AD7745ARUZ Capacitive-to-Digital and Touch Screen Controllers by Analog Devices

Status: Production
Series: AD7745
RoHS: Compliant
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The AD7745/AD7746 are a high resolution, Σ-Δ capacitance-to-digital converter (CDC). The capacitance to be measured is connected directly to the device inputs. The architecture features inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high linearity (±0.01%), and high accuracy (±4 fF factory calibrated). The AD7745/AD7746 capacitance input range is ±4 pF (changing), while it can accept up to 17 pF common-mode capacitance (not changing), which can be balanced by a programmable on-chip, digital-to-capacitance converter (CAPDAC). The AD7745 has one capacitance input channel, while the AD7746 has two channels. Each channel can be configured as single-ended or differential. The AD7745/AD7746 are designed for floating capacitive sensors. For capacitive sensors with one plate connected to ground, the AD7747 is recommended. The parts have an on-chip temperature sensor with a resolution of 0.1°C and accuracy of ±2°C. The on-chip voltage reference and the on-chip clock generator eliminate the need for any external components in capacitive sensor

Where to Buy

Prices starting from US$5.65

Distributor Stock
Logo for Chip One Stop
Chip One Stop
from US$6.65
333
in stock
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Logo for Newark Electronics
Newark Electronics
from US$9.87
232
in stock
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Logo for element14
element14
from US$8.47
232
in stock
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Logo for Farnell
Farnell
from US$7.99
232
in stock
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Logo for Analog Devices
Analog Devices
from US$5.65
170
in stock
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Logo for Micros
Micros
from US$9.42
10
in stock
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Logo for Richardson RFPD
Richardson RFPD
from US$7.93
-
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Alternative Descriptions

Adc, 24Bit, Tssop-16, -40 To 125Deg C | Newark Electronics
ADC, 24BIT, TSSOP-16, -40 TO 125DEG C | element14
24Bit Capacitance to Digital C | Analog Devices
1x 24-bit | Micros
CONVERTER - ADC | Richardson RFPD


Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD7745ARUZ?

Additional datasheets, footprints and schematics for AD7745ARUZ are listed on our Part Details page. You can also find images and similar parts to AD7745ARUZ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for AD7745ARUZ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view AD7745ARUZ price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does AD7745ARUZ fall under?

The AD7745ARUZ is listed under Capacitive-to-Digital and Touch Screen Controllers.

Can I view similar or alternative parts?

You can view similar parts to AD7745ARUZ when available in the Capacitive-to-Digital and Touch Screen Controllers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the AD7745ARUZ you can contact the distributor directly for product support, shipping queries etc.

Is the AD7745ARUZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for AD7745ARUZ have stock available?

Authorised distributors including Chip One Stop, Newark Electronics, element14, Farnell and Analog Devices have stock available or on a lead time for AD7745ARUZ.

How do I check stock and lead times for all distributors?

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