC |
| XRD64L43AIV | 制造商:Exar Corporation 功能描述:ADC Dual SAR 40Msps 10-bit Parallel 64-Pin LQFP |
| XRD64L43AIV-F | 功能描述:模數轉換器 - ADC 10 Bit40 MSPSADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
| XRD64L43AIVTR-F | 制造商:Exar Corporation 功能描述:ADC Dual SAR 40Msps 10-bit Parallel 64-Pin LQFP T/R 制造商:Exar Corporation 功能描述:XRD64L43AIVTR-F |
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