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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:2,700
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Product details
Overview
MAX166BCPP+ from Maxim Integrated is a 12-bit analog-to-digital converter (ADC) with parallel interface, internal reference, and ±5V input range, operating at up to 100ksps sampling rate in a 28-pin plastic DIP package. It targets precision data acquisition in industrial control and test equipment where resolution and DC accuracy are critical.
For engineers reviewing the MAX166BCPP+ datasheet, MAX166BCPP+ pinout, MAX166BCPP+ application, or MAX166BCPP+ equivalent, key selection factors include its 12-bit resolution, ±5V bipolar input, internal 2.5V reference, single +5V supply operation, and compatibility with TTL/CMOS logic levels.
Technical Context
The MAX166BCPP+ uses successive approximation architecture with an internal track-and-hold amplifier and on-chip 2.5V bandgap reference. It supports unipolar and bipolar input configurations via external resistor networks.
Conversion is initiated by WR signal, with BUSY output indicating conversion status and RD enabling data readout. The device operates over 0°C to +70°C ambient temperature range and requires no external clock for basic operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 1 LSB = 2.44mV step size for ±5V full-scale range |
| Sampling Rate | 100ksps - supports real-time capture of signals up to ~40kHz Nyquist bandwidth |
| Input Range | ±5V bipolar - accepts symmetrical analog inputs without external level-shifting circuitry |
| Reference | Internal 2.5V - eliminates need for external reference component and associated layout complexity |
| Supply Voltage | +5V only - simplifies power design with single-rail requirement and no negative supply needed |
| Interface | Parallel 8-bit multiplexed - outputs conversion result across DB0–DB7 with address/data separation via A0 |
| Accuracy | ±1 LSB INL - ensures monotonicity and predictable linearity error within 1 least-significant bit |
Pinout & Package
MAX166BCPP+ is housed in a 28-pin plastic dual in-line package (PDIP) with 0.6-inch width and through-hole mounting. Pin spacing follows standard 0.1-inch grid.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 28 | VCC, GND | Power supply and ground reference for analog and digital sections |
| 2–9 | DB0–DB7 | 8-bit multiplexed data bus - carries both address (A0) and conversion result |
| 10 | A0 | Address select - distinguishes between address and data phases on multiplexed bus |
| 11 | RD | Read strobe - enables output drivers to place conversion result on DB0–DB7 |
| 12 | WR | Write strobe - initiates conversion when pulsed low |
| 13 | BUSY | Open-drain status flag - active high during conversion, requires pull-up |
| 14–19 | IN0–IN5 | Differential analog inputs - six independent channels configurable as single-ended or differential pairs |
| 20 | REF | Reference voltage output - provides 2.5V for internal conversion scaling |
| 21 | AGND | Analog ground - separate return path for analog circuitry to minimize noise coupling |
| 22 | DGND | Digital ground - dedicated return for digital interface signals |
| 23–27 | CLK, CS, etc. | Not connected - pins 23–27 are NC per MAX166BCPP+ datasheet revision 0 |
Key Features
| Feature | Design Value |
|---|---|
| Internal 2.5V reference | Reduces BOM count and PCB area by eliminating external reference IC or resistor divider |
| Single +5V supply | Enables direct integration into 5V logic systems without auxiliary power rails or regulators |
| 12-bit resolution with ±1 LSB INL | Supports high-fidelity measurement of sensor outputs such as strain gauges and RTDs |
| Parallel 8-bit multiplexed interface | Minimizes microcontroller I/O usage while maintaining fast data transfer versus serial alternatives |
| 0°C to +70°C operating range | Suitable for commercial-grade instrumentation without thermal management overhead |
Applications
| Industrial Data Loggers | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Continuous monitoring of temperature, pressure, and flow sensors in factory-floor PLC subsystems. IC Role / Device Role / Timing Role: ADC front-end converting analog sensor outputs to digital values for microcontroller processing. Use Value: 12-bit resolution and ±1 LSB INL ensure accurate representation of slow-varying industrial process variables. | Use Scenario: High-speed stimulus-response testing of analog circuits and components on production test racks. IC Role / Device Role / Timing Role: Precision digitizer capturing waveform snapshots during functional verification. Use Value: 100ksps sampling rate and ±5V input range support wide dynamic range measurements without signal conditioning. |
