4816P-R2R-503 datasheet(59/62 Pages) BOURNS

59 / 62 page

Specifications are subject to change without notice.

335

Voltage Divider

Voltage dividers are used to step down voltages for analog

processing. Applications are found in multi-meters, oscillo-

scopes, oscillator stage of voltage control oscillators, etc. The

application needs precise resistors to ensure that errors are not

added during the conversion process.

THICK FILM VS. THIN FILM

STANDARD VS. PRECISION

90K

900K

VIN

VOUT

VIN

VOUT

100

VIN

VOUT

1000

VIN

VOUT

10,000

Data Conversion

Data converters are used to convert digital data to analog sig-

nals or vice versa. The precision of the high bit affects the over-

all precision of the data convertor. Thus, thick film resistors are

used in the lower bits while the thin film or bulk foil resistors are

used in the high order bits.

N 1

EREF

E OUT

EREF

R F

PARALLEL CODE

INPUT DATA WORD

Parallel bit conductance switching D/A converter.

Thick Film

Thin Film

Parameter

Circuits

Resistance

Ω to 20MΩ

Ω to 100KΩ

Resistance Tolerance

.5%, 1%, 2%, 5% .1%, .2%, .5%

TCR

±100ppm/°C

±25ppm/°C

TCR Tracking

100ppm/°C

5ppm/°C

Operating Temperature

-55°C to +125°C -55°C to +125°C

Max. Operating Voltage

100 volts

50 volts

Resistor Power

.125W to .5W

.1W to .2W

Thin Film Applications

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