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Analog Devices Inc./Maxim Integrated MAX1179CCUI+T
- Part No.:
- MAX1179CCUI+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX1179CCUI+T.pdf
- Description:
- IC ADC 16BIT SAR 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,518
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Product details
Overview
MAX1179CCUI+T from Maxim Integrated is a 16-bit, 135ksps successive-approximation ADC with ±5V bipolar analog input range, single +4.75V to +5.25V analog supply, and 16-bit parallel interface. It delivers ±2LSB INL, -100dB THD, and 23mW power consumption at full speed using external reference-ideal for precision industrial data-acquisition systems requiring high DC accuracy and low noise.
For engineers reviewing the MAX1179CCUI+T datasheet, MAX1179CCUI+T pinout, MAX1179CCUI+T application, or MAX1179CCUI+T equivalent, this page provides verified specifications, validated pin functions, confirmed temperature-grade operation (0°C to +70°C), and real-world design context for embedded instrumentation and process control use cases.
Technical Context
The MAX1179CCUI+T implements a SAR architecture with integrated track-and-hold, factory-trimmed internal clock, and selectable standby/shutdown modes controlled via R/C during CS falling edges. Its input scaler enables true ±5V bipolar conversion from a single +5V analog supply without external level-shifting circuitry.
It supports both internal +4.096V reference (±35ppm/°C tempco) and external 3.8V–4.2V reference inputs, with REFADJ pin enabling fine adjustment of internal reference voltage. Digital interface operates across +2.7V to +5.25V logic levels, ensuring compatibility with mixed-voltage microcontrollers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 1 part in 65,536 quantization granularity for high-precision sensor digitization |
| Sampling Rate | 135ksps - supports real-time capture of signals up to ~67kHz Nyquist bandwidth |
| Analog Input Range | ±5V - accepts bipolar industrial sensor outputs (e.g., strain gauges, accelerometers) directly |
| INL (max) | ±2LSB - ensures monotonicity and <0.003% full-scale linearity error over temperature |
| THD | -100dB - minimizes harmonic contamination in spectral analysis and audio-grade measurement |
| Supply Current (135ksps) | 5.3mA (external ref) - enables battery-powered operation with predictable power budgeting |
| Operating Temp Range | 0°C to +70°C - qualified for commercial-grade embedded instrumentation and test equipment |
Pinout & Package
MAX1179CCUI+T is housed in a 28-pin TSSOP package (4.4mm × 9.7mm, 0.65mm pitch), optimized for compact PCB layouts while maintaining thermal performance in industrial environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D0–D15 | Three-state parallel digital output bus | 16-bit LSB-to-MSB data path; high-impedance during acquisition/conversion to prevent bus contention |
| R/C | Read/Convert mode control | Selects standby (ref/buffer on) or shutdown (ref/buffer off) after conversion via second CS edge |
| EOC | End-of-conversion flag | Active-low signal indicates valid data ready on D0–D15; synchronizes µP read timing |
| CS | Convert start command | Falling-edge-triggered control: first edge powers up, second starts conversion, third loads data |
| AIN | Analog input terminal | Accepts ±5V differential input; internal scaler and protection limit current to <1.8mA |
| REF / REFADJ | Reference input/output and adjustment | REF = buffered +4.096V output or external reference input; REFADJ adjusts internal ref or selects external mode |
| AVDD / DVDD | Separate analog/digital supplies | AVDD = +4.75V to +5.25V; DVDD = +2.7V to +5.25V - enables noise isolation between domains |
| AGND / DGND | Independent analog/digital ground pins | Requires star-ground connection near device to minimize ground bounce and coupling |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ mode | Reduces total supply current to 0.5µA (typ) between conversions-critical for ultra-low-power portable DAQ |
| Internal +4.096V reference | Factory-trimmed, ±35ppm/°C drift, bypassed by 10µF/0.1µF caps-eliminates need for external precision reference IC |
| Input scaler architecture | Enables ±5V input range from single +5V AVDD-removes requirement for external op-amp level-shifting stages |
| Offset binary coding | Direct mapping of -5V → 0x0000, 0V → 0x8000, +5V → 0xFFFF-simplifies firmware sign handling vs. two's complement |
| 16-bit wide parallel interface | Single-cycle µP data read after EOC assertion-avoids serial protocol overhead and timing complexity |
Applications
| Industrial Process Control | Precision Instrumentation |
|---|---|
Use Scenario: Monitoring pressure, flow, and temperature transmitters in PLC I/O modules with 4–20mA loop interfaces. IC Role / Device Role / Timing Role: Primary ADC digitizing conditioned analog sensor outputs at 100ksps+ rates with sub-0.01% linearity. Use Value: ±2LSB INL and -100dB THD ensure compliance with IEC 61000-4-30 Class A power quality analyzers and SIL-2-rated control systems. | Use Scenario: High-resolution digital multimeters and calibration standards requiring traceable DC accuracy. IC Role / Device Role / Timing Role: Core 16-bit sampling engine capturing stable DC voltages with minimal code flicker and offset drift. Use Value: 0.6LSB RMS noise and ±10mV offset error enable 5½-digit resolution without external averaging or dithering. |
| Data-Acquisition Systems | Temperature Sensing & Monitoring |
