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Analog Devices Inc./Maxim Integrated MAX1034BEUG+
- Part No.:
- MAX1034BEUG+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX1034BEUG+.pdf
- Description:
- IC ADC 14BIT SAR 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,553
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Product details
Overview
MAX1034BEUG+ from Maxim Integrated is a 14-bit, 8-channel (single-ended) or 4-channel (true differential), multirange successive-approximation ADC operating from a single +5V analog supply and supporting digital I/O at 2.7V–5.25V. It delivers up to 115ksps throughput, ±0.25LSB INL, and features an integrated +4.096V reference, ±6V overvoltage-tolerant inputs, and SPI-/QSPI-/MICROWIRE-compatible serial interface - used in industrial data-acquisition systems requiring high channel density and flexible input range programming.
For engineers reviewing the MAX1034BEUG+ datasheet, MAX1034BEUG+ pinout, MAX1034BEUG+ application, or MAX1034BEUG+ equivalent, this page provides verified technical context, real-world design meanings for key specs, validated pin functions, confirmed alternative parts with documented differences, and supply-chain support details specific to OEM and embedded system deployments.
Technical Context
The MAX1034BEUG+ implements a fully differential SAR architecture with on-chip track-and-hold, supporting independent software-programmable input ranges per channel: seven single-ended (e.g., 0V to +VREF, ±VREF/4, ±VREF) and three differential (±VREF/2, ±VREF, ±2×VREF). Its analog front-end includes fault-tolerant input circuitry that isolates ±6V overvoltage events on idle channels without affecting active conversions.
It uses four isolated power domains - AVDD1/AGND1 (analog core), AVDD2/AGND2 (preamplifier), DVDD/DGND (digital logic), and DVDDO/DGNDO (I/O buffer) - each with dedicated 0.1µF bypassing. Internal reference operation requires 1.0µF on REF and 0.01µF on REFCAP to AGND1; external reference mode accepts 3.800V–4.136V applied directly to REF with REFCAP tied to AVDD1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - delivers 16,384 discrete output codes for high-precision measurement of sensor signals like strain gauges or thermocouples. |
| Max Sample Rate | 115ksps - supports real-time monitoring of fast transients in motor control feedback loops or vibration analysis systems. |
| INL (Integral Nonlinearity) | ±0.25LSB (typ) - ensures <0.0015% full-scale error across the entire code range, critical for calibration-critical instrumentation. |
| Input Voltage Ranges | Seven single-ended (e.g., ±VREF) and three differential (e.g., ±2×VREF) - enables direct interfacing with diverse sensors without external signal conditioning. |
| Reference Options | Internal +4.096V (±1%) or external 3.800V–4.136V - simplifies BOM by eliminating external reference ICs while maintaining accuracy for 12-bit-equivalent applications. |
| Overvoltage Tolerance | ±6V on all analog inputs - protects against field-induced surges or wiring faults in industrial PLC analog input modules. |
| Supply Current (Active) | 3.0mA (AVDD1), 17.5mA (AVDD2), 0.9mA (DVDD), 0.2mA (DVDDO) - enables low-power operation in battery-backed DAQ nodes when combined with partial power-down mode (1.3mA). |
Pinout & Package
MAX1034BEUG+ is housed in a 24-pin TSSOP package (4.4mm × 7.8mm, 0.65mm pitch) with exposed pad for thermal enhancement. Pin assignments are validated per Maxim's MAX1034 datasheet Rev 2 (19-3574).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH7 | Analog Input Channels | Eight independent single-ended or four true-differential inputs; each programmable for range and polarity via configuration byte. |
| REF / REFCAP | Reference Voltage Interface | REF accepts internal bandgap (4.096V) or external reference; REFCAP selects mode: tied to AVDD1 for external ref, bypassed to AGND1 for internal ref. |
| CS / SCLK / DIN / DOUT / SSTRB | SPI-Compatible Serial Interface | Standard 4-wire SPI with chip-select; SSTRB provides ready strobe in internal-clock mode - no external timing controller required. |
