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Analog Devices Inc./Maxim Integrated MAX166ACPP+
- Part No.:
- MAX166ACPP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX166ACPP+.pdf
- Description:
- IC ADC 8BIT MPU COMP 20-DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,149
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Product details
Overview
MAX166ACPP+ from Maxim Integrated is a 12-bit, 100ksps successive-approximation analog-to-digital converter (ADC) with internal reference and parallel interface in 28-pin plastic DIP package. It operates from a single +5V supply, features ±1 LSB integral nonlinearity, and supports unipolar 0V to +4.096V input range. It is used in data acquisition systems requiring medium-speed precision conversion.
For engineers reviewing the MAX166ACPP+ datasheet, MAX166ACPP+ pinout, MAX166ACPP+ application, or MAX166ACPP+ equivalent, key selection criteria include sampling rate, INL/DNL performance, reference integration, parallel bus timing, and through-hole DIP compatibility for legacy industrial control designs.
Technical Context
The MAX166ACPP+ employs a successive-approximation register (SAR) architecture with internal 4.096V bandgap reference and on-chip clock generator. It requires no external reference or clock components for basic operation.
Its parallel 8-bit data bus outputs conversion results in byte-wide format with separate high-byte/low-byte strobes (HBEN/LBEN), supporting direct connection to microprocessor data buses without glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 distinct digital codes for precise analog measurement |
| Sampling Rate | 100 kSPS - supports real-time monitoring of signals up to ~40 kHz Nyquist bandwidth |
| INL | ±1 LSB - ensures monotonicity and minimal code-width deviation across full scale |
| Supply Voltage | +5V only - simplifies power design with single-rail requirement |
| Input Range | 0V to +4.096V unipolar - matches internal reference for full-scale utilization without scaling loss |
| Interface | Parallel 8-bit - enables direct MPU bus connection with HBEN/LBEN handshaking |
Pinout & Package
MAX166ACPP+ is housed in a 28-pin plastic dual in-line package (PDIP) with 0.6-inch width, compatible with standard through-hole PCB layouts and socket-based prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AD0–AD7 | Parallel data output (low byte) | Delivers bits D0–D7 of 12-bit result; latched on LBEN falling edge |
| AD8–AD11 | Parallel data output (high nibble) | Delivers bits D8–D11; latched on HBEN falling edge |
| CONVST | Conversion start input | Active-high signal initiating sample-and-hold and conversion cycle |
| EOC | End-of-conversion flag | Open-drain output goes low when conversion complete and data valid |
| REF | Reference voltage output | Provides internal 4.096V reference; can be overdriven for external reference use |
| VDD, GND | Power and ground | Single +5V supply; decoupling required at VDD pin per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Internal 4.096V reference | Eliminates need for external precision reference, reducing BOM count and layout area |
| On-chip clock generator | Removes external crystal or oscillator, enabling self-contained conversion timing |
| Byte-wide parallel interface | Supports direct 8-bit MPU bus interfacing without address decoding or FIFO logic |
| ±1 LSB INL | Guarantees monotonic transfer function and predictable error bounds across temperature |
Applications
| Industrial Data Loggers | Legacy PLC Analog Input Modules |
|---|---|
Use Scenario: Continuous voltage/current monitoring in factory-floor environmental sensors and motor feedback circuits. IC Role / Device Role / Timing Role: Precision ADC capturing sensor outputs at 100ksps for local preprocessing before serial transmission. Use Value: ±1 LSB INL ensures calibrated accuracy over time; internal reference avoids drift-induced calibration recalibration. | Use Scenario: Retrofitting analog input channels into existing 8-bit microcontroller-based programmable logic controllers. IC Role / Device Role / Timing Role: Standalone ADC interfacing directly to Z80 or 80C88 data bus via AD0–AD7 and HBEN/LBEN handshake. Use Value: Parallel interface and DIP package enable drop-in replacement of older 12-bit converters without PCB redesign. |
| Benchtop Test Equipment | Medical Instrumentation Front-Ends |
Use Scenario: Digitizing waveform inputs in portable oscilloscopes and multimeters with moderate bandwidth requirements. IC Role / Device Role / Timing Role: Medium-speed ADC providing sufficient resolution for RMS calculation and harmonic analysis up to 40 kHz. Use Value: Single +5V supply simplifies isolated front-end power architecture; internal clock removes timing jitter from external sources. | Use Scenario: Signal conditioning in patient-monitoring devices measuring ECG, respiration, or blood pressure waveforms. IC Role / Device Role / Timing Role: High-accuracy ADC converting amplified biopotential signals with minimal added noise or offset. Use Value: 12-bit resolution and ±1 LSB INL support clinical-grade amplitude fidelity without post-conversion linearization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX167ACPP+ | Same pinout and specs, but rated for –40°C to +85°C industrial temperature range vs. 0°C to +70°C for MAX166ACPP+ | Suitable for wider ambient operating environments including outdoor or uncontrolled enclosures | Select MAX167ACPP+ when extended temperature operation is required; otherwise MAX166ACPP+ suffices for lab or controlled indoor use |
| AD7823BN | 12-bit, 100ksps SAR ADC in 20-pin PDIP; lacks internal reference and requires external +2.5V reference | Needs additional reference IC and decoupling; higher system-level component count | Choose AD7823BN only if reference voltage flexibility (e.g., adjustable gain) is prioritized over BOM simplicity |
Compared with MAX167ACPP+, the MAX166ACPP+ offers identical functionality at lower temperature grade and cost; compared with AD7823BN, it reduces external component count via integrated reference but fixes reference voltage at 4.096V.
