Micsig High Voltage Differential Probe -- MDP Series

Bandwidth: 300MHz / 400MHz / 500MHz

1. Overview

Originated from Micsig's cutting-edge SigOFIT™ technology, the MDP series high-voltage differential probe has a very low noise floor, excellent amplitude-frequency characteristics, and industry-leading common mode rejection capability, allowing users to test high-frequency and high-voltage signals with ease.

2. Characteristics

Model	MDP703	MDP704	MDP705	MDP1503	MDP1504	MDP1505	MDP3003	MDP3004	MDP3005
Bandwidth	300MHz	400MHz	500MHz	300MHz	400MHz	500MHz	300MHz	400MHz	500MHz
Rise time	<1.2ns	<0.87ns	≤0.7ns	<1.2ns	≤0.87ns	≤0.7ns	<1.2ns	≤0.87ns	≤0.7ns
Attenuation	20X / 200X	50X / 500X	100X / 1000X	20X / 200X	50X / 500X	100X / 1000X	20X / 200X	50X / 500X	100X / 1000X
Accuracy	±2%	±2%	±2%	±2%	±2%	±2%	±2%	±2%	±2%
Max. input Differential Voltage (DC+AC PK)	70V (20X) 700V (200X)	150V (50X) 1500V (500X)	300V (100X) 3000V (1000X)	70V (20X) 700V (200X)	150V (50X) 1500V (500X)	300V (100X) 3000V (1000X)	70V (20X) 700V (200X)	150V (50X) 1500V (500X)	300V (100X) 3000V (1000X)
Max. Voltage to ground	CAT I 600V CAT II 450V	CAT II 1000V CAT III 600V	CAT III 1000V	CAT I 600V CAT II 450V	CAT II 1000V CAT III 600V	CAT III 1000V	CAT I 600V CAT II 450V	CAT II 1000V CAT III 600V	CAT III 1000V
Noise	20X: ≤ 80mVrms 200X: ≤ 100mVrms	50X: ≤ 200mVrms 500X: ≤ 250mVrms	100X: ≤ 400mVrms 1000X: ≤ 500mVrms	20X: ≤ 80mVrms 200X: ≤ 100mVrms	50X: ≤ 200mVrms 500X: ≤ 250mVrms	100X: ≤ 400mVrms 1000X: ≤ 500mVrms	20X: ≤ 80mVrms 200X: ≤ 100mVrms	50X: ≤ 200mVrms 500X: ≤ 250mVrms	100X: ≤ 400mVrms 1000X: ≤ 500mVrms
CMRR	DC: >-80dB; 100kHz: >-70dB 20MHz: >-40dB; 120MHz: >-26dB	DC: >-80dB; 100kHz: >-70dB 20MHz: >-40dB; 120MHz: >-26dB	DC: >-80dB; 100kHz: >-70dB 20MHz: >-40dB; 120MHz: >-26dB	DC: >-80dB; 100kHz: >-70dB 20MHz: >-40dB; 120MHz: >-26dB	DC: >-80dB; 100kHz: >-70dB 20MHz: >-40dB; 120MHz: >-26dB	DC: >-80dB; 100kHz: >-70dB 20MHz: >-40dB; 120MHz: >-26dB	DC: >-80dB; 100kHz: >-70dB 20MHz: >-40dB; 120MHz: >-26dB	DC: >-80dB; 100kHz: >-70dB 20MHz: >-40dB; 120MHz: >-26dB	DC: >-80dB; 100kHz: >-70dB 20MHz: >-40dB; 120MHz: >-26dB
Input impedance	16MΩ/0.5pF(differential) 8MΩ/1pF(each input to ground)	16MΩ/0.5pF(differential) 8MΩ/1pF(each input to ground)	20MΩ/0.5pF(differential) 10MΩ/1pF(each input to ground)	16MΩ/0.5pF(differential) 8MΩ/1pF(each input to ground)	16MΩ/0.5pF(differential) 8MΩ/1pF(each input to ground)	20MΩ/0.5pF(differential) 10MΩ/1pF(each input to ground)	16MΩ/0.5pF(differential) 8MΩ/1pF(each input to ground)	16MΩ/0.5pF(differential) 8MΩ/1pF(each input to ground)	20MΩ/0.5pF(differential) 10MΩ/1pF(each input to ground)
Delay	8.44ns(20X) 7.9ns(200X)	8.44ns(50X) 7.9ns(500X)	8.44ns(100X) 7.9ns(1000X)	8.44ns(20X) 7.9ns(200X)	8.44ns(50X) 7.9ns(500X)	8.44ns(100X) 7.9ns(1000X)	8.44ns(20X) 7.9ns(200X)	8.44ns(50X) 7.9ns(500X)	8.44ns(100X) 7.9ns(1000X)
Output voltage	≤3.5V	≤3V	≤3V	≤3.5V	≤3V	≤3V	≤3.5V	≤3V	≤3V
Output impedance	50Ω	50Ω	50Ω	50Ω	50Ω	50Ω	50Ω	50Ω	50Ω
Overrange	LED flashes, Buzzer beeps
Dimensions	Control module: LWH: 91 3315/mm Signal box: LWH: 100 * 36 * 20 /mm
Cable length	Approx. 8 cm (Input); Approx. 120cm (Output)
Temperature	Operating: 0°C ~ 40 °C Non-operating: -30 °C ~ 70 °C
Humidity	Operating: 5~85% RH (0℃~40 ℃) Non-operating: 5% ~ 85% RH (≤40 °C); 5% ~ 45% RH (40℃~70 ℃)