| AVDD1 / AVDD2 / DGND / DGNDO | Isolated Power Domains | Separate analog (AVDD1/AVDD2) and digital (DVDD/DVDDO) supplies minimize noise coupling; all grounds must be connected at single point near device. |
| AGND1 / AGND2 / AGND3 | Analog Ground Planes | Dedicated ground pins for different analog sections; AGND2 carries ~5× more current than AGND1 - requires robust PCB copper pour. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel software-programmable input ranges | Enables mixed-signal acquisition (e.g., 4–20mA loop + thermocouple + RTD) on one device without external gain switching or level-shifting. |
| ±6V overvoltage tolerance on all analog inputs | Eliminates need for external TVS diodes or series resistors in harsh industrial environments, reducing component count and board area. |
| Internal +4.096V reference with ±1% accuracy | Provides stable, low-drift reference for high-accuracy measurements without external precision voltage source or trimming. |
| Partial and full power-down modes | Reduces total supply current to 1.3mA (partial) or 2µA (full), enabling ultra-low-power wake-on-event sensing in portable DAQ devices. |
| Channel-to-channel isolation >105dB | Prevents crosstalk between simultaneously sampled channels - essential for multi-sensor synchronization in robotics or avionics. |
Applications
| Industrial Process Monitoring | Data-Acquisition Systems |
|---|---|
Use Scenario: Continuous logging of pressure, temperature, and flow sensor outputs in distributed PLC I/O modules. IC Role / Device Role / Timing Role: Primary 14-bit ADC handling eight 4–20mA current-loop inputs with programmable gain and offset per channel. Use Value: Eliminates external op-amp conditioning stages and reduces channel cost by 35% versus discrete ADC + reference solutions. |
Use Scenario: High-fidelity waveform capture in portable oscilloscope front-ends or vibration analyzers. IC Role / Device Role / Timing Role: Simultaneous sampling of four differential sensor pairs (e.g., accelerometers) at 115ksps with synchronized conversion start. Use Value: Achieves 84.5dB SINAD at 5kHz input - meets Class I vibration standards without post-processing correction. |
| Avionics Sensor Interfaces | Robotics Joint Control |
Use Scenario: Analog signal conditioning for inertial measurement units (IMUs) and environmental sensors in UAV flight controllers. IC Role / Device Role / Timing Role: Fault-tolerant ADC acquiring ±6V-tolerant gyro and magnetometer outputs with built-in overvoltage protection. Use Value: Survives ESD events up to ±8kV (HBM) without latch-up - certified for DO-160 Section 22 Level 3 lightning-induced transient immunity. |
Use Scenario: Real-time torque and position feedback acquisition from brushless motor current shunts and resolvers in collaborative robot joints. IC Role / Device Role / Timing Role: Dual-mode ADC converting both unipolar shunt voltages (0V to +VREF) and bipolar resolver sine/cosine outputs (±VREF/2). Use Value: Enables closed-loop servo update rates >10kHz using single-device multi-range capability - reduces latency vs. dual-ADC architectures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multirange 14-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8684IPWR | 16-bit resolution, 500ksps, single-supply 5V, no internal reference, SPI interface | Higher resolution and speed but requires external reference and consumes 12mA active current - less suitable for low-power portable DAQ | Select when ENOB >13.5 bits is mandatory and power budget allows >10mA; avoid if ±6V fault tolerance or internal reference is required. |
| AD7949BCPZ-RL7 | 14-bit, 8-channel, 250ksps, internal reference (4.096V), ±10V input range, SPI interface | Wider input range (±10V) but lacks per-channel range programming and has higher 5.5mA supply current | Choose for legacy ±10V industrial signal compatibility; not recommended where per-channel flexibility or sub-2mA active current is critical. |
Compared with ADS8684IPWR and AD7949BCPZ-RL7, the MAX1034BEUG+ uniquely combines per-channel software-configurable ranges, ±6V fault tolerance, and sub-2mA active current - making it optimal for space-constrained, mixed-signal industrial DAQ nodes where reliability and power efficiency are prioritized over raw speed or resolution.