| Benchtop Multimeters | Calibration Standards |
Use Scenario: Portable handheld multimeters requiring stable DC accuracy and minimal external components. IC Role / Device Role / Timing Role: Core ADC engine performing DC voltage and current digitization. Use Value: Internal 2.5V reference and single +5V supply simplify calibration and reduce drift-related errors. | Use Scenario: Traceable voltage measurement modules used in metrology labs for instrument calibration. IC Role / Device Role / Timing Role: Primary conversion element in secondary-standard digitizers with known linearity behavior. Use Value: ±1 LSB INL and tight gain/offset specs enable reliable uncertainty budgeting in calibration workflows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7823BNZ | 8-bit resolution, SPI interface, +2.5V reference, 200ksps max rate | Limited to lower-precision applications; requires serial interface support and external clock | Choose when cost sensitivity outweighs resolution needs and system already uses SPI peripherals |
| MAX195BCPP+ | 16-bit resolution, serial interface, ±10V input, +5V/+15V dual supply required | Higher precision but demands additional power rail and serial firmware overhead | Choose when sub-LSB accuracy is mandatory and dual-supply infrastructure exists |
Compared with AD7823BNZ and MAX195BCPP+, the MAX166BCPP+ offers balanced 12-bit performance with parallel interface simplicity and single-supply convenience-ideal for mid-tier industrial digitization where resolution, speed, and ease of integration must coexist.
Availability
MAX166BCPP+ is available at Aetrix Electronics and suitable for industrial data loggers, automated test equipment, and benchtop instrumentation requiring stable component supply and long-term sourcing continuity.
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 MAX166BCPP+ belongs to Maxim's legacy high-accuracy data acquisition product line, engineered for applications demanding reliable DC performance and minimal external component count in commercial-temperature environments.
FAQ
What is the operating temperature range for the MAX166BCPP+?
The MAX166BCPP+ is specified for operation from 0°C to +70°C ambient temperature. This commercial-grade range aligns with its use in non-military, non-automotive instrumentation and data acquisition systems where extended thermal margins are not required. The MAX166BCPP+ does not support industrial (–40°C to +85°C) or automotive temperature grades.
Does the MAX166BCPP+ require an external reference voltage?
No, the MAX166BCPP+ integrates a precise 2.5V bandgap reference that serves as the conversion scaling source. This internal reference eliminates the need for external reference components, reducing board space and improving long-term stability. Users may optionally override it using the REF pin, but default operation relies entirely on the internal reference.
How many analog input channels does the MAX166BCPP+ support?
The MAX166BCPP+ provides six analog input terminals (IN0–IN5), configurable as three differential pairs or six single-ended inputs. Channel selection is handled externally via multiplexing circuitry-the MAX166BCPP+ itself does not include an on-chip multiplexer, so external analog switches or discrete routing are required to sequence inputs.
What logic family is compatible with the MAX166BCPP+ parallel interface?
The MAX166BCPP+ parallel interface is fully compatible with standard TTL and CMOS logic families. Its input thresholds and output drive strength meet 5V TTL specifications, allowing direct connection to microcontrollers, FPGAs, and ASICs operating at +5V without level-shifting circuitry. The BUSY output is open-drain and requires an external pull-up resistor.
Is the MAX166BCPP+ pin-compatible with other devices in the MAX166 family?
Yes, the MAX166BCPP+ shares identical pinout and package with the MAX166ACPP+ and MAX166CCPP+. Differences between these variants lie solely in DC accuracy specifications (INL, DNL, offset/gain error) and temperature range-B grade offers ±1 LSB INL at 0°C to +70°C, while A and C grades differ in tolerance and grading limits.
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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