DAC8881

更新时间： 2024-11-25 04:38:31

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
34页	1225K
描述
16-Bit, Single-Channel, Low-Noise, Voltage-Output DIGITAL-TO-ANALOG CONVERTER

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DAC8881 数据手册

DAC8881

SBAS422A–JULY 2007–REVISED SEPTEMBER 2007

16-Bit, Single-Channel, Low-Noise, Voltage-Output

DIGITAL-TO-ANALOG CONVERTER

FEATURES

DESCRIPTION

2345

•

Relative Accuracy: ±0.5 LSB

16-Bit Monotonic Over Temperature Range

Low-Noise: 24nV/√Hz

The DAC8881 is

16-bit, single-channel,

voltage-output digital-to-analog converter (DAC) that

offers low-power operation and a flexible SPI serial

interface. It also features 16-bit monotonicity,

excellent linearity, and fast settling time. The on-chip

precision output amplifier allows rail-to-rail output

swing to be achieved over the full supply range of

2.7V to 5.5V.

•

Fast Settling: 5μs

On-Chip Output Buffer Amplifier with

Rail-to-Rail Operation

•

Wide, Single Power Supply: +2.7V to +5.5V

DAC Loading Control

The device supports a standard SPI serial interface

capable of operating with input data clock frequencies

up to 50MHz. The DAC8881 requires an external

reference voltage to set the output range of the DAC

channel. A programmable power-on reset circuit is

also incorporated into the device to ensure that the

DAC output powers up at zero-scale or midscale, and

remains there until a valid write command.

Selectable Power-On Reset to Zero-Scale or

Midscale

•

Power-Down Mode

Unipolar Straight Binary or

2's Complement Input Mode

•

Fast SPI™ Interface with Schmitt-Triggered

Inputs:

Up To 50MHz, 1.8V/3V/5V Logic

Additionally, the device has the capability to function

in either unipolar straight binary or 2's complement

mode. The DAC8881 provides a power-down feature,

accessed over the PDN pin, that reduces the current

consumption to 25μA at 5V. Power consumption is

6mW at 5V, reducing to 125μW in power-down mode.

Small Package: QFN-24, 4x4mm

APPLICATIONS

•

Industrial Process Control

Data Acquisition Systems

Automatic Test Equipment

Communications

The DAC8881 is available in a 4x4mm QFN-24

package with a specified operating temperature range

of –40°C to +105°C.

Optical Networking

DV_DD

DGND

IOV_DD

AGND

AV_DD

V_REFH-S V_REFH-F

DAC8881

RST

RSTSEL

USB/BTC

GAIN

Power-On

Reset

Control

Logic

Resistor

Network

SDI

PDN

V_OUT

R_FB

SCLK

Input

DAC

Latch

DAC

(1)

R_FB

SDOSEL

SDO

Serial Out

Control

NOTE: (1) R_FB= 5kW for gain = 1,

R_FB= 10kW for gain = 2.

LDAC

V_REFL-S

V_REFL-F

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.

DSP is a trademark of Texas Instruments.

SPI, QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...34

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DAC8881 替代型号

型号	品牌	替代类型	描述	数据表
DAC8830	TI	功能相似	16 位、单通道、超低功耗、电压输出 DAC
DAC8832	TI	功能相似	16-Bit, Ultra-Low Power, Voltage-Output Digital-to-Analog Converter
DAC9881	TI	功能相似	18-Bit, Single-Channel, Low-Noise, Voltage-Output DIGITAL-TO-ANALOG CONVERTER

与DAC8881相关器件

型号	品牌	获取价格	描述	数据表
DAC8881SRGER	TI	获取价格	16-Bit, Single-Channel, Low-Noise, Voltage-Output DIGITAL-TO-ANALOG CONVERTER
DAC8881SRGERG4	TI	获取价格	16-Bit, Single-Channel, Low-Noise, Voltage-Output DIGITAL-TO-ANALOG CONVERTER
DAC8881SRGET	TI	获取价格	16-Bit, Single-Channel, Low-Noise, Voltage-Output DIGITAL-TO-ANALOG CONVERTER
DAC8881SRGETG4	TI	获取价格	16-Bit, Single-Channel, Low-Noise, Voltage-Output DIGITAL-TO-ANALOG CONVERTER
DAC-88883	DATEL	获取价格	Digital-to-Analog Converters
DAC888AX	ADI	获取价格	D/A Converter, 8-Bit, 1 Func, Bipolar, CDIP18,
DAC888AX/883	ETC	获取价格	D/A CONVERTER
DAC888AX/883C	ADI	获取价格	D/A Converter, 8-Bit, 1 Func, Bipolar, CDIP18,
DAC888BIFX	ADI	获取价格	D/A Converter, 1 Func, CDIP18,
DAC888BX	ADI	获取价格	DAC888BX

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