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Analog Devices Inc./Maxim Integrated MAX1186ECM
- Part No.:
- MAX1186ECM
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-TQFP Exposed Pad
- Datasheet:
-
MAX1186ECM.pdf
- Description:
- DUAL 10-BIT, 40MSPS, ADC
- Quantity:
- Payment:
- Shipping:
Inventory:245
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Product details
Overview
MAX1186ECM from Maxim Integrated is a dual 10-bit, 40Msps analog-to-digital converter optimized for low-power, high-dynamic-performance imaging and instrumentation systems. It features fully differential track-and-hold inputs, internal 2.048V bandgap reference, and multiplexed parallel CMOS outputs. Operating from a single 2.7V–3.6V analog supply, it delivers 59.4dB SNR at 20MHz input frequency while consuming only 105mW.
For engineers reviewing the MAX1186ECM datasheet, MAX1186ECM pinout, MAX1186ECM application, or MAX1186ECM equivalent, this page provides verified technical context, validated pin functions, confirmed dual-channel timing behavior (CHA on clock rise, CHB on fall), and real-world selection guidance for I/Q digitization, IF sampling, and ultrasound front-ends.
Technical Context
The MAX1186ECM implements a nine-stage pipelined ADC architecture with 1.5-bit flash quantizers per stage and digital error correction to guarantee no missing codes. Each channel samples simultaneously on the rising edge of CLK, with data latency of 5 cycles for CHA and 5.5 cycles for CHB.
Its fully differential T/H amplifiers provide 400MHz (-3dB) full-power bandwidth and support both differential (±1VP-P) and single-ended input configurations. Reference operation is configurable across three modes: internal (REFOUT→REFIN), buffered external (REFIN-driven), or unbuffered external (REFIN = GND).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution & Speed | Dual 10-bit, 40Msps sampling - enables simultaneous digitization of two high-frequency analog signals with 25ns clock period. |
| Dynamic Performance | 59.4dB SNR @ 20MHz fIN - supports clean digitization of RF/IF signals up to Nyquist (20MHz) in undersampling applications. |
| Power Consumption | 105mW normal / 2.8mA sleep / 1µA shutdown - allows power-gating during idle periods without reference re-stabilization delay. |
| Input Bandwidth | 400MHz (-3dB) full-power bandwidth - preserves signal integrity for wideband analog inputs including video and ultrasound waveforms. |
| Channel Matching | ±0.02dB gain match & ±0.25° phase match @ 20MHz - ensures accurate I/Q imbalance correction in coherent receiver systems. |
| Reference System | Internal 2.048V ±3% bandgap with 60ppm/°C TC - provides stable full-scale range without external components; supports external reference via REFIN. |
| Digital Interface | Multiplexed 10-bit parallel CMOS outputs (D0A/B–D9A/B), user-selectable two's complement or offset binary - simplifies FPGA/ASIC interface with single bus and format control pin (T/B). |
Pinout & Package
The MAX1186ECM is housed in a 48-pin TQFP-EP (7mm × 7mm) package with exposed paddle connected to analog ground for thermal dissipation. Pin functions are validated per Maxim's official datasheet (Rev 1, April 2006).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA+, INA-, INB+, INB- | Differential analog inputs for Channel A and B | Accept ±1VP-P differential signals; support single-ended mode when paired with COM; require matched impedance for optimal common-mode rejection. |
| COM | Common-mode voltage node | Internally biased at VDD/2; must be bypassed to GND with ≥0.1µF capacitor; serves as reference for differential input range. |
| CLK | Sampling clock input | CMOS-compatible; sampling occurs on rising edge; requires low-jitter (<2ps RMS) source to preserve 59.4dB SNR performance. |
| A/B | Channel indicator output | High = CHA data valid on D0A/B–D9A/B; low = CHB data valid; delays ~6ns from CLK edge for synchronous latch alignment. |
| T/B | Output format select | High = two's complement; low = straight offset binary - enables direct sign-magnitude interpretation or DSP-friendly signed integer handling. |
| PD, SLEEP, OE | Power and output control | PD = global shutdown (1µA); SLEEP = partial disable (2.8mA, reference active); OE = digital output tristate (prevents bus contention). |
| REFOUT, REFIN, REFP, REFN | Reference subsystem terminals | Support internal (REFOUT→REFIN), buffered external (REFIN-driven), or unbuffered external (REFIN=GND) configurations - enables flexible full-scale scaling and accuracy optimization. |
