My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX1165BEUI+
- Part No.:
- MAX1165BEUI+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX1165BEUI+.pdf
- Description:
- ADC, SUCCESSIVE APPROXIMATION, 1
- Quantity:
- Payment:
- Shipping:
Inventory:2,850
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX1165BEUI+ from Maxim Integrated is a 16-bit, low-power, successive-approximation analog-to-digital converter (ADC) with parallel interface, internal 4.096V reference, ±2.5 LSB INL, and 165ksps sample rate. It operates from single +4.75V to +5.25V analog and +2.7V to +5.25V digital supplies, consuming 2.7mA with internal reference, and targets high-accuracy, battery-powered data-acquisition systems requiring compact TSSOP packaging.
For engineers reviewing the MAX1165BEUI+ datasheet, MAX1165BEUI+ pinout, MAX1165BEUI+ application, or MAX1165BEUI+ equivalent, this page delivers verified technical context, real-world timing and accuracy specs, validated 28-pin TSSOP package mapping, confirmed power-down behavior at 10ksps, and two rigorously cross-checked alternative ADCs for industrial sensor and I/O board designs.
Technical Context
The MAX1165BEUI+ implements a SAR architecture with integrated track-and-hold, using an internal 4.096V reference (±25ppm/°C) or external reference (3.8V–5.25V). Its conversion sequence is controlled by CS and R/C signals, supporting three distinct modes: acquisition (R/C low on first CS fall), conversion start (second CS fall), and data output (third CS fall with R/C high).
It features automatic power-down via R/C bit selection-standby mode retains reference/buffer active (<1mA), while shutdown mode powers them down (0.5µA typical), requiring 10ms wake-up time with 4.7µF REF bypass. Timing is self-clocked: tCONV ≤ 4.7µs, tACQ = 1.1µs minimum, aperture jitter <100ps, and full-linear bandwidth of 33kHz at SINAD > 81dB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees monotonic transfer function with no missing codes across full temperature range. |
| INL (Integral Nonlinearity) | ±2.5 LSB - ensures absolute accuracy within 0.038% of full scale for precision sensor digitization. |
| Sample Rate | 165ksps - supports real-time capture of signals up to 33kHz full-linear bandwidth without aliasing. |
| Reference Voltage | 4.096V internal (±25ppm/°C) - enables ratiometric measurements and eliminates external reference component cost. |
| Supply Current | 2.7mA (internal ref, 165ksps) / 0.5µA (shutdown) - allows ultra-low-power operation in intermittent-sampling battery systems. |
| SINAD / SNR | 86–90dB / 87–90dB - delivers >14.6 effective number of bits (ENOB) for high-fidelity signal reconstruction. |
| Aperture Jitter | <100ps - limits sampling uncertainty to <0.025 LSB at 100kHz input, critical for dynamic performance. |
Pinout & Package
The MAX1165BEUI+ is housed in a 28-pin TSSOP package (4.4mm × 9.7mm, 0.65mm pitch), optimized for space-constrained PCB layouts. All pins are surface-mount compatible with standard reflow profiles.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| D0–D15 | Digital Output (16-bit parallel) | Three-state outputs deliver full 16-bit result directly to µP bus; D15 is MSB; high-impedance during acquisition/conversion. |
| CS | Convert Start Input | Edge-triggered control: first falling edge powers up and initiates acquisition; second starts conversion; third loads data onto bus. |
| R/C | Read/Convert Control | Configures power state: low on second CS edge → standby (ref/buffer active); high → shutdown (ref/buffer off, 10ms wake-up). |
| EOC | End-of-Conversion Flag | Active-low signal indicates valid data ready; falling edge synchronizes µP read cycle after tDO delay (≤80ns). |
| AIN | Analog Input | Single-ended input referenced to AGND; 40pF input capacitance requires low-Z source or buffered drive for 16-bit settling. |
| REF / REFADJ | Reference I/O | REF outputs 4.096V (bypass 4.7µF); REFADJ adjusts voltage or selects external ref (tie to AVDD); both require 0.1µF AGND bypass. |
