MCP4652-103E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4652-103E/UN is a dual-channel I2C digital potentiometer with 256 steps and 10 kOhm end-to-end resistance featuring non-volatile EEPROM wiper memory in an MSOP-10 package. Offers 2 kHz bandwidth per channel. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4652-103E/UN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8370(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP4652-103E/UN?
- Dual independent 10 kOhm, 256-step potentiometer channels with non-volatile EEPROM wiper storage, retaining calibrated positions across power cycles without MCU re-initialization
- I2C 2-wire interface supports up to 8 devices on one bus, with both channels addressable independently, minimizing microcontroller I/O pin count in multi-channel systems
- 256-step resolution gives approximately 39 Ohm per step on a 10 kOhm ladder, doubling the resolution of 128-step alternatives for finer gain and offset trimming accuracy
- 2 kHz small-signal bandwidth per channel for audio-range volume control, active filter tuning, and low-frequency signal conditioning applications
- MSOP-10 compact package with 1.8 V to 5.5 V supply range and sub-1 µA standby current for space and power-constrained portable and wearable designs
What is MCP4652-103E/UN used for?
The MCP4652-103E/UN targets dual-channel gain control, stereo audio volume adjustment, and differential sensor bridge calibration where two independently addressable 10 kOhm, 256-step I2C potentiometers with persistent wiper memory must occupy minimal PCB space in a single MSOP-10 package. Its non-volatile EEPROM retains factory-programmed calibration constants through power cycles, reducing firmware overhead in portable medical instruments and industrial process monitors. The 1.8 V to 5.5 V supply and 2-wire I2C interface suit microcontroller platforms that already use I2C for sensors and need dual-channel programmable resistance without adding an SPI peripheral.
What are the specifications of MCP4652-103E/UN?
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Additional Feature | THE RESISTOR ARRAY VALUES ARE 5000 OHM,10000 OHM, 50000 OHM |
| Bandwidth-Nom | 2kHz |
| Control Interface | 2-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5.5V |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.6mA |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Total Resistance-Nom | 100000Ω |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP4652-103E/UN datasheet?
MCP4652-103E/UN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4652-103E/UN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How fine is the resistance adjustment resolution of the MCP4652-103E/UN compared to a 128-step, 10 kOhm potentiometer?
The MCP4652-103E/UN provides 256 steps across a 10 kOhm end-to-end resistance, yielding approximately 39 Ohm per step. A 128-step, 10 kOhm device such as the MCP4532-103E delivers about 78 Ohm per step — exactly double the step size. The 256-step resolution is advantageous in precision gain-setting networks where a 39 Ohm increment translates to less than 0.4% full-scale error in a 10 kOhm feedback divider, meeting the accuracy needs of 12-bit ADC reference trimming and instrumentation amplifier gain calibration.
Does the MCP4652-103E/UN save wiper positions through a power cycle and what is the EEPROM endurance?
Yes. The MCP4652 includes on-chip EEPROM that stores both channel wiper positions independently. Microchip rates the EEPROM for a minimum of 100,000 erase/write cycles per byte and greater than 40 years data retention at 55°C. A single I2C write command both updates the volatile wiper register (for immediate resistance change) and optionally commits the value to EEPROM for persistence. This allows an MCU to make temporary wiper adjustments during runtime without consuming EEPROM write cycles for every change.
How many MCP4652-103E/UN devices can share a single I2C bus and what address configuration is used?
Up to 8 MCP4652 devices can share one I2C bus. The device address is formed from a fixed 3-bit device code combined with 2 hardware address pins (A0, A1), providing 4 unique I2C addresses for the 10 kOhm variant. Additional address expansion to 8 devices is achieved by combining multiple resistance values (5 kOhm, 10 kOhm, and 50 kOhm variants) that share the same device code structure. At 400 kHz fast-mode I2C, a host MCU can update both channels of all 8 devices in under 400 µs.
For a stereo audio application, how does the dual-channel MCP4652-103E/UN simplify volume control compared to two single-channel devices?
The MCP4652 integrates 2 independent 10 kOhm wiper channels in one MSOP-10 package, halving chip count versus two single-channel MSOP-8 potentiometers. Both channels share the same I2C address and can be updated sequentially in one I2C session, reducing the code complexity of synchronized left-right level adjustments. The EEPROM ensures that the last volume setting (for example, code 128 at approximately 5 kOhm per channel) persists across power cycles, so a stereo device powers on at the previously selected volume without a startup ramp sequence.
What minimum wiper resistance does the MCP4652-103E/UN exhibit and how should it be accounted for in a gain calculation?
The MCP4652 has a typical wiper contact resistance of 75 Ohm, which appears in series with the resistor ladder at code 0. In a non-inverting amplifier gain network where the potentiometer sets the feedback divider, the 75 Ohm wiper resistance adds a small systematic gain offset. For a 10 kOhm total resistance at code 128 (approximately 5 kOhm wiper-to-terminal), the 75 Ohm offset represents only 1.5% error, which can be compensated in firmware by adjusting the code by 2 steps upward to correct the gain to the target value.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2400 | $1.24 |
| 10+ | $1.1500 | $11.50 |
| 25+ | $1.1100 | $27.75 |
| 100+ | $0.9500 | $95.00 |
| 1000+ | $0.8900 | $890.00 |
| 5000+ | $0.8370 | $4185.00 |
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