ADS7867 datasheet, PDF - EEWORLD Datasheet

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ADS7867: Description1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO6; Categorysemiconductor logic; File Size584KB，22 Pages; ManufacturerBurr-Brown; Websitehttp://www.burr-brown.com/

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ADS7867 Overview

1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO6

ADS7867 Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	6
Maximum operating temperature	125 Cel
Minimum operating temperature	-40 Cel
Rated supply voltage	3.3 V
Maximum linear error	0.1562 %
Maximum limit analog input voltage	5.5 V
Minimum limit analog input voltage	0.0 V
Processing package description	ROHS COMPLIANT, PLASTIC, SOT-23, 6 PIN
Lead-free	Yes
EU RoHS regulations	Yes
China RoHS regulations	Yes
state	ACTIVE
packaging shape	RECTANGULAR
Package Size	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	0.9500 mm
terminal coating	NICKEL PALLADIUM GOLD
Terminal location	DUAL
Packaging Materials	PLASTIC/EPOXY
Temperature level	AUTOMOTIVE
Sampling Rate	3 MHz
Output format	PARALLEL, WORD
Type of converter	SUCCESSIVE APPROXIMATION
Number of digits	8
Output bit encoding	BINARY
Number of analog channels	1
Sample and hold and track and hold	SAMPLE

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Burr Brown Products

from Texas Instruments

ADS7884

ADS7885

SLAS567 – MARCH 2008

10-/8-BIT, 3-MSPS, MICRO-POWER, MINIATURE

SAR ANALOG-TO-DIGITAL CONVERTERS

FEATURES

3-MHz Sample Rate Serial Device

10-Bit Resolution – ADS7884

8-Bit Resolution – ADS7885

Zero Latency

48-MHz Serial Interface

Supply Range: 2.7 V to 5.5 V

Low Power Dissipation:

– 6.8 mW at 3-V V

, 2.5 MSPS

– 15 mw at 5-V V

, 3 MSPS

±0.3 LSB INL, ±0.3 LSB DNL – ADS7884

±0.15 LSB INL, ±0.1 LSB DNL – ADS7885

61.7 dB SINAD, –81 dB THD – ADS7884

49.8 dB SINAD, –68 dB THD – ADS7885

Unipolar Input Range: 0 V to V

Powerdown Current: 1 µA

Wide Input Bandwidth: 30 MHz at 3 dB

6-Pin SOT23 Package

APPLICATIONS

•

Base Band Converters in Radio

Communication

Motor Current/Bus Voltage Sensors in Digital

Drives

Optical Networking (DWDM, MEMS Based

Switching)

Optical Sensors

Battery Powered Systems

Medical Instrumentations

High-Speed Data Acquisition Systems

High-Speed Closed-Loop Systems

•

DESCRIPTION

The ADS7884 is a 10-bit, 3-MSPS analog-to-digital converter (ADC), and the ADS7885 is a 8-bit, 3-MSPS ADC.

The devices include a capacitor based SAR A/D converter with inherent sample and hold. The serial interface in

each device is controlled by the CS and SCLK signals for glueless connections with microprocessors and DSPs.

The input signal is sampled with the falling edge of CS, and SCLK is used for conversion and serial data output.

The devices operate from a wide supply range from 2.7 V to 5.5 V. The low power consumption of the devices

make them suitable for battery-powered applications. The devices also include a power saving powerdown

feature for when the devices are operated at lower conversion speeds.

The high level of the digital input to the device is not limited to device V

. This means the digital input can go as

high as 5.5 V when device supply is 2.7 V. This feature is useful when digital signals are coming from other

circuit with different supply levels. Also this relaxes restriction on power up sequencing.

The ADS7884 and ADS7885 are available in a 6-pin SOT23 package and are specified for operation from –40°C

to 125°C.

Micro-Power Miniature SAR Converter Family

BIT

12-Bit

10-Bit

8-Bit

< 300 KSPS

ADS7866 (1.2 V

to 3.6 V

)

ADS7867 (1.2 V

to 3.6 V

)

ADS7868 (1.2 V

to 3.6 V

)

300 KSPS – 1.25 MSPS

ADS7886 (2.35 V

to 5.25 V

)

ADS7887 (2.35 V

to 5.25 V

)

ADS7888 (2.35 V

to 5.25 V

)

—

ADS7884 (2.7 V

to 5.5 V

)

ADS7885 (2.7 V

to 5.5 V

)

3 MSPS

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.

ADS7867 Related Products

	ADS7867	ADS7866	ADS7884	ADS7885	ADS7885SDBVR	ADS7885SDBVT	ADS7884SDBVT	ADS7884SDBVR	ADS7868
Description	1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO6	1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO6	1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO6	1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO6	1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO6	1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO6	1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO6	1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO6	1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO6
Number of functions	1	1	1	1	1	1	1	1	1
Number of terminals	6	6	6	6	6	6	6	6	6
Maximum operating temperature	125 Cel	125 Cel	125 Cel	125 Cel	125 Cel	125 Cel	125 Cel	125 Cel	125 Cel
Minimum operating temperature	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel
Rated supply voltage	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
Maximum linear error	0.1562 %	0.1562 %	0.1562 %	0.1562 %	0.1562 %	0.1562 %	0.0781 %	0.1562 %	0.1562 %
Maximum limit analog input voltage	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum limit analog input voltage	0.0 V	0.0 V	0.0 V	0.0 V	0.0 V	0.0 V	0.0 V	0.0 V	0.0 V
Processing package description	ROHS COMPLIANT, PLASTIC, SOT-23, 6 PIN	ROHS COMPLIANT, PLASTIC, SOT-23, 6 PIN	ROHS COMPLIANT, PLASTIC, SOT-23, 6 PIN	ROHS COMPLIANT, PLASTIC, SOT-23, 6 PIN	ROHS COMPLIANT, PLASTIC, SOT-23, 6 PIN	ROHS COMPLIANT, PLASTIC, SOT-23, 6 PIN	ROHS COMPLIANT, PLASTIC, SOT-23, 6 PIN	ROHS COMPLIANT, PLASTIC, SOT-23, 6 PIN	ROHS COMPLIANT, PLASTIC, SOT-23, 6 PIN
Lead-free	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
EU RoHS regulations	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
China RoHS regulations	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
state	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE
packaging shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package Size	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
surface mount	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal spacing	0.9500 mm	0.9500 mm	0.9500 mm	0.9500 mm	0.9500 mm	0.9500 mm	0.9500 mm	0.9500 mm	0.9500 mm
terminal coating	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Packaging Materials	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
Temperature level	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE
Sampling Rate	3 MHz	3 MHz	3 MHz	3 MHz	3 MHz	3 MHz	3 MHz	3 MHz	3 MHz
Output format	PARALLEL, WORD	PARALLEL, WORD	PARALLEL, WORD	PARALLEL, WORD	PARALLEL, WORD	PARALLEL, WORD	PARALLEL, WORD	PARALLEL, WORD	PARALLEL, WORD
Type of converter	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION
Number of digits	8	8	8	8	8	8	10	8	8
Output bit encoding	BINARY	BINARY	BINARY	BINARY	BINARY	BINARY	BINARY	BINARY	BINARY
Number of analog channels	1	1	1	1	1	1	1	1	1
Sample and hold and track and hold	SAMPLE	SAMPLE	SAMPLE	SAMPLE	SAMPLE	SAMPLE	SAMPLE	SAMPLE	SAMPLE

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