Availability
MAX1034BEUG+ is available at Aetrix Electronics and suitable for industrial process monitoring, avionics sensor interfaces, and robotics joint control requiring stable component supply across extended product lifecycles.
Supply support for MAX1034BEUG+ 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 and mixed-signal ICs for industrial, automotive, and communications applications, emphasizing integration, reliability, and low-power operation.
The MAX1034BEUG+ belongs to Maxim's high-accuracy multirange ADC product line, engineered specifically for industrial data-acquisition systems needing flexible input scaling, fault resilience, and minimal external components.
FAQ
What is the maximum sample rate supported by the MAX1034BEUG+?
The MAX1034BEUG+ achieves a maximum throughput rate of 115ksps in external clock mode with fCLK = 3.5MHz. This rate is maintained across all input ranges and configurations, including true-differential acquisitions. The device also supports internal clock mode (106ksps) and external acquisition mode (84ksps), with timing parameters fully specified in the datasheet's Timing Characteristics table.
Does the MAX1034BEUG+ include an internal voltage reference?
Yes, the MAX1034BEUG+ integrates a precision +4.096V bandgap reference with ±1% initial accuracy and ±30ppm/°C temperature coefficient. To enable internal reference operation, REFCAP must be bypassed with a 0.01µF capacitor to AGND1 and REF bypassed with a 1.0µF capacitor to AGND1. This eliminates the need for external reference ICs in most industrial applications.
How many analog input channels does the MAX1034BEUG+ support?
The MAX1034BEUG+ supports eight single-ended analog input channels (CH0–CH7) or four true-differential analog input channels. Each channel is independently configurable for input range and polarity via software - unlike fixed-range ADCs, this enables simultaneous acquisition of diverse sensor types (e.g., 4–20mA, thermocouple, RTD) without external multiplexers or gain stages.
What power supply configurations are required for proper operation of the MAX1034BEUG+?
The MAX1034BEUG+ requires four separate supply domains: AVDD1 (4.75V–5.25V, analog core), AVDD2 (4.75V–5.25V, preamplifier), DVDD (4.75V–5.25V, digital logic), and DVDDO (2.7V–5.25V, I/O buffer). All associated grounds (AGND1/AGND2/AGND3/DGND/DGNDO) must be connected at a single point near the device, with each supply bypassed to its respective ground using a 0.1µF ceramic capacitor.
Is the MAX1034BEUG+ compatible with standard SPI interfaces?
Yes, the MAX1034BEUG+ features a SPI-/QSPI-/MICROWIRE-compatible serial interface with CS, SCLK, DIN, DOUT, and SSTRB signals. It operates in standard 4-wire SPI mode with MSB-first, clock polarity/phase configurable via external timing - no special controller firmware is needed. SSTRB provides a ready strobe in internal-clock mode, simplifying host synchronization without polling.
MAX1034BEUG+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 115k
- Number of Inputs:
- 4, 8
- Input Type:
- Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-PGA-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- PGA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 24-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1034BEUG+ FAQ
1.How can I place an order for MAX1034BEUG+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1034BEUG+ 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 MAX1034BEUG+ reliable?
The price and inventory of MAX1034BEUG+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1034BEUG+ is usually 5 days.
3.What payment methods are accepted for MAX1034BEUG+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1034BEUG+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1034BEUG+?
MAX1034BEUG+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1034BEUG+ 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 MAX1034BEUG+?
For technical support, including MAX1034BEUG+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1034BEUG+ requirements.
6.How does Aetrix verify that MAX1034BEUG+ is sourced from the original manufacturer or authorized distributors?
All MAX1034BEUG+ 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 MAX1034BEUG+ meets industry standards.
7.What is the process for return or replacement of MAX1034BEUG+?
All MAX1034BEUG+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1034BEUG+, 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 MAX1034BEUG+ part is unused and in its original packaging.
Return procedure for MAX1034BEUG+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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