AD7755BRS Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices AD7755BRS is a high-accuracy single-phase energy metering IC in a 24-pin SSOP package designed for active energy measurement. Features on-chip analog-to-digital conversion and pulse frequency output for watt-hour metering. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 24
- Lifecycle
- OBSOLETE
- Datasheet
- AD7755BRS Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of AD7755BRS?
- Single-phase active energy measurement with high accuracy across 1000:1 dynamic range for precision metering
- On-chip sigma-delta ADCs with anti-aliasing filters enabling direct connection to current and voltage transducers
- Pulse frequency output (CF pin) proportional to active power for simple energy accumulation in microcontroller-based meters
- 24-pin SSOP package in 0.3" body width enabling compact single-phase electricity meter PCB designs
What is AD7755BRS used for?
The AD7755BRS is purpose-built for residential and commercial single-phase electricity meters where accurate active energy measurement is required per IEC 62052 and ANSI C12 standards. Its differential analog inputs accept signals from current transformers or shunts and a resistor-divided voltage channel, making it straightforward to design a complete meter with minimal external components. The CF pulse output simplifies integration with low-cost microcontrollers or mechanical counters in smart meter and sub-metering applications.
What are the specifications of AD7755BRS?
| YTEOL | 0 |
| Analog IC - Other Type | ANALOG CIRCUIT |
| JESD-30 Code | R-PDSO-G24 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP24,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Min (Vsup) | 4.75V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Where can I find the AD7755BRS datasheet?
AD7755BRS Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for AD7755BRS?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What dynamic range and accuracy does the AD7755BRS achieve in energy metering applications?
The AD7755BRS achieves better than 0.1% error over a 1000:1 dynamic range of load current, making it suitable for Class 1 or better electricity meters per IEC 62052. The on-chip sigma-delta ADCs sample at high oversampling ratios, providing 16-bit effective resolution on both current and voltage channels.
How does the CF pulse output of the AD7755BRS simplify watt-hour accumulation in a meter design?
The CF (calibration frequency) output emits pulses at a rate proportional to instantaneous active power, typically calibrated to 1000 to 3200 pulses per kWh. A microcontroller or optocoupler simply counts these pulses to accumulate energy, eliminating the need for complex DSP calculations and reducing firmware complexity in single-phase meter designs.
What package does the AD7755BRS use, and how does it fit on a compact meter PCB?
The AD7755BRS is housed in a 24-pin SSOP (Shrink Small Outline Package) with 0.3" body width and 0.635 mm pin pitch, occupying roughly 8.2 mm x 5.3 mm of board area. This compact footprint allows single-phase energy meters to use a minimal PCB, with adequate spacing for the mains-side isolation barrier between the current-sensing and voltage-sensing sections.
When should a designer consider AD7755BRS over a newer energy metering IC such as ADE7755?
The ADE7755 is the pin-compatible successor to the AD7755BRS with improved specifications including lower offset drift over -40°C to +85°C temperature range. For legacy meter designs or replacement components in existing 24-pin SSOP footprints, AD7755BRS can be used where the original 0.1% accuracy requirement is sufficient and redesign cost is unjustifiable.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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