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Analog Devices Inc./Maxim Integrated MAX110BCWE
- Part No.:
- MAX110BCWE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX110BCWE.pdf
- Description:
- IC ADC 14BIT SIGMA-DELTA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,487
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Product details
Overview
MAX110BCWE from Maxim Integrated is a ±14-bit, 2-channel serial analog-to-digital converter (ADC) operating from ±5V supplies with differential input range of –3V to +3V. It achieves 0.03% linearity, 550µA active supply current, and 4µA shutdown current, enabling high-resolution battery-powered data acquisition in industrial panel meters and remote sensor nodes.
For engineers reviewing the MAX110BCWE datasheet, MAX110BCWE pinout, MAX110BCWE application, or MAX110BCWE equivalent, this page delivers verified technical context, calibrated performance metrics, SPI/QSPI/MICROWIRE interface timing, and validated alternative options for precision low-frequency measurement systems.
Technical Context
The MAX110BCWE implements a first-order sigma-delta architecture with internal auto-calibration for offset and gain error correction under µP control. Its 16-bit serial output includes sign (POL), overrange (OFL), and 14 data bits in two's-complement format, supporting both differential inputs and ±3V full-scale range when VREF+ = +1.5V and VREF– = –1.5V.
Conversion is synchronized to an oversampling clock (fOSC) derived either from an external TTL/CMOS source or an internal RC oscillator (selected via RCSEL). The device supports programmable conversion times (10,240–102,400 clock cycles) and provides 50Hz/60Hz rejection without external filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | ±14-bit plus sign and overrange bit - delivers 16-bit serial output with unambiguous polarity and saturation detection |
| Linearity (INL) | ±0.03% FSR - ensures monotonicity and <0.5 LSB error across full input range for precision weighing and process control |
| Supply Current | 550 µA at ±5V - enables multi-year operation on coin-cell batteries in remote-sensing applications |
| Shutdown Current | 4 µA - reduces power by >99% during idle periods while preserving calibration state |
| Input Range | ±3V differential (–3V to +3V) - matches standard industrial transducer outputs without external level-shifting |
| Reference Input | VREF+ = +1.5V, VREF– = –1.5V - establishes ±3V full-scale span with 150 µV LSB resolution |
| Conversion Rate | Up to 50 conversions/sec - sufficient for slow-varying signals like temperature, pressure, and strain |
Pinout & Package
The MAX110BCWE is housed in a 16-pin Wide SO (SOIC-W) package with 0.3-inch body width and standard gull-wing leads compatible with automated PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1+, IN1– | Differential Channel 1 Input | Accepts ±3V analog signal; common-mode voltage must stay within (VSS + 2.25V) to (VDD – 2.25V) |
| IN2+, IN2– | Differential Channel 2 Input | Second independent measurement path with identical electrical specs and routing constraints |
| REF+, REF– | Reference Voltage Inputs | Set full-scale range; require stable ±1.5V differential; input current ≤500 nA minimizes loading |
| VDD, VSS | Positive/Negative Supply Rails | ±5V operation; VDD = +5V, VSS = –5V; absolute max ratings: +6V and –6V respectively |
| CS, SCLK, DIN, DOUT | Serial Interface Signals | SPI/QSPI/MICROWIRE-compatible; static shift register supports DC–2 MHz clock; DOUT high-Z when CS high |
| BUSY | Conversion Status Output | Active-low open-drain signal indicating conversion in progress; used for interrupt-driven µP synchronization |
| RCSEL, XCLK | Oversampling Clock Control | RCSEL = VDD selects internal RC oscillator (~1.3–2.8 MHz); RCSEL = GND enables external clock on XCLK |
Key Features
| Feature | Design Value |
|---|---|
| Auto-Calibration Mode | On-demand µP-controlled offset/gain correction eliminates need for manual trimming or external calibration components |
| No External Components Required | Full 14-bit performance achieved with only decoupling capacitors - reduces BOM count and layout area |
| 50Hz/60Hz Rejection | Integrated digital filtering rejects mains interference without external notch filters or software averaging |
| Two Differential Input Channels | Independent CH1/CH2 paths enable simultaneous dual-sensor monitoring (e.g., load cell + temperature reference) |
| Low-Power Serial Interface | Fully static I/O register allows infinite hold time between bytes - simplifies timing-critical µP firmware design |
Applications
| Process Control Monitoring | Weigh Scale Front-End |
|---|---|
Use Scenario: Continuous analog monitoring of 4–20mA loop signals from pressure, flow, or level transmitters in PLC-based control cabinets. IC Role / Device Role / Timing Role: Precision ADC converting conditioned sensor outputs into digital values for closed-loop feedback and HMI display. Use Value: ±0.03% INL and ±550µA supply current enable accurate, low-power field instrumentation with minimal thermal drift. | Use Scenario: High-resolution weight measurement in commercial bench scales using strain-gauge bridges with ratiometric excitation. IC Role / Device Role / Timing Role: Dual-channel differential ADC digitizing bridge outputs while rejecting common-mode noise from mechanical vibration and EMI. Use Value: Two independent channels allow simultaneous measurement of load cell output and reference temperature sensor for real-time compensation. |
| Industrial Panel Meter | Remote Sensor Node |