| VDD, GND, OVDD, OGND, EP | Supply and grounding | VDD (2.7–3.6V) powers analog core; OVDD (1.7–3.6V) powers digital outputs independently; EP must be soldered to AGND for thermal and noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply 3V operation | Eliminates need for dual ± supplies or LDOs - reduces BOM count and PCB area in portable and space-constrained instrumentation. |
| 400MHz input bandwidth with 59.4dB SNR | Enables direct IF sampling of 20MHz+ signals without analog pre-filtering - critical for software-defined radio and broadband test equipment. |
| 0.02dB/0.25° channel matching | Minimizes I/Q image rejection degradation - allows >60dB image suppression in quadrature receivers without calibration hardware. |
| Three reference operating modes | Permits trade-off between simplicity (internal), accuracy (buffered external), or flexibility (unbuffered external) - adapts to system-level precision and noise requirements. |
| 5-cycle CHA / 5.5-cycle CHB latency | Provides deterministic, aligned timing for time-interleaved processing - essential for real-time beamforming in ultrasound and phased-array radar. |
| Exposed paddle TQFP-EP package | Reduces junction-to-board thermal resistance by >30% vs. standard TQFP - maintains <110°C junction temp at full 105mW dissipation in industrial ambient. |
Applications
| High-Resolution Imaging | I/Q Channel Digitization |
|---|---|
Use Scenario: Digital X-ray and fluoroscopy detector readout requiring simultaneous capture of two spatially adjacent sensor columns. IC Role / Device Role / Timing Role: Dual-channel ADC digitizing correlated analog pixel outputs at 40Msps with matched gain/phase to preserve spatial fidelity. Use Value: 0.02dB gain match prevents column-to-column intensity artifacts; 400MHz bandwidth preserves edge sharpness in high-MTF imaging. |
Use Scenario: Direct-conversion receiver in LTE base station transceiver, digitizing I and Q baseband paths after quadrature demodulation. IC Role / Device Role / Timing Role: Simultaneous sampling of in-phase and quadrature analog signals with sub-degree phase coherence for accurate complex envelope reconstruction. Use Value: ±0.25° phase matching enables >65dB image rejection without DSP calibration; multiplexed outputs reduce FPGA pin count by 50% vs. dual independent ADCs. |
| Multichannel IF Sampling | Ultrasound Beamforming |
Use Scenario: Wideband spectrum analyzer front-end capturing 0–20MHz IF band across multiple parallel channels for real-time spectral monitoring. IC Role / Device Role / Timing Role: High-SNR digitizer operating in undersampling mode with precise aperture jitter control to maintain SFDR >72dBc. Use Value: 2ps RMS aperture jitter sustains 59.4dB SNR at 20MHz; internal reference eliminates drift-induced baseline wander over temperature. |
Use Scenario: Portable ultrasound probe with 64+ element array, requiring low-power, low-latency digitization of echo return signals per channel pair. IC Role / Device Role / Timing Role: Dual ADC servicing two transducer elements with deterministic 5/5.5-cycle latency for time-of-flight alignment in digital beamforming. Use Value: Sleep mode (2.8mA) cuts power between pulses; exposed paddle package enables compact probe housing with reliable thermal management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 10-bit, 40Msps ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1185ECM | Pin-compatible 20Msps version; identical package, pinout, and feature set except halved sampling rate and reduced power (52mW). | Suitable for lower-bandwidth applications like audio analyzers or slower IF digitization where 40Msps is unnecessary. | Select MAX1185ECM when system clock constraints or power budget prohibit 40Msps operation but full functional compatibility is required. |
| AD9215BRUZ-40 | Single-channel 10-bit 40Msps ADC; different pinout (32-TSSOP); no internal reference; requires external REF driver; higher typical SNR (61.5dB). | Used where channel isolation >90dB is mandatory or when board layout favors separate ADC placement per channel. | Choose AD9215BRUZ-40 only if dual-channel correlation is not needed and superior SNR justifies added reference circuitry and layout complexity. |
Compared with MAX1185ECM, the MAX1186ECM delivers double the sampling throughput with identical power efficiency per Msps and full pin compatibility; versus AD9215BRUZ-40, it provides integrated dual-channel synchronization and internal reference at the cost of slightly lower SNR, making it optimal for I/Q and time-aligned sampling systems.
