QOAL400
Quad Op-Amp Loop

Scheduled Release 2Q05
Printable Version

The QOAL400 module is a precision instrument capable of measuring all common parameters of an Op Amp, including AC as well as DC parameters.

The QOAL400 has four completely independent channels, which allow a quad device to be tested in a minimum amount of time. Each channel has a full set of resources to measure all common parameters. Parameters such as Av, Vos, Ib, Ios, GBW, Slew Rate, Rise Time, Supply Current, PSRR, CMRR, Vout, Iout, etc. may all be measured with this card. This is the only card necessary for the MTS-2010 to fully test a quad Op Amp IC.

The QOAL400 uses an onboard controller, which relieves the system CPU of performing many functions necessary for the module operation. The result is higher efficiency of the CPU and faster execution of the module commands. All measurements use the “Zero Time Average” (ZTA) circuit (patent pending) that allows for a measurement time of less then 250 us to the full 16-bit resolution. ZTA enables the QOAL400 to obtain the repeatability of using 20 to 50 measurements and averaging the results, with a single measurement.

Specifications

DUT Supply Voltage A/B ±20V; 1A; Force Voltage, Measure Voltage/Current
Voltage Accuracy ± 0.05%, Current ± 0.5%
Load Resistors 1 K Ohms; 10 K Ohms; 100 Ohms; 1% - User on DUT Board
Op Amp Test Loop .
Vos 2 Ranges: 100 mV - ±0.5 mV/10 mV ± 0.05 mV
Ios/Ib 3 Ranges: 10 uA ±50 nA/1 uA ± 5 nA/100 nA ± 0.5 nA
Av 100 dB ± 1 dB
Common Mode Range ± 15 V
Sine Wave Generator .
Frequency 1 Hz – 1 MHz
Amplitude 1 mV; 10 mV; 100 mV; 1 V RMS
Pulse Generator .
Rise Time 20 nS
Fall Time 20 nS
Amplitude 100 mVp-p; 200 mVp-p; 1Vp-p; 2Vp-p
Period 1 S – 1 uS
Pulse Width ½ Period
RMS-DC Converter .
Ranges 1 mV; 10 mV; 100 mV; 1 V
Accuracy 0.25% of Range @ F > 10 KHz
Max Frequency 1 MHz
Min Frequency 100 Hz


*All specifications are subject to change without notice.