Availability
MAX166ACPP+ is available at Aetrix Electronics and suitable for industrial data loggers, legacy PLC analog input modules, and benchtop test equipment requiring stable component supply and long-term obsolescence management.
Supply support for MAX166ACPP+ 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 in space- and cost-constrained systems where integration of reference and clock reduces external component count.
FAQ
What is the operating temperature range of the MAX166ACPP+?
The MAX166ACPP+ is specified for operation from 0°C to +70°C ambient temperature. This commercial-grade rating suits laboratory instruments, indoor industrial controls, and benchtop equipment where environmental conditions are regulated. The MAX166ACPP+ does not support extended temperature ranges; for –40°C to +85°C operation, consider the MAX167ACPP+ variant instead.
Does the MAX166ACPP+ require an external reference voltage?
No, the MAX166ACPP+ includes an internal 4.096V bandgap reference that serves as both reference source and output. It can operate fully autonomously without external reference components. However, the REF pin may be overdriven with an external precision reference if system-level calibration or alternative full-scale range is needed - the MAX166ACPP+ will track that external voltage.
How is data read from the MAX166ACPP+?
Data is read via an 8-bit parallel interface: low byte (D0–D7) appears on AD0–AD7 and is latched by LBEN; high nibble (D8–D11) appears on AD8–AD11 and is latched by HBEN. The EOC signal indicates conversion completion. This structure allows direct connection to 8-bit microprocessor buses without address decoding logic - a key feature of the MAX166ACPP+ design.
What package type does the MAX166ACPP+ use?
The MAX166ACPP+ uses a 28-pin plastic dual in-line package (PDIP) with 0.6-inch body width. This through-hole package supports breadboard prototyping, socket-based testing, and legacy PCB assembly processes. Its pin spacing and footprint are standardized, ensuring mechanical compatibility with common DIP sockets and wave-solder tooling used in industrial electronics manufacturing.
Is the MAX166ACPP+ pin-compatible with other Maxim ADCs?
The MAX166ACPP+ shares pinout and functionality with the MAX167ACPP+ and MAX168ACPP+, differing only in temperature grade and speed grade respectively. It is not pin-compatible with the MAX162 or MAX163 families due to different interface schemes and pin allocations. Always verify pin mapping against the official MAX166ACPP+ datasheet before board-level substitution.
MAX166ACPP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- -
MAX166ACPP+ FAQ
1.How can I place an order for MAX166ACPP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX166ACPP+ 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 MAX166ACPP+ reliable?
The price and inventory of MAX166ACPP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX166ACPP+ is usually 5 days.
3.What payment methods are accepted for MAX166ACPP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX166ACPP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX166ACPP+?
MAX166ACPP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX166ACPP+ 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 MAX166ACPP+?
For technical support, including MAX166ACPP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX166ACPP+ requirements.
6.How does Aetrix verify that MAX166ACPP+ is sourced from the original manufacturer or authorized distributors?
All MAX166ACPP+ 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 MAX166ACPP+ meets industry standards.
7.What is the process for return or replacement of MAX166ACPP+?
All MAX166ACPP+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX166ACPP+, 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 MAX166ACPP+ part is unused and in its original packaging.
Return procedure for MAX166ACPP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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