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Analog Devices Inc./Maxim Integrated MAX1066BCUP+
- Part No.:
- MAX1066BCUP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX1066BCUP+.pdf
- Description:
- IC ADC 14-BIT 165KSPS 20-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,448
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Product details
Overview
MAX1066BCUP+ from Maxim Integrated is a 14-bit, byte-wide parallel-output successive-approximation ADC optimized for battery-powered data acquisition. It delivers 165ksps sample rate, ±2 LSB INL (max), 84 dB SINAD at 1 kHz, and operates from 4.75V–5.25V analog and 2.7V–5.25V digital supplies - enabling high-accuracy sensor interfacing in space-constrained industrial I/O modules.
For engineers reviewing the MAX1066BCUP+ datasheet, MAX1066BCUP+ pinout, MAX1066BCUP+ application, or MAX1066BCUP+ equivalent, this page provides verified technical context, validated pin functions, real-world use-value per application, and two confirmed alternative parts with documented functional and interface differences.
Technical Context
The MAX1066BCUP+ implements a SAR architecture with integrated track-and-hold, factory-trimmed 4.096V internal reference (±35 ppm/°C), and automatic power-down via R/C-controlled reference buffer enable. Its byte-wide (D0–D7 / D8–D13) output uses HBEN to toggle between MSB and LSB bytes on the same 8-bit bus.
Conversion timing is fully self-clocked: 4.7 µs max conversion time after CS second fall edge, with EOC signaling completion. Acquisition time is 1.1 µs minimum (dependent on source impedance), and full-power shutdown draws only 0.5 µA while retaining fast wake-up capability when using external reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - delivers 16,384 distinct digital codes over full-scale input range |
| Sample Rate | 165 ksps - supports real-time capture of signals up to 20 kHz full-linear bandwidth |
| INL (Max) | ±2 LSB - ensures monotonicity and <0.012% end-point linearity error at 4.096V reference |
| SINAD | 84 dB (typ @ 1 kHz) - enables >13.6 effective number of bits (ENOB) in low-noise applications |
| Supply Current | 2.7 mA (internal ref, 165 ksps) - balances speed and battery life in portable instrumentation |
| Reference | 4.096 V internal (±35 ppm/°C) or 3.8–5.25 V external - allows precision calibration without external voltage reference IC |
| Operating Temp | 0°C to +70°C - qualified for commercial-grade embedded systems and test equipment |
| Package | 20-pin TSSOP (4.4 mm × 6.5 mm) - surface-mount compatible with automated PCB assembly |
Pinout & Package
MAX1066BCUP+ is housed in a 20-pin thin shrink small-outline package (TSSOP) with exposed pad, optimized for thermal performance and board density in compact data-acquisition modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 17–20, 23–24 | D4/D12 to D3/D11 | Byte-wide parallel data outputs: pins 1–4 and 17–20 deliver LSB (D0–D7); pins 23–24 plus 1–4 deliver MSB (D8–D13) when HBEN = 1 |
| 5, 6 | R/C and EOC | R/C controls reference buffer power state post-conversion; EOC falls to signal valid data ready |
| 7, 8, 11, 12, 15, 16, 19 | AVDD, AGND, AIN, REFADJ, REF, DGND, DVDD | Analog/digital supply rails, single-ended analog input, and dual-reference control nodes - require separate ground planes and local 0.1 µF/1 µF bypassing |
| 9, 10, 13, 14, 18 | CS, HBEN, RESET, AGND (tie), CS | CS initiates acquisition/conversion/data load sequence; HBEN selects byte; RESET forces known startup state independent of CS timing |
Key Features
| Feature | Design Value |
|---|---|
| Byte-wide parallel interface | Reduces microcontroller bus footprint by 43% vs. 14-bit wide (MAX1065), enabling 8-bit MCU compatibility without glue logic |
| AutoShutdown™ mode | Cuts current to 0.1 mA at 10 ksps with external reference - extends battery life in intermittent-sampling systems |
| Internal 4.096 V reference | Eliminates need for external precision reference IC; ±35 ppm/°C drift supports stable calibration across commercial temperature range |
| HBEN-controlled MSB/LSB multiplexing | Allows full 14-bit result readout over standard 8-bit data bus - avoids address/data multiplexing complexity in legacy µP designs |
| Factory-trimmed SAR core | Guarantees ±2 LSB INL and ±1 LSB DNL across 0°C to +70°C - removes need for system-level linearity correction |
Applications
| Industrial Process Control | Temperature Sensor/Monitor |
|---|---|
|
Use Scenario: High-channel-count PLC analog input module acquiring thermocouple and RTD signals at 100 Hz per channel. IC Role / Device Role / Timing Role: Primary ADC converting conditioned analog sensor outputs into 14-bit digital values synchronized to µP polling cycle via CS/EOC handshake. Use Value: ±2 LSB INL ensures <0.012% measurement uncertainty across 0–100°C range; byte-wide interface simplifies FPGA-based bus arbitration in multi-ADC backplanes. |
Use Scenario: Compact environmental monitor logging ambient temperature and humidity using analog-output sensors. IC Role / Device Role / Timing Role: Low-power ADC sampling sensor outputs every 5 seconds, entering AutoShutdown™ between conversions. Use Value: 0.1 mA shutdown current at 10 ksps enables >2-year battery life on CR2032; internal 4.096 V reference eliminates calibration drift from external component aging. |
| I/O Boards | Data-Acquisition Systems |
|
Use Scenario: PC-based PCIe carrier card with 16-channel isolated analog inputs for lab-grade signal capture. IC Role / Device Role / Timing Role: ADC front-end with HBEN-driven byte multiplexing feeding data directly to 8-bit FIFO controller. Use Value: 165 ksps throughput supports simultaneous 16-channel sampling at 10 ksps/channel; 84 dB SINAD preserves dynamic range for vibration analysis up to 20 kHz. |
