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Analog Devices Inc./Maxim Integrated MAX1188BCUP
- Part No.:
- MAX1188BCUP
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX1188BCUP.pdf
- Description:
- 16-BIT, 135KSPS, ADC
- Quantity:
- Payment:
- Shipping:
Inventory:962
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Product details
Overview
MAX1188BCUP from Maxim Integrated is a 16-bit, 135ksps successive-approximation ADC with ±10V bipolar analog input range, single +4.75V to +5.25V analog supply, and byte-wide parallel interface. It features ±2 LSB INL, -100dB THD, and AutoShutdown™ reducing current to 0.4mA at 10ksps - designed for precision industrial process control and medical instrumentation requiring high DC accuracy and low power.
For engineers reviewing the MAX1188BCUP datasheet, MAX1188BCUP pinout, MAX1188BCUP application, or MAX1188BCUP equivalent, this page delivers verified specifications, validated pin functions, confirmed temperature range (-40°C to +85°C), and real-world design context for data-acquisition system integration.
Technical Context
The MAX1188BCUP implements a SAR architecture with integrated track-and-hold and factory-trimmed internal +4.096V reference. Its input scaler enables true ±10V bipolar operation from a single +5V analog supply while limiting input current to ±1.8mA.
Conversion is controlled via three CS edges: first edge powers up and initiates acquisition; second edge starts conversion and selects standby/shutdown mode via R/C; third edge loads 16-bit data onto D0–D15 bus with HBEN toggling high/low byte output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - supports 65,536 distinct digital codes for high-resolution measurement of ±10V signals. |
| Sampling Rate | 135ksps maximum - enables real-time capture of signals up to ~67kHz (Nyquist-limited) in high-speed DAQ systems. |
| INL | ±2 LSB - ensures monotonicity and ≤0.003% full-scale linearity error across temperature for calibrated sensor interfaces. |
| THD | -100dB - minimizes harmonic distortion in precision audio, vibration, or spectral analysis applications. |
| Analog Supply | +4.75V to +5.25V - compatible with standard 5V logic rails and tolerant of ±5% regulation variation. |
| Digital Supply | +2.7V to +5.25V - allows direct interfacing with 3.3V or 5V microcontrollers without level-shifting. |
| Operating Temp | -40°C to +85°C - fully specified for industrial and embedded environments with extended thermal stability. |
Pinout & Package
MAX1188BCUP is housed in a 20-pin TSSOP package (4.4mm × 6.5mm, 0.65mm pitch), optimized for compact PCB layouts and thermal performance in space-constrained instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 17–20 (D0/D8–D7/D15) | Tri-state parallel data outputs | Deliver 16-bit offset-binary result; HBEN selects high/low byte for 8-bit bus compatibility. |
| 5 (R/C) | Read/Convert control input | Configures power-down mode (standby vs. shutdown) on second CS edge and triggers data output on third CS edge. |
| 6 (EOC) | End-of-conversion flag | Active-low signal indicates valid data ready for readback; synchronizes µP timing without polling. |
| 9 (AIN) | Bipolar analog input | Accepts ±10V input via internal scaler; input impedance 7.8kΩ (normal), 6.0kΩ (shutdown); max ±16.5V absolute rating. |
| 11 (REFADJ) | Reference buffer output | Used to fine-tune internal +4.096V reference (±1.5%) or disable buffer for external reference mode when tied to AVDD. |
| 12 (REF) | Reference I/O | Outputs +4.096V (internal mode, bypassed with 10µF) or accepts 3.8V–4.2V external reference (buffered via REFADJ). |
| 13 (HBEN) | High-byte enable | Logic-high selects D8–D15 (MSB byte); logic-low selects D0–D7 (LSB byte) - enables 8-bit data bus interfacing. |
| 14 (CS) | Convert start | Three-edge sequence controls power-up, conversion trigger, and data output; defines acquisition window (tACQ = 2µs). |
