Keysight 4284A Guide d'installation

Keysight Technologies

Migrating from a Keysight 4284A

LCR Meter to a Keysight E4980A

Precision LCR Meter

Technical Overview

Keysight Technologies, Inc. is proud to introduce the Keysight E4980A precision

LCR meter to our 4284A LCR customers. Based on the latest technology, this

LCR meter provides the best combination of accuracy, speed, and versatility for

a wide range of component measurements. The E4980A offers excellent cost/

performance value, enhancing your test and measurement efficiency by

providing fast measurement speed and outstanding performance at both low

and high impedance ranges.

E4980A Precision LCR Meter Overview .......................................................................... 3

Advantages of the E4980A ................................................................................................ 4

Accuracy ........................................................................................................................ 4

Speed.............................................................................................................................. 6

Versatility ....................................................................................................................... 9

E4980A and 4284A Common Features ........................................................................... 12

Migrating from the 4284A................................................................................................. 13

Appendix

1. Specification Comparison ............................................................................................. 14

2. Setup Resolution Comparison...................................................................................... 15

3. Measurement Speed Comparison............................................................................... 16

4. Option Configuration Comparison............................................................................... 17

5. Interface Comparison Table.......................................................................................... 17

6. Display Area Design Comparison................................................................................ 18

7. Front Panel Comparison................................................................................................ 19

8. Menu and Key Tree Structure Comparison ............................................................... 20

9. Remote Control: GPIB Commands Compatibility ..................................................... 22

10. Trigger System and Data Transfer Comparison ...................................................... 24

11. Status Byte Assignments Comparison .................................................................... 25

12. Technical Reference for the Handler Interface Migration.................................... 26

Setting a new standard for

impedance measurements

TOP 3 reasons to migrate

– Accuracy

– Speed

– Versatility

The Keysight E4980A precision LCR meter (20 Hz to 2 MHz) provides the best

combination of accuracy, speed, and versatility for a wide range of component

measurements. Offering the fastest measurement speed in its class and out-

standing performance at both low and high impedance ranges, the E4980A is

the ultimate tool for general testing of leaded and surface-mount components

and materials.



With basic impedance accuracy of 0.05%, minimized noise and extremely small

residual impedance for both low and high impedance measurements, the

E4980A LCR meter provides the measurement performance needed to meet the

test requirements of the latest devices. Low measurement fluctuation results in

extremely stable and accurate measurements for better design reliability and

higher yields.

–Low impedance measurements: milliohm equivalent series resistance (ESR)

–High impedance measurement: femto-farad (fF) capacitance

Fast measurement speed reduces your cost of test

More than five times faster1than the 4284A LCR meter with the same or lower

noise level, the E4980A LCR offers fast measurement speed and outstanding

performance over a wide impedance range. The maximum speed at required

signal-to-noise levels can be achieved using three measurement modes

(SHORT/MED/ LONG compensation) and an average number up to 999.

–5.6 ms/point (SHORT), the best speed in its class

–88 ms/point (MED)

–220 ms/point (LONG)

Versatile functions and features to meet all your impedance

measurement needs

The E4980A can be used with over 30 fixtures2to meet all your evaluation

needs from materials to SMD components. This light weight, compact instru-

ment provides 16 impedance measurement parameters for your testing conve-

nience. Other features include:

Measurement versatility

–20 Hz to 2 MHz test frequency with 4-digit resolution at any frequency

–100 V to 2 Vrms, 1 A to 20 mArms variable test signal

–Auto-level control

–201 points of programmable list sweep

Option E4980A-001 power and DC bias enhancement

–0 to 20 Vrms/100 mArms test signal

–Built-in 40 V DC bias with 0.33 mV resolution

–DC resistance, DC current, and DC voltage measurement capability

E4980A Precision LCR Meter Overview

1. In SHORT mode.

2. Please refer to Keysight's "Accessories Selection Guide for Impedance Measurements"

(literature number: 5965-4792E), available on our Web site: 

lcrmeters

Option E4980A-002 bias current interface and the 42841A

bias current source

DC current bias:

–0.01 A to 20 A (with the 42841A and the 42842A)

–0.02 A to 40 A (with the 42841A x 2ea., the 42842B and the 42843A)

Automated test system interface

–Option E4980A-201 handler interface

–Option E4980A-301 scanner interface

Advantages of the E4980A

Accuracy:

Excellent performance for low and high impedance measure-

ments

The E4980A LCR meter provides impedance measurements with excellent per-

formance across all frequency ranges to meet the test requirements of the lat-

est devices. Compared to the 4284A LCR meter, the E4980A provides a wider

measurement range and increased data fluctuation to increase test quality and

reduce cost of test.