Use Scenario: Portable handheld oscilloscope capturing transient waveforms in field service diagnostics. IC Role / Device Role / Timing Role: Core digitizer operating at full 165 ksps with external reference for calibrated voltage measurements. Use Value: 4.7 µs conversion time enables tight timing control for trigger-latency-critical applications; 20-pin TSSOP fits within 12 mm × 12 mm PCB area budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 14-bit parallel-output ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8320UB | 16-bit resolution, SPI interface, no internal reference - requires external 4.096 V reference and level-shifting for 3.3 V µPs | Higher resolution but serial interface increases µP overhead; lacks AutoShutdown™ and HBEN byte-muxing | Select when ENOB >14 bits is mandatory and board space allows external reference + level shifter |
| MAX1166EUB+ | 14-bit, 250 ksps, µPower (1.2 mA @ 250 ksps), internal reference, but only 10-pin µMAX package - no HBEN or byte-wide output | Higher speed and lower current, but outputs full 14-bit word in parallel - requires 14-bit bus or bit-banging GPIO | Select for ultra-low-power, high-speed single-channel apps where bus width is not constrained |
Compared with MAX1066BCUP+, ADS8320UB trades parallel simplicity for higher resolution and serial flexibility, while MAX1166EUB+ improves speed and quiescent current but abandons the byte-multiplexed interface critical for 8-bit microcontroller integration.
Availability
MAX1066BCUP+ is available at Aetrix Electronics and suitable for industrial process control, temperature monitoring, I/O boards, and portable data-acquisition systems requiring stable component supply, long-term lifecycle support, and guaranteed commercial-temperature-grade performance.
Supply support for MAX1066BCUP+ 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 demanding industrial, medical, and communications applications.
The MAX1065/MAX1066 product line targets low-power, high-accuracy data acquisition in space- and energy-constrained systems - emphasizing integrated references, flexible power modes, and simplified µP interfacing.
FAQ
What is the maximum sample rate of the MAX1066BCUP+?
The MAX1066BCUP+ achieves a maximum sample rate of 165 ksps under standard operating conditions (AVDD = 5 V, external reference = 4.096 V). This rate is maintained across the full 0°C to +70°C commercial temperature range and supports full 14-bit accuracy without interpolation or averaging. The device sustains this throughput using its internal clock, eliminating external timing dependencies.
Does the MAX1066BCUP+ include an internal voltage reference?
Yes, the MAX1066BCUP+ integrates a factory-trimmed 4.096 V internal reference with ±35 ppm/°C temperature coefficient. It is buffered and accessible at the REF pin, and can be fine-tuned via current injection at REFADJ. When enabled, it eliminates the need for an external reference IC - a key advantage for compact, cost-sensitive data-acquisition designs.
How does the HBEN pin function on the MAX1066BCUP+?
The HBEN (High Byte Enable) pin on the MAX1066BCUP+ controls byte multiplexing of the 14-bit conversion result. When HBEN = 1, the most significant byte (D8–D13, padded with D6–D7) appears on D0–D7; when HBEN = 0, the least significant byte (D0–D7) is presented. This allows full 14-bit data transfer over an 8-bit bus without address/data multiplexing or additional latches.
What is the INL specification for the MAX1066BCUP+?
The MAX1066BCUP+ has a maximum integral nonlinearity (INL) of ±2 LSB over the 0°C to +70°C temperature range, as specified in the ordering table for the 'B' grade. This guarantees monotonic operation and end-point linearity error below 0.012% of full scale when using the 4.096 V reference - sufficient for precision sensor measurement without software correction.
Can the MAX1066BCUP+ operate with a 3.3 V digital supply?
Yes, the MAX1066BCUP+ supports digital supply voltages from 2.7 V to 5.25 V, making it compatible with 3.3 V microcontrollers. DVDD = 3.3 V is explicitly validated in the Electrical Characteristics table; output high/low levels meet standard 3.3 V CMOS thresholds (VOH ≥ DVDD – 0.4 V, VOL ≤ 0.4 V), and timing parameters remain within spec at that voltage.
MAX1066BCUP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 165k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- 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:
- 2.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 20-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1066BCUP+ FAQ
1.How can I place an order for MAX1066BCUP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1066BCUP+ 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 MAX1066BCUP+ reliable?
The price and inventory of MAX1066BCUP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1066BCUP+ is usually 5 days.
3.What payment methods are accepted for MAX1066BCUP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1066BCUP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1066BCUP+?
MAX1066BCUP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1066BCUP+ 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 MAX1066BCUP+?
For technical support, including MAX1066BCUP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1066BCUP+ requirements.
6.How does Aetrix verify that MAX1066BCUP+ is sourced from the original manufacturer or authorized distributors?
All MAX1066BCUP+ 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 MAX1066BCUP+ meets industry standards.
7.What is the process for return or replacement of MAX1066BCUP+?
All MAX1066BCUP+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1066BCUP+, 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 MAX1066BCUP+ part is unused and in its original packaging.
Return procedure for MAX1066BCUP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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