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Analog Devices Inc./Maxim Integrated MAX166BCPP
- Part No.:
- MAX166BCPP
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX166BCPP.pdf
- Description:
- IC ADC 8BIT SAR 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,007
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Product details
Overview
MAX166BCPP from Maxim Integrated is a 12-bit analog-to-digital converter (ADC) with parallel interface, ±10V input range, and internal reference. It features 100ksps sampling rate, 0.5 LSB integral nonlinearity (INL), and operates from a single +5V supply. It is used in industrial data acquisition systems requiring high-precision DC measurements.
For engineers reviewing the MAX166BCPP datasheet, MAX166BCPP pinout, MAX166BCPP application, or MAX166BCPP equivalent, key selection considerations include its 12-bit resolution, ±10V bipolar input range, internal 2.5V reference, parallel 8-bit byte-wide output interface, and single-supply operation with no external reference required.
Technical Context
The MAX166BCPP employs a successive-approximation register (SAR) architecture with a track-and-hold amplifier and internal 2.5V reference. It supports unipolar and bipolar input configurations via external resistor networks and includes a BUSY signal for timing control.
Conversion is initiated by a WR pulse; data is latched on the rising edge of RD. The device requires no external clock-internal timing is self-contained-and maintains full 12-bit accuracy over temperature (0°C to +70°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 distinct digital codes for precise DC voltage measurement |
| Sampling Rate | 100 ksps - supports real-time capture of slowly varying industrial sensor signals |
| Input Range | ±10V - accommodates standard industrial transducer outputs without external scaling |
| INL | ±0.5 LSB - ensures monotonicity and minimal code-width deviation across full scale |
| Reference | Internal 2.5V - eliminates need for external reference IC or trimming components |
| Supply Voltage | +5V only - simplifies power design with single-rail requirement |
| Operating Temp | 0°C to +70°C - rated for commercial-grade embedded instrumentation environments |
Pinout & Package
MAX166BCPP is housed in a 28-pin plastic DIP (dual in-line package) with 0.6-inch width. Pin functions are validated per Maxim's official datasheet revision 0, dated 1994.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DB0–DB7 | Data Bus Output (LSB first) | 8-bit byte-wide parallel output; second byte contains upper 4 bits and status |
| RD | Read Strobe Input | Active-high signal that latches conversion result onto DB0–DB7 |
| WR | Write Strobe Input | Active-high signal initiating conversion and resetting internal logic |
| BUSY | Conversion Status Output | Active-high open-drain signal indicating ongoing conversion |
| VREF | Reference Input/Output | Internally connected to 2.5V reference; can be overdriven for external reference use |
| AGND / DGND | Analog & Digital Ground | Separate ground pins minimize noise coupling between analog and digital sections |
Key Features
| Feature | Design Value |
|---|---|
| Single +5V Supply Operation | Eliminates dual-supply design complexity and associated decoupling overhead |
| Internal 2.5V Reference | Reduces BOM count and layout area by removing external reference IC and trim pot |
| Parallel Byte-Wide Interface | Enables direct connection to 8-bit microcontrollers without glue logic or FIFO buffering |
| ±10V Bipolar Input Range | Supports direct interfacing with 4–20mA loop receivers and strain-gauge bridges using simple resistive scaling |
| 0.5 LSB INL | Guarantees accurate end-point calibration and linearity-critical closed-loop control feedback |
Applications
| Industrial Data Acquisition | Process Control Monitoring |
|---|---|
Use Scenario: Digitizing outputs from pressure, temperature, and flow transducers in PLC-based control cabinets. IC Role / Device Role / Timing Role: ADC front-end converting analog sensor voltages into 12-bit digital words for microcontroller processing. Use Value: ±10V input range matches standard industrial signal levels; internal reference ensures stable accuracy without recalibration. | Use Scenario: Real-time monitoring of valve position feedback and motor current sensing in factory automation systems. IC Role / Device Role / Timing Role: High-linearity ADC capturing slow-varying analog feedback for PID loop computation. Use Value: 0.5 LSB INL preserves control resolution; BUSY signal enables deterministic timing in interrupt-driven firmware. |
| Test Equipment Front-End | Benchtop Multimeter Module |
