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Analog Devices Inc./Maxim Integrated MAX110ACPE
- Part No.:
- MAX110ACPE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX110ACPE.pdf
- Description:
- IC ADC 14BIT SIGMA-DELTA 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,448
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Product details
Overview
MAX110ACPE from Maxim Integrated is a ±14-bit, 2-channel differential serial ADC with internal auto-calibration, operating from ±5V supplies and delivering 0.03% INL, 550µA supply current, and 50Hz/60Hz rejection - deployed in precision weigh scales and panel meters requiring high-resolution analog sensing without external calibration components.
For engineers reviewing the MAX110ACPE datasheet, MAX110ACPE pinout, MAX110ACPE application, or MAX110ACPE equivalent, this page delivers verified technical context, exact pin functions for DIP-16 package, real-world accuracy specs (±0.03% INL, ±4mV offset), and two validated alternative ADCs for ±14-bit differential measurement systems.
Technical Context
The MAX110ACPE implements a first-order sigma-delta architecture with integrated voltage-to-current converter, integrator, comparator, and 1-bit DAC to produce 16-bit serial output (14 data + sign + overrange). It uses oversampling clock division (÷1/÷2/÷4) and supports both external TTL/CMOS clocks and internal RC oscillator via RCSEL control.
Conversion is initiated by CS rising edge with NO-OP = 1, outputs twos-complement data on DOUT synchronized to SCLK falling edge, and asserts BUSY low during conversion. Internal auto-calibration corrects offset and gain errors under µP control, eliminating need for external trims or reference buffers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | ±14-bit + sign + overrange (16-bit serial output); enables detection of sub-millivolt differential signals within ±3V input range |
| INL (Relative Accuracy) | ±0.03% FSR (max); ensures ≤±2 LSB error across full ±3V input span after calibration |
| Supply Current | 550µA active, 4µA power-down; supports battery-powered remote sensors with multi-year runtime |
| Input Range | Differential ±3V (with ±5V supplies); maps to ±VREF where VREF+ = +1.5V, VREF− = −1.5V |
| Conversion Rate | Up to 50 conversions/sec (204.8ms @ 81,920 clocks/conv); suitable for slow-varying industrial process signals |
| Power Supply Rejection | 30ppm/V; maintains accuracy despite ±5% VDD/VSS variation in noisy plant environments |
| 50/60Hz Rejection | Integrated digital filtering rejects line-frequency interference without external notch filters |
Pinout & Package
MAX110ACPE is housed in a 16-pin plastic DIP (Dual In-line Package) with 0.3-inch body width and through-hole mounting. Pin spacing is 0.1 inch; lead finish is tin-lead. Package meets JEDEC MS-001 standard.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN1+ | Positive input of Channel 1 differential pair; accepts voltage up to VDD − 2.25V (2.75V @ VDD = +5V) |
| 2 | REF− | Negative reference terminal; sets lower bound of differential input range (e.g., −1.5V) |
| 3 | REF+ | Positive reference terminal; sets upper bound of differential input range (e.g., +1.5V) |
| 4 | VDD | +5V analog/digital supply; must be decoupled locally with 0.1µF ceramic capacitor |
| 5 | RCSEL | Selects clock source: tied to GND for external XCLK, tied to VDD for internal RC oscillator |
| 6 | XCLK | Oversampling clock input/output; connects to internal RC oscillator when RCSEL = VDD |
| 7 | SCLK | Serial interface clock input; DC–2MHz compatible; controls timing of DIN/DOUT data transfer |
| 8 | DIN | Serial control word input; loads 16-bit register to configure conversion mode, channel select, and power-down |
| 9 | DOUT | Serial data output; tri-state when CS high; outputs 16-bit result (POL/OFL/D13–D0) MSB-first |
| 10 | BUSY | Open-drain status signal; low during conversion, high when result ready for readout |
| 11 | CS | Chip-select input; active-low enable for serial interface; rising edge with NO-OP=1 starts conversion |
| 12 | IN1− | Negative input of Channel 1 differential pair; defines polarity: VIN− > VIN+ yields negative result |
| 13 | IN2+ | Positive input of Channel 2 differential pair; shares same reference and supply constraints as IN1+ |
| 14 | IN2− | Negative input of Channel 2 differential pair; enables true differential measurement on second channel |
| 15 | VSS | −5V analog supply; must be decoupled; absolute input limits referenced to VSS + 2.25V minimum |
| 16 | GND | Digital ground; separate AGND not used - MAX110ACPE uses single ground plane per DIP layout |
Key Features
| Feature | Design Value |
|---|---|
| Internal auto-calibration | Performs µP-controlled offset and gain correction - eliminates manual trimming and external calibration circuitry |
| No external components required | Operates with only decoupling caps; no external op-amps, references, or filters needed for basic ±14-bit operation |
| 50Hz/60Hz rejection | On-chip digital filtering suppresses mains interference without software or external hardware intervention |
| Low-power shutdown | Reduces current to 4µA - enables wake-on-CS or periodic sampling in energy-constrained remote nodes |
| SPI/QSPI/MICROWIRE compatibility | Direct interface to common microcontroller peripherals without level-shifting or protocol translation logic |
Applications
| Industrial Weigh Scales | Panel Meters |
|---|---|
|
Use Scenario: High-precision load-cell measurement in platform scales and hopper weighing systems. IC Role / Device Role / Timing Role: Primary 2-channel differential ADC acquiring mV-level bridge outputs with auto-zero and gain calibration. Use Value: ±0.03% INL and 50Hz rejection ensure stable readings in electrically noisy factory floors without shielded cabling. |
Use Scenario: Front-panel analog meter replacement in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Serial ADC digitizing 4–20mA loop signals or thermocouple outputs for local display and HART communication. Use Value: 16-pin DIP footprint and SPI interface simplify integration into space-constrained front-end PCBs with minimal BOM count. |
| Data-Acquisition Systems | Temperature Measurement |
|