Use Scenario: Compact front-panel display unit showing voltage, current, or process variable readings in factory automation panels. IC Role / Device Role / Timing Role: Primary ADC interfacing directly to analog inputs and driving microcontroller display logic via SPI. Use Value: 16-pin SO package and SPI compatibility reduce PCB footprint and simplify integration with low-pin-count MCUs. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and gas concentration in unattended outdoor locations. IC Role / Device Role / Timing Role: Low-power ADC acquiring slow-varying sensor data and entering 4µA shutdown between readings to extend battery life. Use Value: 4µA shutdown current and no external calibration parts enable >5-year operation on a single CR2032 cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution serial ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IDGSR | 16-bit delta-sigma ADC, single-supply +2.0V to +5.5V, I²C interface, internal 2.048V reference | Requires I²C host; lacks differential channel switching and 50/60Hz rejection; lower power (150µA active) | Preferred for space-constrained, low-pin-count designs where I²C is available and ±5V supplies are unavailable |
| AD7714BRUZ | 16-bit sigma-delta ADC, ±5V supply, 4 differential/7 single-ended inputs, SPI interface, built-in PGA | Higher channel count and integrated programmable gain amplifier; larger 24-pin TSSOP package; higher cost | Selected when multi-channel expansion or variable gain (1×–128×) is required beyond MAX110BCWE's fixed-gain dual-channel capability |
Compared with ADS1115IDGSR and AD7714BRUZ, the MAX110BCWE offers optimal balance of ±14-bit accuracy, ultra-low shutdown current, and minimal external component count for dedicated dual-channel ±5V industrial measurement - without requiring I²C infrastructure or paying for unused features like PGA or extra inputs.
Availability
MAX110BCWE is available at Aetrix Electronics and suitable for industrial panel meters, weigh scale front-ends, and remote sensor nodes requiring stable component supply across extended production lifecycles.
Supply support for MAX110BCWE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX110 family was designed specifically for low-power, high-accuracy data acquisition in battery-operated and space-constrained instrumentation - emphasizing self-calibration, noise immunity, and minimal external component requirements.
FAQ
What is the operating temperature range for the MAX110BCWE?
The MAX110BCWE is specified for operation from 0°C to +70°C, as indicated by the "C" grade suffix in its ordering code. This commercial-grade temperature range is suitable for indoor industrial equipment, test instruments, and consumer-grade measurement devices where ambient conditions remain controlled. The device's internal auto-calibration maintains ±0.03% INL across this full range without external compensation circuits.
Does the MAX110BCWE support single-ended input configurations?
No, the MAX110BCWE does not support true single-ended inputs. It is strictly a dual differential-input ADC: each channel (IN1±, IN2±) requires a balanced pair referenced to the same VREF+ and VREF–. While the MAX111 variant supports single-ended operation (0V to +1.5V), the MAX110BCWE's architecture and specification are limited to differential signaling with ±3V full-scale range under ±5V supplies.
How does the MAX110BCWE achieve 50Hz/60Hz rejection without external filters?
The MAX110BCWE achieves inherent 50Hz/60Hz rejection through its sigma-delta modulation architecture and precisely timed oversampling clock. With 81,920 clock cycles per conversion (÷2 mode at 1MHz XCLK), the device integrates over exactly 16 or 20 full AC cycles - effectively nulling out periodic interference at those frequencies. This behavior is guaranteed in the Electrical Characteristics table and requires no external passive components or firmware averaging.
Can the MAX110BCWE operate with an external crystal oscillator?
No, the MAX110BCWE does not accept external crystals. Its XCLK pin accepts only TTL/CMOS-level square-wave clocks (DC–2MHz) or connects to the internal RC oscillator (enabled via RCSEL = VDD). Crystal oscillators are incompatible due to drive-level and impedance mismatch; instead, a buffered CMOS clock generator or µP GPIO output should be used for external-clock mode.
What is the function of the BUSY pin on the MAX110BCWE?
The BUSY pin on the MAX110BCWE is an active-low, open-drain output that asserts low at the start of conversion and returns high upon completion. It serves as a hardware handshake signal for microcontrollers - eliminating polling delays and enabling interrupt-driven data acquisition. When used with µP I/O pins, BUSY allows precise synchronization of read operations with conversion end, ensuring valid 16-bit results are captured without timing margin errors.
MAX110BCWE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 50
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- SPI
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External
- Voltage - Supply, Analog:
- ±5V
- Voltage - Supply, Digital:
- ±5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX110BCWE FAQ
1.How can I place an order for MAX110BCWE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX110BCWE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX110BCWE reliable?
The price and inventory of MAX110BCWE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX110BCWE is usually 5 days.
3.What payment methods are accepted for MAX110BCWE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX110BCWE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX110BCWE?
MAX110BCWE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX110BCWE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX110BCWE?
For technical support, including MAX110BCWE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX110BCWE requirements.
6.How does Aetrix verify that MAX110BCWE is sourced from the original manufacturer or authorized distributors?
All MAX110BCWE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX110BCWE meets industry standards.
7.What is the process for return or replacement of MAX110BCWE?
All MAX110BCWE units undergo pre-shipment inspection (PSI). If there is an issue with MAX110BCWE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX110BCWE part is unused and in its original packaging.
Return procedure for MAX110BCWE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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