| AVDD / DVDD | Analog/Digital Supplies | Separate rails enable noise isolation; AVDD = 4.75–5.25V, DVDD = 2.7–5.25V; each requires local 0.1µF + bulk bypass. |
| AGND / DGND | Analog/Digital Grounds | Must be connected at single point near device; star grounding prevents digital noise coupling into analog path. |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ Power Management | Reduces supply current to 0.5µA in shutdown mode, enabling multi-year battery life in periodic-sampling applications. |
| Factory-Trimmed Internal Reference | 4.096V ±0.5% initial accuracy with ±25ppm/°C drift eliminates calibration overhead and external reference components. |
| Self-Clocked SAR Architecture | Removes need for external clock generation or synchronization logic, simplifying µP interface and reducing BOM count. |
| Parallel 16-Bit Interface | Direct connection to 16-bit microprocessor data buses without glue logic or serialization, minimizing latency and firmware overhead. |
| Industrial Temperature Range | -40°C to +85°C operation with guaranteed ±2.5 LSB INL ensures reliability in harsh environments like factory automation and outdoor instrumentation. |
Applications
| Temperature Sensor/Monitor | Industrial Process Control |
|---|---|
Use Scenario: Digitizing thermistor or RTD bridge outputs in HVAC controllers and environmental monitoring units. IC Role / Device Role / Timing Role: High-accuracy ADC capturing slow-varying analog sensor voltages with minimal self-heating error and ratiometric stability. Use Value: ±2.5 LSB INL and 4.096V internal reference enable direct 0.1°C resolution without external calibration or reference trimming. | Use Scenario: Sampling pressure, flow, and level transducer signals in PLC analog input modules. IC Role / Device Role / Timing Role: Precision front-end converter interfacing with isolated analog inputs and µP-based control loops. Use Value: 165ksps throughput and 33kHz full-linear bandwidth support oversampling for noise reduction in noisy plant-floor environments. |
| I/O Boards | Data-Acquisition Systems |
Use Scenario: Embedded PC/104 or PCIe carrier boards requiring high-resolution analog input channels. IC Role / Device Role / Timing Role: Parallel-interface ADC providing deterministic, low-latency data transfer to host processor without DMA or FIFO complexity. Use Value: 28-pin TSSOP footprint and 16-bit wide bus reduce PCB area vs. serial alternatives while maintaining compatibility with legacy µP buses. | Use Scenario: Portable field instruments performing spectral analysis, vibration monitoring, or waveform capture. IC Role / Device Role / Timing Role: Core digitizer in battery-powered DAQ with AutoShutdown managing power between triggered acquisitions. Use Value: 2.7mA active current and 0.5µA shutdown current extend runtime in handheld devices while preserving 16-bit fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit parallel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8556IPM | 6-channel simultaneous-sampling, 16-bit, 630ksps, SPI+parallel interface, external reference only, 48-pin HTQFP | Targets multi-channel synchronized acquisition (e.g., motor phase currents); lacks internal reference and AutoShutdown | Select when multi-channel correlation matters more than single-channel power efficiency or reference integration. |
| AD7656ASTZ | 6-channel, 16-bit, 250ksps, parallel interface, internal 2.5V ref, ±3.5 LSB INL, 64-pin LQFP | Higher channel count but larger package and looser INL; requires external 4.096V scaling for ratiometric sensor use | Choose for higher throughput and channel density where board space and calibration tolerance permit. |
Compared with ADS8556IPM and AD7656ASTZ, the MAX1165BEUI+ offers superior single-channel power efficiency (0.5µA shutdown), integrated 4.096V reference for sensor ratiometry, and compact 28-pin TSSOP-making it optimal for space- and battery-constrained single-input DAQ nodes.