100 mohm measurement range for ultra-low impedance test

Option E4980A-001 can provide a 100 mohm measurement range for ultra-low

impedance measurements,1while option 4284A-001 only provides a 1 ohm

measurement range.2

Wider measurement range, same accuracy

E4980A extends the test frequency range up to 2 MHz and enhances the accu-

racy capability to meet the stringent requirements of today's devices. Figures 1

and 2 shows the calculated measurement range graph for both the 4284A and

E4980A LCR meters based on their specifications. The measurement range of

the E4980A is wider than 4284A with the same accuracy across frequency

ranges making this instrument more suitable for both low and high impedance

measurements.

1.E-02

1.E-01

1.E+00

1.E+01

1.E+02

1.E+03

1.E+04

1.E+05

1.E+06

1.E+07

1.E+08

1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07

Test frequency [Hz]

1% Accuracy measurement range [ohm]

4284A

E4980A

Condition:

Test signal: 1 Vrms

Test time: MED

Cable length = 0 m

At room temperature

1. Test signal voltage is over 2 Vrms and the test signal current is not more than 100 mA.

2. Test signal voltage is over 2 Vrms and the test signal current is not more than 200 mA.

Figure 1. Measurement range comparison

(accuracy = 1%)

Improved measurement stability

Figure 3 shows the data fluctuation comparison of low and high impedance

measurements based on the results of 100 continuous measurements. (DC

bias: OFF, Cable length: 0 m, Temperature: 25 ºC) The graphs in Figure 3 show

that the E4980A enhances both the measurement data fluctuation and the

measurement time.

The graphs in Figure 4 show the E4980A set up as “SHORT, Avg=11”. The test

time is similar to the 4284A's “SHORT” mode test times, but the data fluctua-

1.E-03

1.E-02

1.E-01

1.E+00

1.E+01

1.E+02

1.E+03

1.E+04

1.E+05

1.E+06

1.E+07

1.E+08

1.E+09

1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07

Test frequency [Hz]

10% Accuracy measurement range

[ohm]

4284A

E4980A

Condition:

Test signal: 1 Vrms

Test time: MED

Cable length = 0 m

At room temperature

Measured standard deviation

-3.0E-05

-2.0E-05

-1.0E-05

0.0E+00

1.0E-05

2.0E-05

3.0E-05

0102030405060708090100

Times

Data de viation [ohm]

E4980A SHORT

4284A SHORT

Measured standard deviation

-1.0E-05

-5.0E-06

0.0E+00

5.0E-06

1.0E-05

0102030405060708090100

Times

Data de viation [ohm]

E4980A MED

4284A MED

E4980A SHORT Av15.6 ms 2.45



ohm

4284A SHORT Av130 ms 8.82



ohm

Standard deviation

Measurement time er oint

E4980A MED Av1 88 ms 0.42 

ohm

4284A MED Av1 180 ms 1.68 

ohm

Standard deviation

Measurement time er oint

E4980A MED Av1 88 ms 0.12 

4284A MED Av1180 ms 0.19 

Standard deviation

Measurement time er oint

E4980A SHORT Av15.6 ms 0.77 

4284A SHORT Av130 ms 1.39 

Standard deviation

Measurement time er oint

Measured standard deviation

-3.0E-15

-2.0E-15

-1.0E-15

0.0E+00

1.0E-15

2.0E-15

3.0E-15

0102030405060708090100

Times

4284A SHORT

E4980A SHORT

Measured standard deviation

-6.0E-16

-3.0E-16

0.0E+00

3.0E-16

6.0E-16

0102030405060708090100

Times

4284A MED

E4980A MED

Data deviation [] Data deviation []

