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參數(shù)資料
| 型號(hào)： | ADS809 |
| 英文描述： | 12-Bit, 80MHz Sampling ANALOG-TO-DIGITAL CONVERTER |
| 中文描述： | 12位，80MHz的采樣模擬數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 437K |
| 代理商： | ADS809 |
ADS809
12-Bit
Pipelined
ADC Core
Reference and
Mode Select
Reference Ladder
and Driver
Timing Circuitry
Error
Correction
Logic
3-State
Outputs
T&H
D0
D11
+V
S
ADS809
CLK
CLK
OE
SEL2
REFB
V
REF
REFT
VDRV
IN
1Vp-p
1Vp-p
CM
(+2.5V)
SEL1
DV
OVR
IN
12-Bit, 80MHz Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
G
DYNAMIC RANGE:
SNR: 65dB at 10MHz f
IN
SFDR: 68dB at 10MHz f
IN
G
PREMIUM TRACK-AND-HOLD:
Low Jitter: 0.5ps rms
Differential or Single-Ended Inputs
Selectable Full-Scale Input Range
G
FLEXIBLE CLOCKING:
Differential or Single-Ended
Accepts Sine or Square Wave Clocking
Down to 0.5Vp-p
Variable Threshold Level
DESCRIPTION
The ADS809 is a high-dynamic range, 12-bit, 80MHz, pipelined
Analog-to-Digital Converter (ADC). It includes a high-band-
width linear track-and-hold that has a low jitter of only 0.5ps
rms, leading to excellent Signal-to-Noise Ratio (SNR) perfor-
mance. The clock input can accept a low-level differential sine
wave or square wave signal down to 0.5Vp-p, further improv-
ing the SNR performance. It also accepts a single-ended
clock signal and has flexible threshold levels.
The ADS809 has a 2Vp-p differential input range (1Vp-p
2
inputs) for optimum signal-to-noise ratio. The differential
operation gives the lowest even-order harmonic compo-
nents. A lower input voltage of 1.5Vp-p or 1Vp-p can also be
selected using the internal references, further optimizing
Spurious-Free Dynamic Range (SFDR). Alternatively, a single-
ended input range can be used by tying the
IN
input to the
common-mode voltage if desired.
The ADS809 also provides an over-range flag that indicates
when the input signal has exceeded the converter
’
s full-scale
range. This flag can also be used to reduce the gain of the
front-end signal conditioning circuitry. It also employs digital
error-correction techniques to provide excellent differential
linearity for demanding imaging applications. The ADS809 is
available in a small TQFP-48 PowerPAD
thermally-
enhanced package.
APPLICATIONS
G
BASESTATION WIDEBAND RADIOS:
CDMA, GSM, TDMA, 3G, AMPS, and NMT
G
TEST INSTRUMENTATION
G
CCD IMAGING
ADS809
SBAS170C
–
NOVEMBER 2000
–
REVISED JANUARY 2003
www.ti.com
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 2000-2003, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a registered trademark of Texas Instruments.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS809Y/250 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 80MHz Sampling 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS809Y/250G4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 80MHz Sampling 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS809Y/2K | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 80MHz Sampling 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS809Y/2K5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:A/D CONVERTER |
| ADS809Y/2KG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 80MHz Sampling 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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