Integrated Circuits
Data Sheet
ET9580LH-5
3 CHANNEL DIFFERENTIAL AMPLIFIER, COMPARATOR w/BALANCE ADJUST
(Standard logic applications.)
FEATURES
- Supply Voltage To 5V
- Designed for photodiode inputs
- Ungated Z (index) channel
- Current sink for LED drive (see application note APP-D2)
- Outputs short circuit protected
- 25mA peak drive current
- Comparator hysteresis only 1.1 : 1
APPLICATIONS
- High Speed Optical Encoders
- Industrial Controls
This part is available in two packages, the 24 lead SOIC, and the 28 lead TSSOP. It is available also in chip form.
| PACKAGE |
SUFFIX |
| Chip Only |
-C |
| 24 Lead SOIC |
-SOP |
| 28 Lead TSSOP |
-TSP |
DESCRIPTION
While the ET9580LH-5 is very similar in performance to the ET9580LH, it is targeted for applications with 5V supply voltages. Applications previously using the 9580LH, with 5V supplies, may substitute this device as an equivalent part. For applications that require higher output voltages, (>5V), customers should consider using this device with a buffer device from the line driver category, such as the ET7272. For input imbalance trimming, see application note APP-D1.
ABSOLUTE MAXIMUM RATINGS
| Parameter |
Symbol |
Min. |
Max. |
Units |
Ref. |
| Operating Temperature Range |
TA |
-40 |
125 |
°C |
Note 1 |
| Supply Voltage Range |
VCC |
4.5 |
5.5 |
V |
- |
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, typical values given at VCC=5V, TA = 25°C, with LED and RSET open.
| Parameters |
Symbol |
Min. |
Typ. |
Max. |
Units |
Test Conditions |
| Supply Current |
ICC |
4.5 |
7.5 |
11.5 |
mA |
- |
| Input Common Mode Voltage |
VCM |
- |
1.35 |
- |
V |
- |
| Average Photocurrent Input |
IIA |
0.066 |
0.3 |
40 |
A |
Each input (Note 1) |
| Peak Photocurrent Input |
IIP |
0.13 |
0.5 |
60 |
A |
Each input (Note 1) |
| Dark Cell Level |
IID |
0.02 |
0.1 |
20 |
A |
Each input (Note 1) |
| Photocurrent Contrast Ratio |
IIR |
2:1 |
5:1 |
- |
- |
Peak:Dark Cell (Note 1) |
| Comparator Threshold |
- |
- |
1.1:1 |
- |
- |
Ratio of Differential Inputs (Note 1) |
| Output High Level Voltage |
VOH |
2.5 |
3.0 |
- |
V |
IOH = -4mA, VCC = 4.5V |
| Output Low Level Voltage |
VOL |
- |
199 |
400 |
mV |
IOL = 8mA, VCC = 4.5V |
| Output Short-Circuit Current Driving High (All Outputs) |
IOS |
15 |
25 |
50 |
mA |
VCC = 5V, VOUT = 0V |
| Output Short-Circuit Current Driving Low (All Outputs) |
IOS |
30 |
70 |
120 |
mA |
VCC = 5V, VOUT = 5V |
| RSET Voltage |
VRSET |
1.3 |
1.7 |
2.1 |
V |
R = 180 ohms |
AC SWITCHING CHARACTERISTICS (Note 1)
Values given at VCC = 5V, TA = 25°C, CL = 15pF on all outputs, and photocurrent = 1µA minimum.
| Parameters |
Symbol |
Min. |
Typ. |
Max. |
Units |
Test Conditions |
| Pre-Amplifier Bandwidth |
BWPA |
- |
900 |
- |
KHz |
- |
| Propagation delay from Comparator Input to Output |
TPD |
- |
850 |
- |
ns |
- |
| Output Rise Time |
TR |
- |
100 |
- |
ns |
- |
| Output Fall Time |
TF |
- |
20 |
- |
ns |
- |
NOTES:
1. These parameters are controlled by process and are not tested on every lot.
| 24 LEAD SOIC |
 |
 |
| 28 LEAD TSSOP |
 |
 |
ETIC RESERVES THE RIGHT TO MAKE CHANGES AT ANY TIME TO IMPROVE THE DESIGN AND TO SUPPLY THE BEST PRODUCT.
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