PM 6681

2in, 2out, balance & unbalance
PM 6681 is a high-performance data acquisition analyzer with high bandwidth and low distortion.

2-channels input and 2-channels output support both balanced and unbalanced.

Suitable for laboratory RD testing

Specifications

Specifications

AI Specifications

AI Parameters
ADC Precision	24 Bit
ADC Type	Δ-Σ
Sample Rate Range Hz	1k - 192k
FIFO	1024
Mode Of Data Transmission	DMA
Input Range	+/- 125Vp
Gain Error	+/- 0.01dB
Input Impedance	Unbalance：600ohm ，100kohm Balance：600ohm ，200kohm
Flatness	20Hz - 20kHz，192kS/s，＜+/-0.008 dB

AI Idle Noise (uVrms)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	1.4	1.9	2.8
ps：[1]Short circuit source impedance < 50 ohm，Working temperature 23±5℃ [2]AC coupling

AI SNR (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	122	120	117
PS：[1]Differential input, AC coupling, input signal 1kHz sine wave, 2.5Vrms, output impedance 40ohm, Input impedance 200kohm [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AI Dynamic Range (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	120	118	116
PS：[1]Differential input, AC coupling, input signal 1kHz sine wave, 2.5Vrms, output impedance 40ohm, Input impedance 200kohm [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]Hanning window [5]AC coupling

AI, fs=48kS/s, Typical, FFT, 2.5Vrms

AI, fs=96kS/s, Typical, FFT, 2.5Vrms

AI, fs=192kS/s, Typical, FFT, 2.5Vrms

AI THD+N (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	-107	-100	-93
PS：[1]Differential input, AC coupling, input signal 1kHz sine wave, 2.5Vrms, output impedance 40ohm, Input impedance 200kohm [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AI Cross Talk (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	-138	-136	-131
PS：[1]Differential input, AC coupling, input signal 1kHz sine wave, 2.5Vrms, output impedance 40ohm, Input impedance 200kohm [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AO Specifications

AO Parameters
DAC Precision	24 Bit
Sample Rate Hz	1k - 192k
Output Range	+/- 8Vrms（Unbalance），+/- 16Vrms（Balance）
Gain Error	+/- 0.01dB
Output Impedance	Unbalance：50ohm，600ohm Balance： 100ohm，600ohm
Maximum output power of external resistor	4ohm 1.56w ; 8ohm 1.125w
Flatness	10Hz - 10kHz，192kS/s，＜+/-0.01 dB

AO Idle Noise (uVrms)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	1.4	2.0	2.8
PS：[1]Data acquisition device impedance greater than 1 Mohm, Operating temperature of 23±5°C [2]AC coupling

AO SNR (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	122	120	117
PS：[1]Differential Output, AC Coupling, Output signal amplitude of 2.5Vrms (Root Mean Square), Output impedance of 100 ohms, Input impedance of 200 Kohms [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AO Dynamic Range (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	114	112	110
PS：[1]Differential Output, AC Coupling, Output signal amplitude of 2.5Vrms (Root Mean Square), Output impedance of 100 ohms, Input impedance of 200 Kohms [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AO THD+N (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	-106	-101	-93
PS：[1]Differential Output, AC Coupling, Output signal amplitude of 2.5Vrms (Root Mean Square), Output impedance of 100 ohms, Input impedance of 200 Kohms [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling

AO Cross Talk (dB)
Sample Rate	fs=48kS/s	fs=96kS/s	fs=192kS/s
Typical Value	-126	-126	-126
PS：[1]Differential Output, AC Coupling, Output signal amplitude of 2.5Vrms (Root Mean Square), Output impedance of 100 ohms, Input impedance of 200 Kohms [2]Bandwidth, 22,4k、45k、90k [3]Linear weighting [4]AC coupling