E4991B Impedance Analyzer

Data Sheets

E4991B Impedance Analyzer

1 MHz to 500 MHz/1 GHz/3 GHz

Definitions

Specification (spec.)

Warranted performance. All specifications apply at 23 °C ± 5 °C unless otherwise stated, and 30 minutes after the instrument has been turned on. Specifications include guard bands to account for the expected statistical performance distribution, measurement uncertainties, and changes in performance due to environmental conditions.

Typical (typ.)

Expected performance of an average unit which does not include guardbands. It is not covered by the product warranty.

Nominal (nom.)

A general, descriptive term that does not imply a level of performance. It is not covered by the product warranty.

Measurement Parameters and Range

Measurement parameters

Impedance parameters:

– |Z|, |Y|, Ls , Lp, Cs , Cp, Rs(R), Rp, X, G, B, D, Q, θz , θy , |Γ|, Γx , Γy , θr , Vac, Iac, Vdc, Idc (Option E4991B-001 only)

Material parameters (Option E4991B-002):

(see “Option E4991B-002 material measurement (typical)” on page 19)

– Permittivity parameters: |εr |, εr ’, εr ”, tanδ

– Permeability parameters: |µr |, μr ’, μr ”, tanδ

Measurement range

Measurement range (|Z|):

– 120 mΩ to 52 kΩ

– (Frequency = 1 MHz,

– Point averaging factor ≥ 8,

– Oscillator level = –3 dBm; or = –13 dBm,

– Measurement accuracy ≤ ± 10%,

– Calibration is performed within 23 °C ± 5 °C,

– Measurement is performed within ± 5 °C of calibration temperature)

Source Characteristics

Frequency

Range:

– 1 MHz to 3 GHz (Option 300)

– 1 MHz to 1 GHz (Option 100)

– 1 MHz to 500 MHz (Option 050)

Resolution: 1 mHz

Accuracy:

– without Option E4991B-1E5:

– ± 10 ppm (23 °C ± 5 °C)

– ± 20 ppm (5 °C to 40 °C)

– with Option E4991B-1E5:

– ± 1 ppm (5 °C to 40 °C)

Stability:

– with Option E4991B-1E5:

– ± 0.5 ppm/year (5 °C to 40 °C) (typical)

Oscillator level

Range:

– Power (when 50 Ω load is connected to test port):

– –40 dBm to 1 dBm

– Current (when short is connected to test port):

– 0.0894 mArms to 10 mArms

– Voltage (when open is connected to test port):

– 4.47 mVrms to 502 mVrms

Resolution: 0.1 dB 1

Accuracy:

(Power, when 50 Ω load is connected to test port)

– Frequency ≤ 1 GHz:

– ± 2 dB (23 °C ± 5 °C)

– ± 4 dB (5 °C to 40 °C)

– Frequency > 1 GHz:

– ± 3 dB (23 °C ± 5 °C)

– ± 5 dB (5 °C to 40 °C)

with Option 010:

– Frequency ≤ 1 GHz

– Minimum: –3 dB, Maximum: +2 dB (23°C ± 5°C)

– Minimum: –5 dB, Maximum: +4 dB (5 °C to 40 °C)

– Frequency > 1 GHz

– Minimum: –4 dB, Maximum: +3 dB (23°C ± 5°C)

– Minimum: –6 dB, Maximum: +5 dB (5 °C to 40 °C)

Output impedance

Output impedance: 50 Ω (nominal)

DC Bias (Option E4991B-001)

DC voltage bias

Range: 0 to ± 40 V

Resolution: 1 mV

Output impedance (series): 15 Ω (typical)

Accuracy:

– ± {0.05% + 5 mV + (|Idc[mA]| x 20 Ω)} (23 °C ± 5 °C)

– ± {0.2% + 10 mV + (|Idc[mA]| x 40 Ω)} (5 °C to 40 °C)

Current limit range: 1 mA to 100 mA (both source and sink are limited to same current.)

Current limit resolution: 2 µA

Current limit accuracy: ± 4% (5 °C to 40 °C, typical)

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