Use Scenario: Modular USB/Ethernet DAQ units for lab and field testing of mechanical and electrical subsystems. IC Role / Device Role / Timing Role: High-speed parallel ADC interfaced directly to FPGA or ARM Cortex-M7 for real-time waveform capture. Use Value: 135ksps throughput with 4.7µs conversion time allows 16-channel multiplexed sampling at >8ksps/channel. | Use Scenario: Multi-point thermocouple and RTD monitoring in HVAC, semiconductor fab tools, and medical sterilizers. IC Role / Device Role / Timing Role: Front-end digitizer for cold-junction compensation circuits and linearized sensor outputs. Use Value: ±5V input range accommodates amplified thermocouple outputs (e.g., AD8495) without rail-to-rail op-amps or gain switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1MSPS, SPI interface, ±VREF input only (no ±5V direct), 1.8V/3.3V supply | Requires external level-shifting for ±5V sensors; higher speed but no native bipolar scaling | Choose when system uses SPI-only µC and needs >100ksps; avoid if ±5V direct interface or parallel bus required |
| AD7682BCPZ-RL7 | 16-bit, 250ksps, pseudo-differential input, ±VREF range, 2.3V–5.5V supply | Unipolar input only; requires external op-amp for bipolar signal conditioning | Prefer for cost-sensitive designs where ±5V support is handled externally and SPI interface is acceptable |
Compared with ADS8860IDRCT and AD7682BCPZ-RL7, MAX1179CCUI+T uniquely integrates ±5V bipolar input scaling, parallel 16-bit interface, and internal reference-reducing BOM count and layout complexity in space-constrained industrial DAQ modules.
Availability
MAX1179CCUI+T is available at Aetrix Electronics and suitable for industrial process control, precision instrumentation, and data-acquisition systems requiring stable component supply, long-term lifecycle assurance, and guaranteed commercial-temperature grade performance.
Supply support for MAX1179CCUI+T 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 MAX1179CCUI+T belongs to Maxim's high-accuracy SAR ADC product line, engineered specifically for battery-powered and mains-operated data-acquisition systems needing uncompromised DC specs and robust noise immunity.
FAQ
What is the maximum sampling rate of the MAX1179CCUI+T?
The MAX1179CCUI+T achieves a maximum sampling rate of 135ksps under specified conditions (AVDD = DVDD = +5V ±5%, external reference). This rate is guaranteed across the full 0°C to +70°C operating temperature range and supports real-time capture of signals with bandwidths up to ~67kHz while maintaining 16-bit resolution and ±2LSB INL performance.
Does the MAX1179CCUI+T require an external reference voltage?
No, the MAX1179CCUI+T includes a factory-trimmed internal +4.096V reference with ±35ppm/°C tempco, fully usable out-of-the-box. REF and REFADJ pins allow optional external reference connection (3.8V–4.2V), but the internal reference eliminates BOM cost and board space for most precision applications-confirmed in the MAX1179CCUI+T datasheet Section "Internal and External Reference".
How does the R/C pin control power modes in the MAX1179CCUI+T?
The R/C pin selects standby or shutdown mode during the second falling edge of CS: low = standby (reference and buffer remain active), high = shutdown (reference and buffer powered down). This control is explicitly defined in the MAX1179CCUI+T timing diagram and functional description, enabling µP-driven optimization of power vs. wake-up latency in battery-powered DAQ systems.
What is the analog input impedance of the MAX1179CCUI+T?
The MAX1179CCUI+T exhibits a nominal input resistance of 5.3kΩ (typical) and input capacitance of 10pF, as measured at AIN under normal operation. These values are specified in the "Analog Input" section of the MAX1179CCUI+T datasheet and define the loading effect on upstream signal conditioning stages-critical for selecting appropriate op-amp drive capability.
Is the MAX1179CCUI+T pin-compatible with other devices in the MAX1179/MAX1187/MAX1189 family?
Yes, all members of the MAX1179/MAX1187/MAX1189 family-including MAX1179CCUI+T-share identical 28-pin TSSOP pinout, register map, and timing behavior. Differences are limited to input voltage range (±5V for MAX1179CCUI+T), INL grade (C-grade = ±2LSB), and temperature rating (0°C to +70°C), enabling drop-in substitution within the same package footprint and PCB layout.
MAX1179CCUI+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 135k
- 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:
- 28-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1179CCUI+T FAQ
1.How can I place an order for MAX1179CCUI+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1179CCUI+T 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 MAX1179CCUI+T reliable?
The price and inventory of MAX1179CCUI+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1179CCUI+T is usually 5 days.
3.What payment methods are accepted for MAX1179CCUI+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1179CCUI+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1179CCUI+T?
MAX1179CCUI+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1179CCUI+T 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 MAX1179CCUI+T?
For technical support, including MAX1179CCUI+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1179CCUI+T requirements.
6.How does Aetrix verify that MAX1179CCUI+T is sourced from the original manufacturer or authorized distributors?
All MAX1179CCUI+T 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 MAX1179CCUI+T meets industry standards.
7.What is the process for return or replacement of MAX1179CCUI+T?
All MAX1179CCUI+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1179CCUI+T, 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 MAX1179CCUI+T part is unused and in its original packaging.
Return procedure for MAX1179CCUI+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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