Low impedance measurement High impedance measurement

DUT: 1 mohm resistor, freq: 100 kHz, 10 Vrms DUT: 1pF capacitor, freq: 1 MHz, 20 mVrms

Figure 2. Measurement range comparison

(accuracy = 10%)

Figure 3. Data ﬂuctuation comparisons of the E4980A and the 4284A using SHORT and MED with the same average number of 1

tion has been greatly improved. The data fluctuation in this example is similar

to the 4284A's data fluctuation in “MED” mode.

Speed:

Faster measurement speeds

The E4980A offers more than 5 times faster in SHORT mode, and approximately

two times faster measurement speed in MED mode than the 4284A; this is the

best speed in its class. Maximum speed and repeatability can be achieved

using the three measurement modes (SHORT/MED/LONG) with the average

function. See Figure 5.

The E4980A precision LCR meter's fast measurement speed, combined with

high accuracy and measurement repeatability, provides accurate and

high-throughput test capability for both low and high impedance measure-

ments.

Option E4980A-005: For users that do not require the ultimate measurement

speed in a short length of time, an economical, entry model option is available.

1. Measurement time at 1 MHz. For additional details, refer to the E4980A data sheet

(literature number 5989-4435EN).

Measured data fluctuation

-1.0E-05

-5.0E-06

0.0E+00

5.0E-06

1.0E-05

0102030405060708090100

Times

Data deviation [ohm]

E4980A SHORT (Avg11)

4284A SHORT

E4980A (SHORT, Avg=11) 27.6 ms 0.23 fF

4284A (SHORT, Avg=1) 30 ms 1.39 fF

Standard deviation

Measurement time per point

E4980A (SHORT, Avg=11) 28.6 ms 0.94

ohm

4284A (SHORT, Avg=1) 30 ms 8.82

ohm

Standard deviation

Measurement time per point

Measured data fluctuation

-3.0E-15

-2.0E-15

-1.0E-15

0.0E+00

1.0E-15

2.0E-15

3.0E-15

0102030405060708090100

Times

4284A SHORT

E4980A SHORT (Avg11)

Data deviation [F]

Low impedance measurement High impedance measurement

DUT: 1 mohm resistor, freq: 100 kHz, 10 Vrms DUT: 1pF capacitor, freq: 1 MHz, 20 mVrms

Figure 4. Data ﬂuctuation comparisons of the E4980A and the 4284A using SHORT with the same measurement time

Figure 5. Measurement time1comparison of the

standard E4980A and 4284A LCR meters

The entry model offers the same level of accuracy, only with 2 to 5 times less

speed than the standard model.

Faster data transfer speed

The E4980A's GPIB data transfer speed is 5 to 40 times faster than the data transfer

speed of the 4284A.

GPIB data transfer speed comparison of E4980A vs 4284A

100

1000

COMP

OFF COMP

ON List

10 points 128 set buffer List

201 points

Data size

Total transfer time [ms]

4284A ASCIII

4284A Binary

E4980A ASCII

E4980A Binary

COMP ON: Comparator function is On

COMP OFF: Comparator function is OFF

List 10 points: list sweep is set at 10 points

128 set buffer: buffer memory stores and

transfers 128 sets of the data.

List 201 points: list sweep is set at 201 points

COMP

OFF

COMP

List

10 points

128 set

buffer

List

201 points

E4980A ASCII 22.16 4.82 28.95 44.33

Binary 1.96 1.98 4.64 21.67 33.09

4284A ASCII 10.74 11.6 60.33 723.03

Binary 4.62 5.57 28.88 315.51

Figure 6. Measurement speed: standard E4980A LCR

vs. economy model E4980A-005 LCR vs. 4284A LCR

Figure 7. GPIB data transfer rates for the E4980A and

4284A LCR meters

From the data shown above, it is easy to conclude that the E4980A provides

higher throughput than the 4284A; further lowering cost of test in manufactur-

ing environments.