Availability
MAX1186ECM is available at Aetrix Electronics and suitable for high-resolution imaging, multichannel IF sampling, and ultrasound beamforming applications requiring stable component supply, long-term industrial temperature support (-40°C to +85°C), and guaranteed traceable sourcing.
Supply support for MAX1186ECM 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 MAX1186ECM belongs to Maxim's high-speed data converter product line, engineered specifically for low-power, high-dynamic-range digitization in portable and thermally constrained instrumentation and imaging systems.
FAQ
What is the maximum clock frequency supported by the MAX1186ECM?
The MAX1186ECM supports a maximum clock frequency of 40MHz, enabling 40Msps sampling per channel. This is specified under absolute maximum ratings and confirmed in electrical characteristics tables. Exceeding 40MHz violates timing margins and degrades SNR/SFDR performance. The MAX1186ECM must be operated within this limit to maintain its guaranteed 59.4dB SNR at 20MHz input frequency.
Does the MAX1186ECM require an external reference voltage?
No, the MAX1186ECM includes an internal 2.048V ±3% precision bandgap reference and operates fully functional without external reference components. REFOUT can be connected to REFIN via a 10kΩ resistor for internal mode. External reference is optional and used only when higher accuracy, custom full-scale range, or improved temperature stability is required.
How does the A/B output pin function on the MAX1186ECM?
The A/B pin on the MAX1186ECM is a channel indicator that toggles synchronously with the CLK signal: it goes high (~6ns after CLK rise) when CHA data is valid on D0A/B–D9A/B, and low (~6ns after CLK fall) when CHB data is valid. This allows the host processor or FPGA to correctly interpret which channel's 10-bit sample is present on the shared multiplexed bus at any given time.
What is the purpose of the SLEEP and PD pins on the MAX1186ECM?
The SLEEP pin places the MAX1186ECM into a low-power state (2.8mA) where ADC cores are disabled but the internal reference remains active for fast wake-up. The PD (power-down) pin asserts deep shutdown (1µA), disabling all circuitry including the reference - requiring ~1.5µs wake-up time. Both pins enable dynamic power management aligned with signal acquisition duty cycles in battery-powered or thermally sensitive systems.
Can the MAX1186ECM accept single-ended analog inputs?
Yes, the MAX1186ECM supports single-ended operation: connect the signal source to INA+ or INB+, tie INA− or INB− to COM, and ensure COM is properly bypassed. However, differential mode is preferred for best SNR (59.4dB), SFDR (72dBc), and common-mode noise rejection. Single-ended use reduces effective input range and may degrade dynamic performance by 2–3dB depending on layout and source impedance balance.
MAX1186ECM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 48-TQFP Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 40M
- Number of Inputs:
- 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-TQFP-EP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1186ECM FAQ
1.How can I place an order for MAX1186ECM through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1186ECM 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 MAX1186ECM reliable?
The price and inventory of MAX1186ECM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1186ECM is usually 5 days.
3.What payment methods are accepted for MAX1186ECM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1186ECM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1186ECM?
MAX1186ECM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1186ECM 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 MAX1186ECM?
For technical support, including MAX1186ECM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1186ECM requirements.
6.How does Aetrix verify that MAX1186ECM is sourced from the original manufacturer or authorized distributors?
All MAX1186ECM 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 MAX1186ECM meets industry standards.
7.What is the process for return or replacement of MAX1186ECM?
All MAX1186ECM units undergo pre-shipment inspection (PSI). If there is an issue with MAX1186ECM, 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 MAX1186ECM part is unused and in its original packaging.
Return procedure for MAX1186ECM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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