Datasheet > LTC1662I

LTC1662I

更新时间： 2024-09-20 22:57:35

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
12页	188K
描述
Ultralow Power, Dual 10-Bit DAC in MSOP

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LTC1662I 数据手册

Final Electrical Specifications

LTC1662

Ultralow Power, Dual

10-Bit DAC in MSOP

March 2000

DESCRIPTIO

FEATURES

The LTC^®1662 is an ultralow power, fully buffered volt-

ageoutput,dual10-bitdigital-to-analogconverter(DAC).

Each DAC draws just 1.7µA (typ) total supply-plus-

reference operating current, yet is capable of supplying

DC output currents in excess of 1mA and reliably driving

capacitive loads of up to 1000pF. A programmable Sleep

mode further reduces total operating current to a negli-

gible 0.05µA.

■

Ultralow Power: 1.5µA (Typ) I_CCper DAC Plus

0.05µA Sleep Mode for Extended Battery Life

■

Tiny: Two 10-Bit DACs in an 8-Lead MSOP—

Half the Size of an SO-8

Wide 2.7V to 5.5V Supply Range

■

Double Buffered for Simultaneous DAC Updates

■

Rail-to-Rail Voltage Outputs Drive 1000pF

■

Reference Range Includes Supply for Ratiometric

0V-to-V_CCOutput

Linear Technology’s proprietary, inherently monotonic

voltage interpolation architecture provides excellent lin-

earity while allowing for an exceptionally small external

form factor. The double-buffered input logic provides

simultaneousupdatecapabilityandcanbeusedtowriteto

either DAC without interrupting Sleep mode.

■

Reference Input Impedance Is Code-Independent

(7.1MΩ Typ)—Eliminates External Buffers

■

3-Wire Serial Interface with

Schmitt Trigger Inputs

■

Differential Nonlinearity: ±0.75LSB Max

With its ultralow operating current and exceptionally

small size, the LTC1662 is ideal for use in battery-

powered products.

APPLICATIO S

■

Mobile Communications

■

The LTC1662 is pin- and software-compatible with the

LTC1661 micropower dual 10-bit DAC. It is available in

8-pin MSOP and PDIP packages and is specified over the

Portable Battery-Powered Instruments

■

Remote Industrial Devices

■

Digitally Controlled Amplifiers and Attenuators

■

industrial temperature range.

Automatic Calibration for Manufacturing

, LTC and LT are registered trademarks of Linear Technology Corporation.

BLOCK DIAGRA

GND

OUT A

OUT B

Total Supply-Plus-Reference

Operating Current

5.5

5.0

4.5

4.0

3.5

3.0

2.5

= V

REF

= 25°C

10-BIT

DAC A

10-BIT

DAC B

CODE = 1023

CODE = 512

CONTROL

LOGIC

ADDRESS

DECODER

CODE = 0

SHIFT REGISTER

2.5

3.0

3.5

4.0

(V)

4.5

5.0

5.5

1662 G01

CS/LD

SCK

REF

1662 BD

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.

12 3 4 5 6 7...12

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与LTC1662I相关器件

型号	品牌	获取价格	描述	数据表
LTC1662IMS8	Linear	获取价格	Ultralow Power, Dual 10-Bit DAC in MSOP
LTC1662IMS8#PBF	Linear	获取价格	暂无描述
LTC1662IMS8#TR	Linear	获取价格	LTC1662 - Ultralow Power, Dual 10-Bit DAC in MSOP; Package: MSOP; Pins: 8; Temperature Ran
LTC1662IMS8#TRPBF	Linear	获取价格	暂无描述
LTC1662IN8	Linear	获取价格	Ultralow Power, Dual 10-Bit DAC in MSOP
LTC1662IN8#PBF	Linear	获取价格	LTC1662 - Ultralow Power, Dual 10-Bit DAC in MSOP; Package: PDIP; Pins: 8; Temperature Ran
LTC1662IN8#TR	Linear	获取价格	IC SERIAL INPUT LOADING, 750 us SETTLING TIME, 10-BIT DAC, PDIP8, 0.300 INCH, PLASTIC, DIP
LTC1662IN8#TRPBF	Linear	获取价格	IC SERIAL INPUT LOADING, 750 us SETTLING TIME, 10-BIT DAC, PDIP8, 0.300 INCH, LEAD FREE, P
LTC1663	Linear	获取价格	10-Bit Rail-to-Rail Micropower DAC with 2-Wire Interface
LTC1663	ADI	获取价格	具二线式接口的 10 位轨至轨微功率 DAC

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