iC-OF

3-BIT OPTO ENCODER

Rev C1, Page 5/6

ELECTRICAL CHARACTERISTICS

Operating Conditions: VCC= 5V ±10%; Tj= -40..125 °C, unless otherwise noted.

Item

Symbol

Parameter

Conditions

Tj

Fig.

Unit

EC

Min.

Typ.

Max.

This specification is for a newly developed product. iC-Haus therefore reserves the right to change or update, without notice, any information contained

herein, design and specification; and to discontinue or limit production or distribution of any product versions. Please contact iC-Haus to ascertain the

current data.

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in the materials. The data specified is intended solely for the purpose of product description. No representations or warranties, either express or implied, of

merchantability, fitness for a particular purpose or of any other nature are made hereunder with respect to information/specification or the products to which

information refers and no guarantee with respect to compliance to the intended use is given. In particular, this also applies to the stated possible

applications or areas of applications of the product.

iC-Haus conveys no patent, copyright, mask work right or other trade mark right to this product. iC-Haus assumes no liability for any patent and/or other

trade mark rights of a third party resulting from processing or handling of the product and/or any other use of the product.

As a general rule our developments, IPs, principle circuitry and range of Integrated Circuits are suitable and specifically designed for appropriate use in

technical applications, such as in devices, systems and any kind of technical equipment, in so far as they do not infringe existing patent rights. In principle

the range of use is limitless in a technical sense and refers to the products listed in the inventory of goods compiled for the 2008 and following export trade

statistics issued annually by the Bureau of Statistics in Wiesbaden, for example, or to any product in the product catalogue published for the 2007 and

following exhibitions in Hanover (Hannover-Messe).

We understand suitable application of our published designs to be state-of-the-art technology which can no longer be classed as inventive under the

stipulations of patent law. Our explicit application notes are to be treated only as mere examples of the many possible and extremely advantageous uses our

products can be put to.

Analog Outputs NI0..2

501

CR()

Current Ratio

I(NIi) / (I(DPi)-I(DNi))

V(NIi)= 0.3V..VCC-1.2V,

I(DPi)= 3..90nA, I(DNi)= 90..3nA

27

550

720

850

502

I0()

Leakage Current

V(NI)= 0.3V..VCC-1.2V,

I(DPi,DNi)= 0

-1.5

1.5

A

503

fo()

Cut-off Frequency

V(NIi)= constant,

sinussoidal waveform,

I(DPi)= 3..30nA, I(DNi)= 30..3nA

100

kHz

504

fo()

Cut-off Frequency

V(NIi)= constant,

sinussoidal waveform,

I(DPi)= 6..60nA, I(DNi)= 60..6nA

200

kHz

505

fo()

Cut-off Frequency

R(VCC/NIi)= 50k ,

R(NIi/GND)= 50k , CL()= 30pF

50

80

kHz

506

Vc(S)hi

Clamp Voltage hi

Vc()hi= V()-VCC; I()= 3mA

0.4

1.5

V

507

Vc(S)lo

Clamp Voltage lo

I()= -3mA

-1.5

-0.4

V

APPLICATIONS INFORMATION

Wiring of the analog outputs NI0..2

The analog outputs each consist of two current sources in a push-pull configuration. One of these works towards

GND as a sink, the other works as a source coming from VCC. The voltage swing at the output pins NI0..2 is

determined by the external wiring - the saturation voltage of the current sources must be taken into account.

The simplest configuration is to connect the outputs to a voltage divider consisting of two resistors, wired from

VCC against GND (with 50k

respectively, for example). Any resulting load capacities can reduce the cutoff

frequency of the analog signals.

In view of the suppression of the supply voltage, however it may be preferable to use an op-amp as a current-

voltage converter (transconductance amplifier) if the reference potential is suitably stable.