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參數資料
| 型號： | XRD87L85 |
| 廠商： | Exar Corporation |
| 英文描述： | Low-Voltage CMOS 8-Bit High-Speed Analog-to-Digital Converter |
| 中文描述： | 低電壓的CMOS 8位高速模擬數字轉換器 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 1216K |
| 代理商： | XRD87L85 |
EXAR
Corporation, 48720 Kato Road, Fremont, CA 94538
(510) 668-7000
FAX (510) 668-7017
Rev. 1.00
XRD87L85
Low-Voltage CMOS 8-Bit High-Speed
Analog-to-Digital Converter
April 2002-1
FEATURES
8-Bit Resolution
Up to 10 MHz Sampling Rate
Internal S/H Function
Single Supply: 3.3V
VIN DC Range: 0V to V
DD
VREF DC Range: 1V to V
DD
Low Power: 25mW typ. (excluding reference)
GENERAL DESCRIPTION
The XRD87L85 is an 8-bit Analog-to-Digital Converter.
Designed using an advanced 3.3V CMOS process,
this part offers excellent performance, low power con-
sumption, and latch-up free operation.
This device uses a two-step flash architecture to
maintain low power consumption at high conversion
rates. The input circuitry of the XRD87L85 includes an
on-chip S/H function which allows the user to digitize
analog input signals between AGND and AV
DD
. Careful
design and chip layout have achieved a low analog
input capacitance. This reduces “kickback” and eases
the requirements of the buffer/amplifier used to drive
the XRD87L85. The designer can choose the internally
generated reference voltages by connecting V
RB
to
Latch-Up Free
ESD Protection: 2000V Minimum
20-Pin Package Available: XRD87L75
APPLICATIONS
Digital Color Copiers
Cellular Telephones
CCDs and Scanners
Video Capture Boards
V
RBS
and V
RT
to V
RTS
, or provide external reference
voltages to the V
RB
and V
RT
pins. The internal reference
generates 0.4V at V
RB
and 1.72V at V
RT
. Providing
external reference voltages allows easy interface to
any input signal range between AGND and AV
DD
. This
also allows the system to adjust these voltages to
cancel zero scale and full scale errors, or to change the
input range as needed.
The device operates from a single +3.3V supply.
Power consumption is 25mW at FS = 6MHz. Specified
for operation over the commercial/industrial (–40 to
+85°C) temperature range, the XRD87L85 is available
in Plastic Dual-in-line (PDIP), Surface Mount (SOIC)
and Small Outline (SOP) packages in EIAJ and
JEDEC.
SIMPLIFIED BLOCK AND TIMING DIAGRAM
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| XRD87L85AID | Low-Voltage CMOS 8-Bit High-Speed Analog-to-Digital Converter |
| XRD87L85AIK | Low-Voltage CMOS 8-Bit High-Speed Analog-to-Digital Converter |
| XRD87L85AIP | Low-Voltage CMOS 8-Bit High-Speed Analog-to-Digital Converter |
| XRD87L99 | LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| XRD87L85AID | 制造商:EXAR 制造商全稱:EXAR 功能描述:Low-Voltage CMOS 8-Bit High-Speed Analog-to-Digital Converter |
| XRD87L85AID-F | 功能描述:模數轉換器 - ADC 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 |
| XRD87L85AIK | 功能描述:模數轉換器 - ADC 3.3V 8BIT 10 MSPS ANALOG to DIGITAL 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 |
| XRD87L85AIKTR | 功能描述:模數轉換器 - ADC 3.3V 8BIT 10 MSPS ANALOG to DIGITAL 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 |
| XRD87L85AIP | 制造商:EXAR 制造商全稱:EXAR 功能描述:Low-Voltage CMOS 8-Bit High-Speed Analog-to-Digital Converter |
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