Availability
MAX1165BEUI+ is available at Aetrix Electronics and suitable for industrial process control, portable data-acquisition systems, and temperature monitoring applications requiring stable component supply, long-term lifecycle support, and guaranteed -40°C to +85°C performance.
Supply support for MAX1165BEUI+ 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 precision analog, mixed-signal, and power-management ICs for industrial, medical, and communications markets.
The MAX1165BEUI+ belongs to the MAX1165/MAX1166 family of low-power, 16-bit SAR ADCs designed specifically for battery-operated, high-accuracy data-acquisition systems where size, power, and reference integration are critical constraints.
FAQ
What is the guaranteed INL specification for MAX1165BEUI+ over its full operating temperature range?
The MAX1165BEUI+ guarantees ±2.5 LSB integral nonlinearity across its entire -40°C to +85°C operating range, as specified in the Electrical Characteristics table under "MAX1165BEUI" row and "INL" parameter. This value is tighter than the ±4 LSB spec for the C-grade variant and reflects factory trimming and screening for extended-temperature performance. The MAX1165BEUI+ maintains this accuracy without recalibration.
Does MAX1165BEUI+ require an external clock signal to operate?
No, the MAX1165BEUI+ does not require an external clock. It uses an internal factory-trimmed clock generator to drive its successive-approximation conversion process. Total conversion time from hold-mode initiation to EOC assertion is guaranteed ≤4.7µs. This eliminates timing-critical clock routing and simplifies µP interface design compared to externally clocked ADCs.
How does the R/C pin control power states in MAX1165BEUI+?
The R/C pin on the MAX1165BEUI+ controls power mode selection on the second falling edge of CS: low → standby mode (reference and buffer remain active, <1mA supply current); high → shutdown mode (reference and buffer powered off, 0.5µA typical). In shutdown, a 10ms wake-up time is required before accurate conversion, enforced by internal timing and bypass capacitor values (CREF = 4.7µF, CREFADJ = 0.1µF).
Can MAX1165BEUI+ operate with an external reference, and what are the voltage limits?
Yes, the MAX1165BEUI+ supports external references applied either to REF (output node) or REFADJ (buffer input). When using external reference, the input voltage range is +3.8V to +5.25V. REF must be driven with ≤10Ω source impedance and capable of supplying 100µA DC load; REFADJ presents ~5kΩ input impedance. Internal reference is disabled by connecting REFADJ to AVDD.
What is the purpose of the HBEN pin on MAX1165BEUI+, and is it used?
The HBEN (High-Byte Enable) pin is not present on the MAX1165BEUI+. It is exclusive to the byte-wide MAX1166 variant (20-pin TSSOP) for multiplexing MSB/LSB onto an 8-bit bus. The MAX1165BEUI+ uses a full 16-bit parallel interface (D0–D15), so HBEN is unimplemented and should remain unconnected or left floating per datasheet guidance.
MAX1165BEUI+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 165k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- -
- 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:
- Temperature Sensor
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1165BEUI+ FAQ
1.How can I place an order for MAX1165BEUI+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1165BEUI+ 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 MAX1165BEUI+ reliable?
The price and inventory of MAX1165BEUI+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1165BEUI+ is usually 5 days.
3.What payment methods are accepted for MAX1165BEUI+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1165BEUI+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1165BEUI+?
MAX1165BEUI+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1165BEUI+ 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 MAX1165BEUI+?
For technical support, including MAX1165BEUI+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1165BEUI+ requirements.
6.How does Aetrix verify that MAX1165BEUI+ is sourced from the original manufacturer or authorized distributors?
All MAX1165BEUI+ 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 MAX1165BEUI+ meets industry standards.
7.What is the process for return or replacement of MAX1165BEUI+?
All MAX1165BEUI+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1165BEUI+, 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 MAX1165BEUI+ part is unused and in its original packaging.
Return procedure for MAX1165BEUI+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX1165BEUI+ Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
