ADC78H89 - 7-Channel, 500 KSPS, 12-Bit A/D Converter

ADC78H89 - 7-Channel, 500 KSPS, 12-Bit A/D Converter from the PowerWise® Family

Datasheet	Packaging	Samples & Pricing	Reliability	Design Tools	Knowledge Base

Features

•	Seven input channels
•	Variable power management
•	Independent analog and digital supplies
•	SPI™/QSPI™/MICROWIRE™/DSP compatible
•	Packaged in 16-lead TSSOP

Key Specification

Conversion Rate	500 KSPS
DNL	± 1 LSB (max)
INL	± 1 LSB (max)
Power Consumption

3V Supply

1.5 mW (typ)

5V Supply

8.3 mW (typ)

General Description

The ADC78H89 is a low-power, seven-channel CMOS 12-bit analog-to-digital converter with a conversion throughput of 500 KSPS. More...

Applications

•	Automotive Navigation
•	Portable Systems
•	Medical Instruments
•	Mobile Communications
•	Instrumentation and Control Systems

Typical Application

click for larger image

Parameters Values

Resolution 12 bits

Input Channels 7

Interface Type SPI / QSPI / Microwire

Differential Input No

Power Down, typ. at 3.6V 0.3 uW

Operating Power, 3.6V, 1ksps, max. PwrDn 1.8 mW

PowerWise Rating 1 0.14 pJ/conv

INL (LSB) +/-0.4

DNL (LSB) +0.6; -0.4

ENOB 11.8 bits

SINAD 73 dB

SNR 73 dB

Max KSample Rate 500 ksps

Min Supply Voltage 2.7 Volt

Max Supply Voltage 5.25 Volt

Reference Source Supply

Temperature Min -40 deg C

Temperature Max 85 deg C

Power Down Yes

Input Sample/Hold Yes

Special Features Undefined

Data Converter Type ADC

Max Sample Rate 0.5 MSPS

PowerWise Yes

Typical Performance

click for larger image

WEBENCH Live Simulation!

ADC78H89 Webench® Custom
Design/Analyze/Build It

ADC Parameters

ADC and Op Amp Supply voltage:

5 V

3.3 V

help

Sample Rate

Sample Rate per channel

ksps

help

Operating Conditions

Min. Ambient Temperature

degC

help

Nominal Ambient Temperature

degC

help

Max. Ambient Temperature

degC

help

Also Recommended

ADC128S022▲	8 Channel, 50Ksps To 200Ksps
ADC128S052▲	8 Channel, 200Ksps To 500Ksps
ADC128S102▲	8 Channel, 500Ksps To 1Msps

Additional Resources

Design Tools

Block Diagram

click for larger image

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
ADC78H89 7-Channel, 500 KSPS, 12-Bit A/D Converter	828 Kbytes	8-Mar-05	Download
ADC78H89 7-Channel, 500 KSPS, 12-Bit A/D Converter (Japanese)	655 Kbytes

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

ADC78H89CIMT

TSSOP

NOPB
STD

1
1

260
260

RoHS

Download

Full production

N/A

1K+

$2.50

rail
of
92

NSUZXYTT
78H89
CIMT

12 weeks

1000

ADC78H89CIMTX

TSSOP

NOPB
STD

1
1

260
260

RoHS

Download

Full production

N/A

1K+

$2.50

reel
of
2500

NSUZXYTT
78H89
CIMT

6 weeks

10000

General Description

The ADC78H89 is a low-power, seven-channel CMOS 12-bit analog-to-digital converter with a conversion throughput of 500 KSPS. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept up to seven input signals on pins AIN1 through AIN7.

The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE™, and many common DSP serial interfaces.

The ADC78H89 may be operated with independent analog and digital supplies. The analog supply (AV_DD) can range from +2.7V to +5.25V, and the digital supply (DV_DD) can range from +2.7V to AV_DD. Normal power consumption using a +3V or +5V supply is 1.5 mW and 8.3 mW, respectively. The power-down feature reduces the power consumption to just 0.3 µW using a +3V supply, or 0.5 µW using a +5V supply. The ADC78H89 is packaged in a 16-lead TSSOP package. Operation over the industrial temperature range of -40°C to +85°C is guaranteed.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC78H89CIMT	CMOS7	0	18406	0	0	1089000	4	309006723
ADC78H89CIMTX	CMOS7	0	18406	0	0	1089000	4	309006723

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

Design Tools

Title	Size in Kbytes	Date
Evaluation Boards & Development Systems			View
"To evaluate the ADC78H89, order the ADC128S102EVAL evaluation board"			View

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 8-Nov-2009]