THS5641_05 Datasheet, PDF (1/29 Pages) Texas Instruments – 8-BIT, 100 MSPS, CommsDAC DIGITAL-TO-ANALOG CONVERTER

D Member of the Pin-Compatible
CommsDAC™ Product Family
D 100 MSPS Update Rate
D 8-Bit Resolution
D Signal-to-Noise and Distortion Ratio
(SINAD) at 5 MHz: 50 dB
D Integral Nonlinearity INL: 0.25 LSB
D Differential Nonlinearity DNL: 0.25 LSB
D 1 ns Setup/Hold Time
D Glitch Energy: 5 pV-s
D Settling Time to 0.1%: 35 ns
D Differential Scalable Current Outputs: 2 mA
to 20 mA
D On-Chip 1.2-V Reference
D 3-V and 5-V Single Supply Operation
D Straight Binary or Twos Complement Input
D Power Dissipation: 100 mW at 3.3 V, Sleep
Mode: 17 mW at 3.3 V
D Package: 28-Pin SOIC and TSSOP
THS5641
8-BIT, 100 MSPS, CommsDAC™
DIGITAL-TO-ANALOG CONVERTER
SLAS199A – MAY 1999 REVISED JUNE 1999
SOIC (DW) OR TSSOP (PW) PACKAGE
(TOP VIEW)
D7
1
D6
2
D5
3
D4
4
D3
5
D2
6
D1
7
D0
8
NC
9
NC
10
NC
11
NC
12
NC
13
NC
14
28
CLK
27
DV_DD
26
DGND
25
MODE
24
AV_DD
23
COMP2
22
IOUT1
21
IOUT2
20
AGND
19
COMP1
18
BIASJ
17
EXTIO
16
EXTLO
15
SLEEP
NC – No internal connection
description
The THS5641 is an 8-bit resolution digital-to-analog converter (DAC) optimized for video applications and digital
data transmission in wired and wireless communication systems. The 8-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 THS5641 offers superior ac and dc performance while supporting update rates up to 100 MSPS.
The THS5641 operates from an analog and digital supply of 3 V to 5.5 V. Its inherent low power dissipation of
100 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 17 mW, thereby optimizing the power
consumption for system needs.
The THS5641 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
THS5641 supports both a straight binary and twos complement input word format, enabling flexible interfacing
with digital signal processors.
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.
CommsDAC is a trademark of 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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1999, Texas Instruments Incorporated
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