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AD8556-EVALZ/AD8556CP-EBZ User Guide

UG-896

One

 

Technology

 

Way

 

 

P.O.

 

Box

 

9106

 

 

Norwood,

 

MA

 

02062-9106,

 

U.S.A.

 

 

Tel:

 

781.329.4700

 

 

Fax:

 

781.461.3113

 

 

www.analog.com 

 

Evaluation Board for Zero-Drift, Digitally Programmable Sensor Signal Amplifier 

 

 
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT  
WARNING AND LEGAL TERMS AND CONDITIONS.

 

Rev. A | Page 1 of 9 

FEATURES 

Single- or dual-supply operation 
AC and DC signal evaluation 
Built-in 100 Ω bridge with unbalancing capability 
Provision to create low-pass filter 
Readback feature of programmed values 
External clamp voltage setting 
Interface for PC USB port  
Evaluation software, compatible with Microsoft Windows XP, 

Windows Vista, and Windows 7  

SOIC/LFCSP socket for easy device replacement 
Supports 

AD8555

AD8556

, an

AD8557

 ICs 

EQUIPMENT NEEDED 

AD8556-EVALZ

/

AD8556CP-EBZ

 evaluation board 

Analog Devices, Inc., System Demonstration Platform (SDP) 

SDP-S (

EVAL-SDP-CS1Z

) or SDP-B (

EVAL-SDP-CB1Z

USB cable (included with SDP board) 
Power supplies 
Voltage source 
Voltmeter 
BNCs and power cables 
PC running Windows XP, Windows Vista, or Windows 7 

GENERAL DESCRIPTION 

This user guide describes the evaluation board hardware and soft-
ware used to evaluate th

AD8555

AD8556

, and 

AD8557

 in SOIC 

and LFCSP packages. The 

AD8556-EVALZ

/

AD8556CP-EBZ

 

evaluation boards allow the quick demonstration and evaluation 
of th

AD8555

/

AD8556

/

AD8557

 zero-drift, digitally program-

mable sensor signal amplifiers.  

The 

AD8555

/

AD8556

/

AD8557

 are auto-zero instrumentation 

amplifiers with programmable gain and output offset 
adjustment features. The evaluation board enables a PC to 
communicate with th

AD8555

/

AD8556

/

AD8557

. The user can 

send commands to the evaluation board and read back the 
programmed values for the device that is being evaluated.  

This user guide supplements the information in th

AD8555

AD8556

, an

AD8557

 data sheets, which should be consulted 

in conjunction with this user guide when working with the 
evaluation board.  

 

 

 

 

EVALUATION BOARD CONNECTION DIAGRAM 

118

86

-0

0

1

 

Figure 1. SDP-S board Connected to the 

AD8556-EVALZ

 Board (SDP-B Board Also Shown for Reference) 

Содержание AD8556-EVALZ

Страница 1: ...SDP board Power supplies Voltage source Voltmeter BNCs and power cables PC running Windows XP Windows Vista or Windows 7 GENERAL DESCRIPTION This user guide describes the evaluation board hardware an...

Страница 2: ...al Hardware Setup and Output Verification 4 Software 5 Installation 5 Removing the Evaluation Software 5 Running the Software 5 Typical AC Setup and Response 6 Output Clamp Feature 7 Evaluation Board...

Страница 3: ...the device Pin 1 is the pin located in the upper left hand corner of the socket close to R7 Make sure that the device is placed in the socket properly See Figure 11 for the evaluation board schematic...

Страница 4: ...rs and monitor the VOUT dc output using a voltmeter 5 Place an AD8555 AD8556 AD8557 device in the SOIC LFCSP socket connect the VCLAMP pin to the VDD pin and apply dc power to the board using an exter...

Страница 5: ...valuation software modules 1 Go to Start Settings Control Panel 2 Double click Add Remove Programs and select AD855x Evaluation Software RUNNING THE SOFTWARE To run the evaluation software application...

Страница 6: ...e the right level in the output High sense current reads back the fuse states to make sure that the fuses are blown A code for blown fuses appears in a pop up box See the AD8555 AD8556 AD8557 data she...

Страница 7: ...the input to AD8556 EVALZ is accidentally larger than anticipated In normal situations VSUPPLIES 2 5 V gain 70 VOFFSET 2 5 V input 40 mV p p the response to an input is as shown in Figure 8 T 2 1 T Ch...

Страница 8: ...A3 A2 A1 EN GND AGND AGND Figure 11 AD8556CP EBZ Evaluation Board Schematic FIT IN 2 75X4 25 2 LAYER BOARD VNEG P2 P1 DELETE NC PIN CONNECTIONS VPOS P2 P1 VSS GND 3 3V 20MA EEPROM ID BLK BLK 0 1UF 0 1...

Страница 9: ...party for any reason Upon discontinuation of use of the Evaluation Board or termination of this Agreement Customer agrees to promptly return the Evaluation Board to ADI ADDITIONAL RESTRICTIONS Custom...

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