AD737JNZ - 

RMS to DC Converter, Low Power, 0.3 %, 190 kHz, 0 °C, 70 °C, DIP, 8 Pins


The actual product may differ from image shown

Manufacturer Part No:
Newark Part No.:
Product Range
AD737 Series
Technical Datasheet:
See all Technical Docs

Product Overview

The AD737 series low power/precision monolithic true RMS-to-DC Converter maintains high accuracy while measuring a wide range of input waveforms, including variable duty cycle pulses and triac (phase) controlled sine waves. It is laser trimmed to provide a maximum error of ±0.2mV ±0.3% of reading with sine wave inputs. The small physical size of this converter make it suitable for upgrading the performance of non-RMS precision rectifiers in many applications. Compared to these circuits, the AD737 is higher accuracy at equal or lower cost. The AD737 computes the RMS value of both the AC and DC input voltages and is AC-coupled by adding an input capacitor. In this mode, the AD737 can resolve input signal levels of 100μVrms or less, despite variations in temperature or supply voltage. High accuracy is maintained for input waveforms with crest factors of 1 to 3 and crest factors at 2.5% or less with respect to full-scale input level.
  • Computes true RMS value, average rectified value and absolute value
  • Provides 200mV Full-scale input range (larger inputs with input scaling)
  • Direct interfacing with 3 1/2 digit CMOS analogue-to-digital converters (ADCs)
  • 1012Ω High input impedance
  • 25pA maximum Low input bias current
  • ±0.2mV ±0.3% of reading High accuracy
  • RMS conversion with signal crest factors up to 5
  • 25μA (typical) Standby current low power
  • No external trims needed for specified accuracy


Signal Processing

Product Information

AD737 Series
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.

Associated Products

US continental orders over $49 and under 50 pounds may qualify for free ground shipping. Click the link for the full Terms and Conditions of the offer.

33 In stock

for same day shipping

Available in quantity shown

To order more than shown inventory, contact sales

see cut-off times
$7.59 $ 7.59
Price for:
Multiple: 1 Minimum: 1
Quantity Price Your Price
1 + $10.24
10 + $9.22
25 + $8.67
50 + $8.15
100 + $7.74
250 + $7.27
500 + $6.60
No longer stocked:: No Longer Manufactured::
Add to Cart
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews

Customer Q&A Exchange


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.