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參數資料
| 型號： | THS5661APW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 12-BIT, 125 MSPS, CommsDACE DIGITAL-TO-ANALOG CONVERTER |
| 中文描述： | 12位，125 MSPS的，CommsDACE數字模擬轉換器 |
| 文件頁數： | 1/31頁 |
| 文件大?。?/td> | 814K |
| 代理商： | THS5661APW |
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THS5661A
12-BIT, 125 MSPS, CommsDAC
DIGITAL-TO-ANALOG CONVERTER
SLAS247 – NOVEMBER 1999
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Member of the Pin-Compatible
CommsDAC
Product Family
125 MSPS Update Rate
12-Bit Resolution
Spurious Free Dynamic Range (SFDR) to
Nyquist at 40 MHz Output: 60 dBc
1 ns Setup/Hold Time
Differential Scalable Current Outputs: 2 mA
to 20 mA
On-Chip 1.2 V Reference
3 V and 5 V CMOS-Compatible Digital
Interface
Straight Binary or Twos Complement Input
Power Dissipation: 175 mW at 5 V, Sleep
Mode: 25 mW at 5 V
Package: 28-Pin SOIC and TSSOP
description
The THS5661A is a 12-bit resolution digital-to-analog converter (DAC) specifically optimized for digital data
transmission in wired and wireless communication systems. The 12-bit DAC is a member of the CommsDAC
series of high-speed, low-power CMOS digital-to-analog converters. The CommsDAC family consists of pin
compatible 14-, 12-, 10-, and 8-bit DACs. All devices offer identical interface options, small outline package, and
pinout. The THS5661A offers superior ac and dc performance while supporting update rates up to 125 MSPS.
The THS5661A operates from an analog supply of 4.5 V to 5.5 V. Its inherent low power dissipation of 175 mW
ensures that the device is well-suited for portable and low-power applications. Lowering the full-scale current
output reduces the power dissipation without significantly degrading performance. The device features a
SLEEP mode, which reduces the standby power to approximately 25 mW, thereby optimizing the power
consumption for system needs.
The THS5661A is manufactured in Texas Instruments advanced high-speed mixed-signal CMOS process. A
current-source-array architecture combined with simultaneous switching shows excellent dynamic
performance. On-chip edge-triggered input latches and a 1.2 V temperature-compensated bandgap reference
provide a complete monolithic DAC solution. The digital supply range of 3 V to 5.5 V supports 3 V and 5 V CMOS
logic families. Minimum data input setup and hold times allow for easy interfacing with external logic. The
THS5661A supports both a straight binary and twos complement input word format, enabling flexible interfacing
with digital signal processors.
The THS5661A provides a nominal full-scale differential output current of 20 mA and >300 k
output
impedance, supporting both single-ended and differential applications. The output current can be directly fed
to the load (e.g., external resistor load or transformer), with no additional external output buffer required. An
accurate on-chip reference and control amplifier allows the user to adjust this output current from 20 mA down
to 2 mA, with no significant degradation of performance. This reduces power consumption and provides 20 dB
gain range control capabilities. Alternatively, an external reference voltage and control amplifier may be applied
in applications using a multiplying DAC. The output voltage compliance range is 1.25 V.
Copyright
1999, Texas Instruments Incorporated
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.
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.
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D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
NC
NC
CLK
DV
DD
DGND
MODE
AV
DD
COMP2
IOUT1
IOUT2
AGND
COMP1
BIASJ
EXTIO
EXTLO
SLEEP
SOIC (DW) OR TSSOP (PW) PACKAGE
(TOP VIEW)
NC – No internal connection
CommsDAC is a trademark of Texas Instruments Incorporated.
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| THS5671AIDWR | 14-BIT, 125 MSPS, CommsDAC DIGITAL-TO-ANALOG CONVERTER |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| THS5661DW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-BIT, 100 MSPS, CommsDACE DIGITAL-TO-ANALOG CONVERTER |
| THS5661EVM | 功能描述:數據轉換 IC 開發工具 THS5661 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| THS5661IDW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| THS5661IPW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| THS5661PW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-BIT, 100 MSPS, CommsDACE DIGITAL-TO-ANALOG CONVERTER |
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