ACPL-782T-500E 查看數據表（PDF） - Avago Technologies
零件编号
产品描述 (功能)
生产厂家
ACPL-782T-500E Datasheet PDF : 18 Pages
| |||
Notes:
General Note: Typical values represent the mean value of all
characterization units at the nominal operating conditions. Typical drift
specifications are determined by calculating the rate of change of the
specified parameter versus the drift parameter (at nominal operating
conditions) for each characterization unit, and then averaging the
individual unit rates. The corresponding drift figures are normalized to
the nominal operating conditions and show how much drift occurs as
the par-ticular drift parameter is varied from its nominal value, with all
other parameters held at their nominal operating values. Note that the
typical drift specifications in the tables below may differ from the slopes
of the mean curves shown in the corresponding figures.
1. Avago Technologies recommends operation with VIN- = 0 V (tied to
GND1). Limiting VIN+ to 100 mV will improve DC nonlinearity and
nonlinearity drift. If VIN- is brought above VDD1 – 2 V, an internal test
mode may be activated. This test mode is for testing LED coupling
and is not intended for customer use.
2. This is the Absolute Value of Input Offset Change vs. Temperature.
3. Gain is defined as the slope of the best-fit line of differential output
voltage (VOUT+–VOUT-) vs. differential input voltage (VIN+–VIN-) over
the specified input range.
4. This is the Absolute Value of Gain Change vs. Temperature in PPM
level.
5. Nonlinearity is defined as half of the peak-to-peak output deviation
from the best-fit gain line, expressed as a percentage of the full-scale
differential output voltage.
6. NL100 is the nonlinearity specified over an input voltage range of
±100 mV.
7. The input supply current decreases as the differential input voltage
(VIN+–VIN-) decreases.
8. The maximum specified output supply current occurs when the
differential input voltage (VIN+–VIN-) = -200 mV, the maximum
recommended operating input voltage. However, the output supply
current will continue to rise for differential input voltages up to
approximately -300 mV, beyond which the output supply current
remains constant.
9. Because of the switched-capacitor nature of the input sigma-delta
converter, time-averaged values are shown.
10. When the differential input signal exceeds approximately 308 mV,
the outputs will limit at the typical values shown.
11. Short circuit current is the amount of output current generated when
either output is shorted to VDD2 or ground.
12. CMRR is defined as the ratio of the differential signal gain (signal
applied differentially between pins 2 and 3) to the common-mode
gain (input pins tied together and the signal applied to both inputs
at the same time), expressed in dB.
13. Output noise comes from two primary sources: chopper noise and
sigma-delta quantization noise. Chopper noise results from chopper
stabilization of the output op-amps. It occurs at a specific frequency
(typically 400 kHz at room temperature), and is not attenuated by
the internal output filter. A filter circuit can be easily added to the
external post-amplifier to reduce the total RMS output noise. The
internal output filter does eliminate most, but not all, of the sigma-
delta quantization noise. The magnitude of the output quantization
noise is very small at lower frequencies (below 10kHz) and increases
with increasing frequency.
14. CMTI (Common Mode Transient Immunity or CMR, Common Mode
Rejection) is tested by applying an exponentially rising/falling
voltage step on pin 4 (GND1) with respect to pin 5 (GND2). The
rise time of the test waveform is set to approximately 50 ns. The
amplitude of the step is adjusted until the differential output (VOUT+–
VOUT-) exhibits more than a 200 mV deviation from the average
output voltage for more than 1Ps. The ACPL-782T will continue to
function if more than 10 kV/Ps common mode slopes are applied, as
long as the breakdown voltage limitations are observed.
15. Datasheet value is the differential amplitude of the transient at the
output of the ACPL-782T when a 1 Vpk-pk, 1 MHz square wave with 40
ns rise and fall times is applied to both VDD1 and VDD2.
16. In accordance with UL 1577, each optocoupler is proof tested by
applying an insulation test voltage ≥4500 VRMS for 1 second (leakage
detection current limit, II-O ≤ 5 PA). This test is performed before the
100% production test for partial discharge (method b) shown in IEC
60747-5-5/DIN EN 60747-5-2 Insulation Characteristic Table.
17. The Input-Output Momentary Withstand Voltage is a dielectric
voltage rating that should not be interpreted as an input-output
continuous voltage rating. For the continuous voltage rating refers to
the IEC 60747-5-5/DIN EN 60747-5-2 insulation characteristics table
and your equipment level safety specification.
18. This is a two-terminal measurement: pins 1–4 are shorted together
and pins 5–8 are shorted together.
8
Share Link: 