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| 型號： | AD9761ARSRL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 10BIT DUAL 40MSPS 28-SSOP |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標(biāo)準(zhǔn)包裝： | 1,500 |
| 設(shè)置時間： | 35ns |
| 位數(shù)： | 10 |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 電壓電源： | 模擬和數(shù)字 |
| 功率耗散（最大）： | 250mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SSOP |
| 包裝： | 帶卷 (TR) |
| 輸出數(shù)目和類型： | 4 電流，單極；4 電流，雙極 |
| 采樣率（每秒）： | 40M |
| 配用： | AD9761-EBZ-ND - BOARD EVAL FOR AD9761 |
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
that may result from its use. No license is granted by implication or oth-
erwise under any patent or patent rights of Analog Devices.Trademarks
and registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
2003 Analog Devices, Inc. All rights reserved.
AD9761
Dual 10-Bit TxDAC+
with 2 Interpolation Filters
FEATURES
Complete 10-Bit, 40 MSPS Dual Transmit DAC
Excellent Gain and Offset Matching
Differential Nonlinearity Error: 0.5 LSB
Effective Number of Bits: 9.5
Signal-to-Noise and Distortion Ratio: 59 dB
Spurious-Free Dynamic Range: 71 dB
2 Interpolation Filters
20 MSPS/Channel Data Rate
Single Supply: 3 V to 5.5 V
Low Power Dissipation: 93 mW (3 V Supply @
40 MSPS)
On-Chip Reference
28-Lead SSOP
FUNCTIONAL BLOCK DIAGRAM
ACOM
REFLO
I
DAC
FSADJ
IOUTA
IOUTB
WRITE INPUT
SELECT INPUT
DCOM
DVDD
CLOCK
AD9761
2
LATCH
I
REFIO
REFERENCE
COMP1
COMP2
COMP3
BIAS
GENERATOR
QOUTA
QOUTB
2
LATCH
Q
MUX
CONTROL
AVDD
DAC DATA
INPUTS
(10 BITS)
SLEEP
Q
DAC
PRODUCT DESCRIPTION
The AD9761 is a complete dual-channel, high speed, 10-bit
CMOS DAC. The AD9761 has been developed specifically for
use in wide bandwidth communication applications (e.g., spread
spectrum) where digital I and Q information is being processed
during transmit operations. It integrates two 10-bit, 40 MSPS
DACs, dual 2 interpolation filters, a voltage reference, and digi-
tal input interface circuitry. The AD9761 supports a 20 MSPS
per channel input data rate that is then interpolated by 2 up to
40 MSPS before simultaneously updating each DAC.
The interleaved I and Q input data stream is presented to the
digital interface circuitry, which consists of I and Q latches as
well as some additional control logic. The data is de-interleaved
back into its original I and Q data. An on-chip state machine
ensures the proper pairing of I and Q data. The data output from
each latch is then processed by a 2 digital interpolation filter
that eases the reconstruction filter requirements. The interpo-
lated output of each filter serves as the input of their respective
10-bit DAC.
The DACs utilize a segmented current source architecture com-
bined with a proprietary switching technique to reduce glitch
energy and to maximize dynamic accuracy. Each DAC provides
differential current output, thus supporting single-ended or dif-
ferential applications. Both DACs are simultaneously updated
and provide a nominal full-scale current of 10 mA. Also, the
full-scale currents between each DAC are matched to within
0.07 dB (i.e., 0.75%), thus eliminating the need for additional
gain calibration circuitry.
The AD9761 is manufactured on an advanced low cost CMOS
process. It operates from a single supply of 3 V to 5.5 V and
consumes 200 mW of power.To make the AD9761 complete, it
also offers an internal 1.20 V temperature-compensated band gap
reference.
PRODUCT HIGHLIGHTS
1. Dual 10-Bit, 40 MSPS DACs
A pair of high performance 40 MSPS DACs optimized for low
distortion performance provide for flexible transmission of I
and Q information.
2. 2 Digital Interpolation Filters
Dual matching FIR interpolation filters with 62.5 dB stop-
band rejection precede each DAC input, thus reducing the
DACs’ reconstruction filter requirements.
3. Low Power
Complete CMOS dual DAC function operates on a low
200 mW on a single supply from 3 V to 5.5 V. The DAC
full-scale current can be reduced for lower power opera-
tion, and a sleep mode is provided for power reduction
during idle periods.
4. On-Chip Voltage Reference
The AD9761 includes a 1.20 V temperature-compensated
band gap voltage reference.
5. Single 10-Bit Digital Input Bus
The AD9761 features a flexible digital interface that allows
each DAC to be addressed in a variety of ways including dif-
ferent update rates.
6. Small Package
The AD9761 offers the complete integrated function in a
compact 28-lead SSOP package.
7. Product Family
The AD9761 Dual Transmit DAC has a pair of Dual Receive
ADC companion products, the AD9281 (8 bits) and AD9201
(10 bits).
REV. C
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9761ARSZ | 功能描述:IC DAC 10BIT DUAL 40MSPS 28-SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 設(shè)置時間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓，單極 采樣率（每秒）:* 產(chǎn)品目錄頁面:1398 (CN2011-ZH PDF) |
| AD9761ARSZRL | 功能描述:IC DAC 10BIT DUAL 40MSPS 28-SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
| AD9761-EB | 制造商:Analog Devices 功能描述:Evaluation Board For AD9761 制造商:Analog Devices 功能描述:DEV TOOLS, EVAL BD FOR AD9761 - Bulk 制造商:Analog Devices 功能描述:SEMICONDUCTOR ((NS)) |
| AD9761-EBZ | 功能描述:BOARD EVAL FOR AD9761 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 數(shù)模轉(zhuǎn)換器 (DAC) 系列:TxDAC® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- DAC 的數(shù)量:4 位數(shù):12 采樣率（每秒）:- 數(shù)據(jù)接口:串行，SPI? 設(shè)置時間:3µs DAC 型:電流/電壓 工作溫度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
| AD9762 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Analog Devices: Data Converters: DAC 12-Bit, 10 ns to 100 ns Converters Selection Table |
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