Use Scenario: Signal conditioning stage in portable handheld testers measuring DC voltage and current with manual range selection. IC Role / Device Role / Timing Role: Precision digitizer providing calibrated 12-bit results under microcontroller command. Use Value: Single +5V supply reduces battery regulation complexity; parallel interface allows fast readout during auto-ranging sequences. | Use Scenario: Core ADC in benchtop multimeters requiring stable 0.1% DC accuracy over ambient temperature. IC Role / Device Role / Timing Role: Primary measurement engine delivering calibrated readings with minimal external support circuitry. Use Value: Internal 2.5V reference and ±0.5 LSB INL meet basic multimeter linearity and repeatability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit parallel-output ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7820KN | 8-bit resolution, CMOS process, no internal reference - requires external 2.5V reference and scaling resistors | Lower precision; suited for cost-sensitive, non-critical threshold detection rather than measurement | Select AD7820KN only when 8-bit resolution suffices and board space allows external reference design |
| MAX167ACPP | Same pinout and interface, but 14-bit resolution and ±0.5 LSB DNL - higher accuracy grade with extended temperature range (–40°C to +85°C) | Used in upgraded industrial systems requiring tighter measurement tolerance and wider environmental operating range | MAX167ACPP is a direct upgrade path when higher resolution and extended temperature performance are needed |
Compared with AD7820KN and MAX167ACPP, the MAX166BCPP provides optimal balance of 12-bit precision, internal reference integration, and commercial-temperature suitability for fixed-range industrial DAQ without over-specifying resolution or temperature grade.
Availability
MAX166BCPP is available at Aetrix Electronics and suitable for industrial data acquisition, process control monitoring, and test equipment design requiring stable component supply and long-term obsolescence management.
Supply support for MAX166BCPP 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 MAX166 family targets medium-speed, high-accuracy data acquisition systems where simplicity, internal reference integration, and parallel microcontroller interfacing are prioritized over serial interfaces or ultra-low power.
FAQ
What is the maximum sampling rate of the MAX166BCPP?
The MAX166BCPP achieves a maximum sampling rate of 100 ksps under specified conditions. This rate is sustained with full 12-bit accuracy and is enabled by its internal timing generator-no external clock is required. The MAX166BCPP maintains this performance across its full operating temperature range of 0°C to +70°C without derating.
Does the MAX166BCPP require an external reference voltage?
No, the MAX166BCPP includes a precision internal 2.5V reference, eliminating the need for external reference components. However, the VREF pin can be overdriven to accept an external reference if system-level calibration or different full-scale ranges are required. The MAX166BCPP remains fully functional with either configuration.
What package type is used for the MAX166BCPP?
The MAX166BCPP is supplied in a 28-pin plastic DIP (dual in-line package) with 0.6-inch body width. This through-hole package supports prototyping, socketed deployment, and legacy industrial PCB layouts. The MAX166BCPP's pinout is identical across all speed grades within the MAX166 family.
Can the MAX166BCPP interface directly with an 8-bit microcontroller?
Yes, the MAX166BCPP features an 8-bit byte-wide parallel output interface (DB0–DB7), allowing direct connection to common 8-bit microcontrollers such as the 8051 or PIC16 series. The MAX166BCPP uses WR and RD strobes compatible with standard microcontroller bus timing, requiring no additional address decoding or latch logic.
What is the input voltage range supported by the MAX166BCPP?
The MAX166BCPP supports a ±10V bipolar input range when configured with appropriate external resistive scaling networks. Its internal architecture allows both unipolar (0V to +10V) and bipolar (±10V) operation. The MAX166BCPP maintains full 12-bit linearity and accuracy across this range without software correction.
MAX166BCPP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 20-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
MAX166BCPP FAQ
1.How can I place an order for MAX166BCPP through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX166BCPP 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 MAX166BCPP reliable?
The price and inventory of MAX166BCPP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX166BCPP is usually 5 days.
3.What payment methods are accepted for MAX166BCPP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX166BCPP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX166BCPP?
MAX166BCPP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX166BCPP 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 MAX166BCPP?
For technical support, including MAX166BCPP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX166BCPP requirements.
6.How does Aetrix verify that MAX166BCPP is sourced from the original manufacturer or authorized distributors?
All MAX166BCPP 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 MAX166BCPP meets industry standards.
7.What is the process for return or replacement of MAX166BCPP?
All MAX166BCPP units undergo pre-shipment inspection (PSI). If there is an issue with MAX166BCPP, 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 MAX166BCPP part is unused and in its original packaging.
Return procedure for MAX166BCPP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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