3. Panel Description

Control Module

Button Panel

Auto Zero Button

Range LED Indicator

Range

Range Selection Button

Cable to signal box

BNC signal output

Signal Box

Signal input: Negative

Signal input: Positive

Cable to Control Module

4. Precautions

Calibrate the probe before use:
Short-circuit the input ends, power on, press “Zero” button. Range indicator lights flash alternately; if hearing a “Di” sound, means calibration succeeded; if hearing a "DiDiDi” sound, means calibration failed, needs to recalibration;
The bandwidth of the oscilloscope should be no less than the bandwidth of the probe, channel input impedance should be 50Ω.
Recommend to use after 10 minutes warm-up to get more accurate result.
When Range LED indicator flashes and beeps rapidly, indicating Over-voltage warning, please switch to higher range.

5. Operation Steps

Power the probe: Connect the probe to the oscilloscope USB via USB-C cable;
Connect to oscilloscope: Connect the BNC end of the probe to oscilloscope channel (make sure the oscilloscope is grounded);
Select Range: Select appropriate voltage range according to the signal;
Connect the DUT: Use clips or hooks to connect the DUT, if an over-voltage alarm occurs, disconnect the power supply and the circuit immediately;
Set on the oscilloscope.
*Note: Try not to use extension leads when measuring, it could bring more noise floor. If must use the extension leads, please twist the leads together to reduce noise, and the input frequency should not exceed 5MHz. If it exceeds 5MHz, the output will have a certain error.

6. Warranty

Micsig warrants the main body of this differential probe for 1 year. During the warranty period, Micsig will be responsible for free maintenance for any failure caused by the quality of the product under normal use.
Under the following circumstances, Micsig will refuse to provide maintenance services or charge for a fee:
- No packaging or anti-counterfeiting label.
- Anti-counterfeit label has been altered or blurred beyond recognition.
- Unauthorized disassembly, such as: changing wires, dismantling internal components, etc.
- No sales voucher or the content of sales voucher does not match the product.

7. Safety Precautions

Non-professionals do not open the product casing;
Do not use while case is open;
Do not touch any bare metal while testing;
Disconnect the power supply and circuit immediately when over range;
Do not use in flammable and explosive environments;

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