參數(shù)資料
型號(hào)： THS5641PW
廠商： Texas Instruments, Inc.
英文描述： 8-BIT, 100 MSPS, CommsDACE DIGITAL-TO-ANALOG CONVERTER
中文描述： 8位，100 MSPS的，CommsDACE數(shù)字模擬轉(zhuǎn)換器
文件頁(yè)數(shù)： 2/28頁(yè)
文件大?。?/td> 702K
代理商： THS5641PW
THS5641
8-BIT, 100 MSPS, CommsDAC
DIGITAL-TO-ANALOG CONVERTER
SLAS199A – MAY 1999 REVISED JUNE 1999
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The THS5641 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 THS5641 is available in both a 28-pin SOIC and TSSOP package. The device is characterized for operation
over the industrial temperature range of –40
°
C to 85
°
C.
AVAILABLE OPTIONS
PACKAGE
TA
28-TSSOP
(PW)
28-SOIC
(DW)
–40
°
C to 85
°
C
THS5641IPW
THS5641IDW
functional block diagram
IOUT1
IOUT2
CLK
D[7:0]
EXTLO
DGND
AVDD
EXTIO
COMP2
Current
Source
Array
Output
Current
Switches
AGND
1.2 V
REF
BIASJ
–
+
Control
AMP
0.1
μ
F
2 k
IBIAS
COMP1
Logic
Control
50
1 nF
DVDD
RBIAS
SLEEP
MODE
RLOAD
RLOAD
CEXT
C1
0.1
μ
F
0.1
μ
F
50
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