Datasheet > ADS7868IDBVTG4

ADS7868IDBVTG4

更新时间： 2024-10-01 02:58:19

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
24页	532K
描述
1.2-V, 12-/10-/8-BIT, 200-KSPS/100-KSPS, MICRO-POWER, MINIATURE ANALOG-TO-DIGITAL CONVERTER WITH SERIAL INTERFACE

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ADS7868IDBVTG4 数据手册

B u r rĆ B ro w n P ro d u ct s

ADS7866

ADS7867

ADS7868

SLAS465–JUNE 2005

1.2-V, 12-/10-/8-BIT, 200-KSPS/100-KSPS, MICRO-POWER, MINIATURE

ANALOG-TO-DIGITAL CONVERTER WITH SERIAL INTERFACE

The sampling, conversion, and activation of digital

output SDO are initiated on the falling edge of CS.

The serial clock SCLK is used for controlling the

conversion rate and shifting data out of the converter.

Furthermore, SCLK provides a mechanism to allow

digital host processors to synchronize with the con-

FEATURES

•

Single 1.2-V to 3.6-V Supply Operation

•

High Throughput

– 200/240/280KSPS for 12/10/8-Bit V_DD≥ 1.6 V

– 100/120/140KSPS for 12/10/8-Bit V_DD≥ 1.2 V

±1.5LSB INL, 12-Bit NMC (ADS7866)

verter.

These

converters

interface

with

•

micro-processors or DSPs through a high-speed SPI

compatible serial interface. There are no pipeline

delays associated with the device.

71 dB SNR, –83 dB THD at f_IN= 30 kHz

(ADS7866)

•

Synchronized Conversion with SCLK

SPI Compatible Serial Interface

No Pipeline Delays

The minimum conversion time is determined by the

frequency of the serial clock input, SCLK, while the

maximum frequency of SCLK is determined by the

minimum sampling time required to charge the input

capacitance to 12/10/8-bit accuracy for the

Low Power

ADS7866/67/68,

respectively.

The

maximum

– 1.39 mW Typ at 200 KSPS, V_DD= 3.6 V

– 0.39 mW Typ at 200 KSPS, V_DD= 1.6 V

– 0.22 mW Typ at 100 KSPS, V_DD= 1.2 V

Auto Power-Down: 8 nA Typ, 300 nA Max

0 V to V_DDUnipolar Input Range

6-Pin SOT-23 Package

throughput is determined by how often a conversion

is initiated when the minimum sampling time is met

and the maximum SCLK frequency is used. Each

device automatically powers down after each conver-

sion, which allows each device to save power when

the throughput is reduced while using the maximum

SCLK frequency.

•

The converter reference is taken internally from the

supply. Hence, the analog input range for these

APPLICATIONS

•

Battery Powered Systems

Isolated Data Acquisition

Medical Instruments

Portable Communication

Portable Data Acquisition Systems

Automatic Test Equipment

devices is 0 V to V_DD

These devices are available in a 6-pin SOT-23

package and are characterized over the industrial

–40°C to 85°C temperature range.

REF/V

DESCRIPTION

12/10/8 BIT ADC

Comparator

The ADS7866/67/68 are low power, miniature,

12/10/8-bit A/D converters each with a unipolar,

single-ended input. These devices can operate from a

single 1.6 V to 3.6 V supply with a 200-KSPS

throughput for ADS7866. In addition, these devices

can maintain at least a 100-KSPS throughput with a

supply as low as 1.2 V.

VIN

S/H

CDAC

Conversion

and

Control

Logic

SCLK

SDO

SAR

GND

Micro-Power Miniature SAR Converter Family

RESOLUTION/SPEED

< 200 KSPS

1 MSPS – 1.25 MSPS

12-Bit

10-Bit

8-Bit

ADS7866 (1.2 V_DDto 3.6 V_DD

ADS7867 (1.2 V_DDto 3.6 V_DD

ADS7868 (1.2 V_DDto 3.6 V_DD

)

ADS7886 (2.35 V_DDto 5.25 V_DD

ADS7887 (2.35 V_DDto 5.25 V_DD

ADS7888 (2.35 V_DDto 5.25 V_DD

)

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.

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...24

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ADS7868IDBVTG4 替代型号

型号	品牌	替代类型	描述	数据表
ADS7868IDBVT	TI	完全替代	1.2-V, 12-/10-/8-BIT, 200-KSPS/100-KSPS, MICRO-POWER, MINIATURE ANALOG-TO-DIGITAL CONVERTE
ADS7868IDBVR	TI	完全替代	1.2-V, 12-/10-/8-BIT, 200-KSPS/100-KSPS, MICRO-POWER, MINIATURE ANALOG-TO-DIGITAL CONVERTE
ADS7868IDBVRG4	TI	类似代替	1.2-V, 12-/10-/8-BIT, 200-KSPS/100-KSPS, MICRO-POWER, MINIATURE ANALOG-TO-DIGITAL CONVERTE

与ADS7868IDBVTG4相关器件

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ADS7869IPZT	TI	获取价格	Analog Motor Control Front-End with Simultaneous Sampling on Seven S/H Capacitors and Thre
ADS7869IPZTG4	TI	获取价格	Analog Motor Control Front-End with Simultaneous Sampling on Seven S/H Capacitors and Thre
ADS7869IPZTR	TI	获取价格	Analog Motor Control Front-End with Simultaneous Sampling on Seven S/H Capacitors and Thre
ADS7869IPZTRG4	TI	获取价格	Analog Motor Control Front-End with Simultaneous Sampling on Seven S/H Capacitors and Thre
ADS7869IPZTT	TI	获取价格	Analog Motor Control Front-End with Simultaneous Sampling on Seven S/H Capacitors and Thre
ADS7869IPZTTG4	TI	获取价格	IC AC MOTOR CONTROLLER, PQFP100, PLASTIC, TQFP-100, Motion Control Electronics
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