| 7,16 (AVDD, DVDD) | Analog/digital supplies | Separate 5V analog and 2.7–5.25V digital rails reduce noise coupling; each requires local 0.1µF + bulk bypassing. |
| 8,10,15 (AGND, DGND) | Analog/digital ground | Star-ground connection point; AGND pins must be tied together externally; DGND isolated except at single-point junction. |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ mode | Reduces total supply current to 0.4mA at 10ksps - extends battery life in portable DAQ without sacrificing wake-up readiness. |
| ±10V bipolar input range | Eliminates external signal conditioning for industrial transducers (e.g., ±10V LVDTs, strain gauges) operating from single 5V supply. |
| Internal +4.096V reference | Factory-trimmed to ±0.98% initial accuracy (4.056V–4.136V) with ±35ppm/°C tempco - enables self-contained calibration without external references. |
| Byte-wide parallel interface | 16-bit tri-state outputs with HBEN multiplexing allow seamless integration with 8-bit microcontroller buses or FPGA I/O banks. |
| Input scaler architecture | Attenuates and shifts ±10V input to match internal DAC range while limiting input current to <1.8mA - protects against overvoltage and simplifies front-end design. |
Applications
| Industrial Process Control | Precision Instrumentation |
|---|---|
Use Scenario: Monitoring pressure, flow, and temperature in PLC-based manufacturing lines with ±10V field transmitter inputs. IC Role / Device Role / Timing Role: High-accuracy ADC capturing sensor outputs at 10–100ksps with minimal drift across ambient temperature swings. Use Value: ±2 LSB INL and -100dB THD ensure <0.003% measurement uncertainty for closed-loop control compliance. | Use Scenario: Digitizing outputs from calibrated laboratory sensors (e.g., thermocouples, RTDs) in benchtop analyzers. IC Role / Device Role / Timing Role: Primary data converter providing 16-bit resolution and low-noise sampling for traceable metrology-grade readings. Use Value: Internal 4.096V reference eliminates external reference drift, enabling stable 16-bit accuracy without recalibration. |
| Medical Diagnostic Equipment | I/O Modules |
Use Scenario: Signal acquisition in portable ECG or EEG devices where low power and high SNR are critical. IC Role / Device Role / Timing Role: Low-power ADC converting biopotential signals with 87dB SNR and 90dB SINAD at 1kHz input. Use Value: AutoShutdown™ cuts current to 0.4mA between samples, extending battery runtime while maintaining fast wake-up (<12ms). | Use Scenario: Modular analog input cards for industrial automation systems requiring hot-swappable, calibrated channels. IC Role / Device Role / Timing Role: Standalone ADC subsystem with parallel interface, supporting configurable sample rates and reference modes. Use Value: TSSOP package and 20-pin layout simplify PCB routing; separate AVDD/DVDD rails minimize digital noise coupling into analog path. |
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 |
|---|---|---|---|
| ADS8688IPW | 8-channel, 16-bit, 500ksps; SPI interface; integrated PGA; ±10.24V input range; requires external reference. | Multi-channel acquisition vs. single-channel MAX1188BCUP; higher throughput but no parallel interface. | Choose ADS8688IPW for multi-sensor systems needing channel scanning; choose MAX1188BCUP for µP-parallel interfacing with minimal firmware overhead. |
| AD7606BSTZ | 8-channel, 16-bit, 200ksps; parallel/SPI; ±10V input; on-chip reference; 6V analog supply required. | Higher channel count and integrated analog front-end, but larger LQFP-64 package and 6V AVDD requirement. | Choose AD7606BSTZ for dense multi-channel designs; choose MAX1188BCUP for space-constrained single-channel applications with 5V-only supply. |
Compared with ADS8688IPW and AD7606BSTZ, the MAX1188BCUP offers the only single-channel, byte-wide parallel 16-bit ADC with ±10V input and internal reference in a 20-pin TSSOP - ideal for legacy µP interfaces and compact embedded DAQ nodes.