Use Scenario: Modular DAQ card for lab-grade environmental monitoring with multiple sensor inputs. IC Role / Device Role / Timing Role: Dual-channel simultaneous-sampling ADC capturing thermistor, RTD, and strain gauge signals. Use Value: Internal calibration and ±3V input range support direct connection to unbuffered sensors, reducing signal-chain complexity. |
Use Scenario: Cold-junction compensation and thermocouple linearization in HVAC control units. IC Role / Device Role / Timing Role: Differential ADC measuring µV-level thermocouple EMF against precision reference voltage. Use Value: 14-bit resolution resolves <1°C steps over −200°C to +1372°C (Type K), meeting Class 1 accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ±14-bit differential ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS114S08BIPBSR | 24-bit delta-sigma, single-supply (+3.3V), integrated PGA and burnout current; no internal oscillator | Requires external clock and reference; better suited for ultra-low-noise sensor front-ends with programmable gain | Choose when higher resolution (>16-bit) and integrated PGA are needed; avoid if ±5V dual supply and minimal external parts are mandatory |
| AD7730BRUZ | 24-bit sigma-delta, ±5V supply, 0.003% INL, integrated excitation current sources, but 20-pin TSSOP package | Includes matched current sources for ratiometric bridge sensing; lacks built-in 50/60Hz rejection | Prefer for load-cell applications needing excitation currents; not drop-in due to pinout and timing differences |
Compared with MAX110ACPE, ADS114S08BIPBSR offers higher resolution and integrated signal conditioning but demands more external components and lacks auto-calibration simplicity; AD7730BRUZ provides superior INL and excitation capability but requires PCB redesign for 20-pin TSSOP and external notch filtering.
Availability
MAX110ACPE is available at Aetrix Electronics and suitable for industrial weigh scales, panel meters, and temperature measurement systems requiring stable component supply, long-term obsolescence management, and traceable sourcing from authorized channels.
Supply support for MAX110ACPE 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) designs precision analog, mixed-signal, and power-management ICs for industrial, medical, and communications applications.
The MAX110 family targets cost-sensitive, high-accuracy measurement systems where ±14-bit resolution, dual differential inputs, and self-calibration must coexist in compact DIP/SO packages without external support components.
FAQ
What is the maximum differential input voltage range supported by the MAX110ACPE?
The MAX110ACPE supports a differential input voltage range of ±3V when operated with ±5V supplies and VREF = 3V (VREF+ = +1.5V, VREF− = −1.5V). Within this range, full ±14-bit performance is guaranteed; accuracy degrades beyond ±2.5V per Electrical Characteristics table. Absolute pin voltage must stay between VSS + 2.25V and VDD − 2.25V - i.e., −2.75V to +2.75V at nominal ±5V rails.
Does the MAX110ACPE require external calibration components?
No, the MAX110ACPE does not require external calibration components. Its internal auto-calibration circuitry performs both offset nulling and gain correction under microprocessor control using only the on-chip reference and logic. The MAX110ACPE achieves ±0.03% INL and ±4mV offset error without trim pots, laser-zapped resistors, or external DACs - a key differentiator versus older 14-bit ADCs.
How does the MAX110ACPE handle 50Hz and 60Hz power-line interference?
The MAX110ACPE incorporates on-chip digital filtering that provides inherent 50Hz and 60Hz rejection without external hardware. This is achieved through oversampling and averaging synchronized to integer multiples of line frequency - confirmed in Typical Operating Characteristics plots showing <0.01% residual error at both frequencies. No external notch filters or software averaging is required for compliance with IEC 61000-4-6 immunity levels.
What is the function of the BUSY pin on the MAX110ACPE?
The BUSY pin on the MAX110ACPE is an open-drain status output that goes low at the start of conversion and returns high when the 16-bit result is ready in the output shift register. It enables interrupt-driven or polling-based readout synchronization - critical for deterministic timing in µC-based data loggers. BUSY remains low for exactly tCONV (e.g., 204.8ms at default clock rate), and must not be driven externally.
Can the MAX110ACPE operate with a single +5V supply?
No, the MAX110ACPE requires dual ±5V supplies (VDD = +5V, VSS = −5V) and cannot operate from a single +5V rail. This is intrinsic to its differential input architecture and internal charge-pump-free design. For single-supply operation, the pin-compatible MAX111 series (e.g., MAX111ACPE) must be used - it accepts 0V to +1.5V single-ended or ±1.5V differential inputs with only +5V VDD.
MAX110ACPE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- 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-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
MAX110ACPE FAQ
1.How can I place an order for MAX110ACPE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX110ACPE 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 MAX110ACPE reliable?
The price and inventory of MAX110ACPE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX110ACPE is usually 5 days.
3.What payment methods are accepted for MAX110ACPE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX110ACPE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX110ACPE?
MAX110ACPE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX110ACPE 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 MAX110ACPE?
For technical support, including MAX110ACPE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX110ACPE requirements.
6.How does Aetrix verify that MAX110ACPE is sourced from the original manufacturer or authorized distributors?
All MAX110ACPE 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 MAX110ACPE meets industry standards.
7.What is the process for return or replacement of MAX110ACPE?
All MAX110ACPE units undergo pre-shipment inspection (PSI). If there is an issue with MAX110ACPE, 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 MAX110ACPE part is unused and in its original packaging.
Return procedure for MAX110ACPE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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