Shorter cycle time

Enhanced measurement and data transfer times result in shorter cycle time.

Figure 8 compares the total measurement times of the E4980A, the

E4980A-0051and the 4284A LCRs. As you can see, the E4980A offers 2 to more

than 5 times improvement in measurement speed.

0.0000 0.5000 1.0000 1.5000 2.0000 2.5000

4284A

Short

E4980A-005

Short (DispOFF)

E4980A Short

(DispON)

E4980A Short

(DispOFF)

4284A

Med

E4980A-005

Med (DispOFF)

E4980A Med

(DispON)

E4980A Med

(DispOFF)

Measurement time [s]

Measure time Data trans time

Actual measurement setup:

DUT: 1pF capacitor

Freq: 1 MHz

Test signal level: 30 mVrms

10 points bias current list sweep

Comparator function: OFF

Measurement rang hold

AVG = 1, OSL: OFF

Bias current: 1, 2, 5, 7, 10, 13, 15,

20, 25, 30 V

2.5 times faster

More than

5 times faster

1. E4980A-005 is the entry model. Please see page 7 for more information.

Figure 8. Measurement speed comparison of the E4980A, E4980A-005 and 4284A LCR meters

(Unit: s) 4284A E4980A-005 E4980A Short E4980A Short 4284A E4980A-005 E4980A Med E4980A Med

Short Short (DispOFF) (DispON) (DispOFF) Med Med (DispOFF) (DispON) (DispOFF)

Measurement

Time

0.6422 0.2599 0.1013 0.0734 2.1642 1.7399 0.9648 0.8904

Date Transfer

Time

0.0516 0.0036 0.0097 0.0036 0.0517 0.0037 0.0097 0.0037

Total Time 0.6938 0.2635 0.1110 0.0070 2.2159 1.7436 0.9745 0.8942

Versatility:

The E4980A provides powerful features to increase test reliability and efficiency. The

instrument has a new user interface that is even easier to use and the measurement

capability to suit your applications.

User friendly interface offers more PC connectivity

Flexible connectivity: Use USB (USB TMC), LAN and GPIB interfaces to control the

E4980A LCR. You can even use a LAN cable with a computer and a Web browser.

USB memory interface: A USB memory device can be used to save setup states,

measurement log data and graphic image files (memory devices only).

Advanced, easy-to-use interface

–New “skip” key enables access lower-level menus quickly and easily

–New larger windows for enhanced readability

–Quick recall to shorten recall time

–New [Preset] key enables fast, easy clearing and resetting of test setups.

Figure 9. Control your instrument remotely and

easily using USB (USB TMC) or LAN connections

Figure 10. A USB memory device can be used to

save set up states, data or graphs

Figure 11. Large display mode example



The E4980A provides more accurate evaluation under actual usage situations. This

is due to:

–Enhanced frequency point resolution, 0.01 Hz (min.) and 4-digit resolution in every

frequency range.

–10 times enhanced resolution of test signal voltage and DC bias voltage (max.).

–Test signal: Min. 100 uV (1 mV for the 4284A)

–Bias voltage: Min. 330 uV (1 mV for the 4284A)

–Enhanced data display: 7 digit resolution for the E4980A (6 digit resolution for the 4284A),

and a new DISP:ENAB OFF command to turn off the display completely saving display

refresh time.

–Delay time: Min 100us (1 ms for the 4284A) for step delay. Min 100 us (N/A for the 4284A)

for trigger delay.



With the E4980A LCR, you can set frequency, measurement range and stimulus

conditions as list parameters (up to 201). Set two parameters independently to achieve

measurements results under a variety of conditions.

Add an external PC with a data spreadsheet application such as Microsoft Excel, to

simplify character analysis of impedance vs frequency (test signal, DC bias, etc.).

Freq. test signal DC bias, etc.

Impedance

100

200

300

400

500

600

700

50k 100k 150k 200k

Frequency [Hz]

Z: E4980A

Z: 4284A

|Z| [ohm]

Figure 12. Increased frequency resolution enhances

test accuracy

Figure 13. 201 point list sweep lets you

set your own parameters

Ce manuel convient aux modèles suivants

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