Availability
MAX1188BCUP is available at Aetrix Electronics and suitable for industrial process control, precision instrumentation, and medical diagnostic equipment requiring stable component supply across extended temperature ranges.
Supply support for MAX1188BCUP 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX1178/MAX1188 product line delivers low-power, high-accuracy SAR ADCs with integrated references and bipolar input scaling - engineered for battery-powered and space-constrained data-acquisition systems demanding precision without external support components.
FAQ
What is the input voltage range supported by the MAX1188BCUP?
The MAX1188BCUP supports a true bipolar analog input voltage range of ±10V, enabled by its internal input scaler. This allows direct connection to industrial ±10V transmitters without external attenuation or level-shifting circuitry. The device maintains ±2 LSB INL across this full range and operates from a single +4.75V to +5.25V analog supply, making it suitable for systems with strict power rail constraints.
Does the MAX1188BCUP include an internal voltage reference?
Yes, the MAX1188BCUP integrates a factory-trimmed +4.096V internal reference with ±0.98% initial accuracy (4.056V–4.136V) and ±35ppm/°C temperature coefficient. The reference is buffered and available at the REF pin, requiring a 10µF bypass capacitor to AGND. REFADJ allows fine adjustment or disabling of the buffer for external reference use - eliminating the need for external reference ICs in most precision applications.
How does the AutoShutdown™ feature work on the MAX1188BCUP?
The MAX1188BCUP AutoShutdown™ reduces total supply current to 0.4mA at 10ksps by powering down the internal reference and buffer between conversions when R/C is set high on the second falling edge of CS. Full accuracy resumes after a 12ms wake-up time (with 10µF CREF and 0.1µF CREFADJ). This mode extends battery life in portable DAQ systems while preserving fast acquisition capability upon wake-up.
What package type and pin count does the MAX1188BCUP use?
The MAX1188BCUP is supplied in a 20-pin TSSOP package (4.4mm × 6.5mm, 0.65mm pitch) with exposed pad for thermal enhancement. Pin assignments include dual 8-bit data buses (D0–D7 and D8–D15), HBEN for byte selection, R/C for power-mode control, and dedicated AVDD/DVDD/AGND/DGND rails - enabling clean analog-digital separation and compact PCB layout in space-sensitive instrumentation.
Can the MAX1188BCUP interface directly with a 3.3V microcontroller?
Yes, the MAX1188BCUP supports digital logic voltages from +2.7V to +5.25V on DVDD, allowing direct connection to 3.3V microcontrollers without level shifters. Its digital outputs (D0–D15, EOC, HBEN) meet VOH ≥ DVDD–0.4V and VOL ≤ 0.4V under 1.6mA sink, while inputs accept VIH ≥ 0.7×DVDD and VIL ≤ 0.3×DVDD. This ensures robust interoperability with modern low-voltage µPs and FPGAs.
MAX1188BCUP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 4.75V ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- True Bipolar
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 20-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1188BCUP FAQ
1.How can I place an order for MAX1188BCUP through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1188BCUP 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 MAX1188BCUP reliable?
The price and inventory of MAX1188BCUP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1188BCUP is usually 5 days.
3.What payment methods are accepted for MAX1188BCUP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1188BCUP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1188BCUP?
MAX1188BCUP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1188BCUP 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 MAX1188BCUP?
For technical support, including MAX1188BCUP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1188BCUP requirements.
6.How does Aetrix verify that MAX1188BCUP is sourced from the original manufacturer or authorized distributors?
All MAX1188BCUP 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 MAX1188BCUP meets industry standards.
7.What is the process for return or replacement of MAX1188BCUP?
All MAX1188BCUP units undergo pre-shipment inspection (PSI). If there is an issue with MAX1188BCUP, 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 MAX1188BCUP part is unused and in its original packaging.
Return procedure for MAX1188BCUP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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