AD538AD Analog Multipliers & Dividers by Analog Devices

Analog Multipliers & Dividers
Status: Production
Series: AD538
RoHS: Not Compliant
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The AD538 is a monolithic real-time computational circuit which provides precision analog multiplication, division, and exponentiation. The combination of low input and output offset voltages and excellent linearity results in accurate computation over an unusually wide input dynamic range. Laser wafer trimming makes multiplication and division with errors as low as 0.25% of reading possible, while typical output offsets of 100 microV or less add to the overall off-the-shelf performance level. Real-time analog signal processing is further enhanced by the device's 400 kHz bandwidth.The AD538's overall transfer function is Vo=Vy(Vz/Vx)m. Programming a particular function is via pin strapping. No external components are required for one-quadrant (positive input) multiplication and division. Two-quadrant (bipolar numerator) division is possible with the use of external level shifting and scaling resistors. The desired scale factor for both multiplication and division can be set using the on-chip +2 V or +10 V references, or controlled externally to provide simultaneous multiplication and division. Exponentiation with an M value from 0.2 to 5 can be implemented with the addition of one or two external resistors. Direct log ratio computation is possible by utilizing only the log ratio and output sections of the chip. Access to the multiple summing junctions adds further to the AD538's flexibility. Finally, a wide power-supply range of ±4.5 V to ±18 V allows operation from standard ±5 V, ± 12 V and ± 15 V supplies. The AD538 is available in two accuracy grades (A and B) over the industrial (-25°C to +85°C) temperature range and one grade (S) over the military (-55°C to +125°C) temperature range. The device is packaged in an 18-pin TO-118 hermetic size-brazed ceramic DIP. A-grade chips are also available.

Where to Buy

Prices starting from US$127.24

Distributor Stock
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Analog Devices
from US$127.24
365
in stock
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Richardson RFPD
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Features

VOUT = VY (VZ divided by VX)m Transfer Function
Wide Dynamic Range (Denominator) -1000:1
Simultaneous Multiplication and Division
Resistor-Programmable Powers and Roots
No External Trims Required
Low Input Offsets <100 µV
Low Error ±0.25% of Reading (100:1 Range)
+2 V and +10 V On-Chip References
Monolithic Construction

Alternative Descriptions

MULT/DIV ACU IC | Analog Devices
MULTIPLIER/DIVIDER | Richardson RFPD

Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD538AD?

Additional datasheets, footprints and schematics for AD538AD are listed on our Part Details page. You can also find images and similar parts to AD538AD on this page.

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What category does AD538AD fall under?

The AD538AD is listed under Analog Multipliers & Dividers.

Can I view similar or alternative parts?

You can view similar parts to AD538AD when available in the Analog Multipliers & Dividers range under the specifications section at the bottom of the details page.

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Is the AD538AD RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices and Richardson RFPD have stock available or on a lead time for AD538AD.

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