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Analog Devices Inc./Maxim Integrated MAX1195ECM
- Part No.:
- MAX1195ECM
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-TQFP Exposed Pad
- Datasheet:
-
MAX1195ECM.pdf
- Description:
- DUAL, 8-BIT, ADC PARALLEL OUTPUT
- Quantity:
- Payment:
- Shipping:
Inventory:408
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Product details
Overview
MAX1195ECM from Maxim Integrated is a dual, 8-bit, 40Msps analog-to-digital converter optimized for low-power, high-dynamic-performance applications including baseband I/Q sampling, ultrasound imaging, and battery-powered instrumentation. It operates from a single 2.7V–3.6V supply, delivers 48.5dB SINAD at 20MHz input, features fully differential 400MHz (-3dB) input bandwidth, and integrates a 2.048V precision bandgap reference.
For engineers reviewing the MAX1195ECM datasheet, MAX1195ECM pinout, MAX1195ECM application, or MAX1195ECM equivalent, key selection criteria include channel matching (±0.05° phase, 0.05dB gain), power modes (87mW active / 0.3µW shutdown), parallel CMOS outputs with selectable two's complement/offset binary format, and TQFP-EP package compatibility with pin-upgrade paths to MAX1197/MAX1198 (higher speed) and MAX1183 (10-bit).
Technical Context
The MAX1195ECM employs a seven-stage, fully differential pipelined architecture with 5-clock-cycle latency, enabling high-speed conversion while minimizing power. Its track-and-hold amplifiers support both differential and single-ended inputs with ±1VP-P full-scale range and mid-supply common-mode biasing.
It implements three reference configurations: internal (REFOUT→REFIN), buffered external (precision voltage applied to REFIN), and unbuffered external (REFIN = GND). The device uses separate analog (VDD) and output (OVDD) supplies (1.7V–3.6V) for flexible logic interfacing and includes dedicated control pins for sleep (SLEEP), power-down (PD), output enable (OE), and output format selection (T/B).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - defines quantization step size and dynamic range for digitizing analog signals in real-time systems. |
| Sampling Rate | 40Msps - supports Nyquist-limited input frequencies up to 20MHz, suitable for IF sampling and broadband communications. |
| SINAD @ 20MHz | 48.5dB typical - determines effective number of bits (~8.1 ENOB) and signal fidelity in noise-sensitive applications like medical imaging. |
| Input Bandwidth | 400MHz (-3dB) - enables accurate capture of fast-rising edges and wideband signals without attenuation prior to sampling. |
| Power Dissipation | 87mW normal operation - enables thermal management in compact, battery-constrained designs such as portable test equipment. |
| Channel Matching | ±0.05° phase / 0.05dB gain - ensures coherent I/Q signal processing and minimizes image rejection errors in quadrature receivers. |
| Reference Voltage | 2.048V internal bandgap - provides stable, temperature-compensated full-scale range without external components. |
Pinout & Package
The MAX1195ECM is housed in a 48-pin TQFP-EP (7mm × 7mm) package with exposed paddle for thermal enhancement. Pin functions are validated per Maxim's official datasheet Rev 0 (19-2410).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA+, INA- | Differential analog input Channel A | Accepts ±1VP-P differential signal; requires matched impedance and VDD/2 common-mode bias for optimal SFDR. |
| INB+, INB- | Differential analog input Channel B | Independent second channel with identical performance; enables simultaneous I/Q or dual-channel acquisition. |
| CLK | CMOS-compatible sampling clock input | Rising-edge triggered; requires low-jitter source (<2ps RMS) to preserve SNR at high input frequencies. |
| T/B | Digital output format select | High = two's complement; Low = offset binary - simplifies FPGA/DSP interface logic without external translation. |
| OE | Three-state output enable (active-low) | Allows bus sharing with other devices; disables D7A–D0A and D7B–D0B outputs when high. |
| REFP / REFN / COM | Differential reference interface | Set full-scale range as ±(REFP – REFN); internally generated at 2.048V or externally configurable via REFIN. |
| D7A–D0A / D7B–D0B | Parallel CMOS digital outputs | Two independent 8-bit buses; OVDD-supplied (1.7V–3.6V) for direct interfacing with diverse logic families. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent ADC channels | Enables synchronous I/Q sampling or multichannel data acquisition without interleaving artifacts or timing skew. |
| Flexible reference architecture | Supports internal (2.048V), buffered external, or unbuffered external reference modes - accommodates accuracy, range, and noise requirements across applications. |
| Low-power operating modes | 87mW active, 9mW sleep, 0.3µW shutdown - extends battery life in portable instrumentation and reduces thermal load in dense PCB layouts. |
| High-fidelity channel matching | −72dB interchannel crosstalk and ±0.05° phase match ensure minimal image distortion in quadrature demodulation systems. |
| Wideband track-and-hold | 400MHz −3dB input bandwidth preserves signal integrity for RF/IF sampling up to Nyquist frequency (20MHz). |
Applications
| Baseband I/Q Sampling | Multichannel IF Sampling |
|---|---|
|
Use Scenario: Simultaneous digitization of in-phase (I) and quadrature (Q) signals in direct-conversion receivers for WLAN or WWAN modems. IC Role / Device Role / Timing Role: Dual-channel ADC performing synchronous sampling at 40Msps with matched gain/phase to preserve complex signal integrity. Use Value: Enables >48dB SINAD and <−72dB crosstalk for accurate constellation mapping and low EVM in 802.11ac/4G LTE baseband processing. |
Use Scenario: Digitizing multiple intermediate-frequency (IF) signals from parallel radio front-ends in VSAT terminals or spectrum analyzers. IC Role / Device Role / Timing Role: Two independent 8-bit ADCs capturing distinct IF bands with shared clock and reference for coherent multi-channel analysis. Use Value: Eliminates need for two discrete ADCs while maintaining channel isolation and timing alignment critical for beamforming and interference cancellation. |
| Ultrasound and Medical Imaging | Battery-Powered Instrumentation |
|
Use Scenario: Receiving echo signals from transducer arrays in portable ultrasound machines requiring high SNR and low power. IC Role / Device Role / Timing Role: High-dynamic-range ADC converting analog RF echoes into digital samples for beamforming and image reconstruction. Use Value: Delivers 48.5dB SINAD at 20MHz input and 400MHz input bandwidth to resolve fine tissue structures while consuming only 87mW per channel. |
Use Scenario: Signal acquisition in handheld oscilloscopes, spectrum analyzers, or field-deployable sensor nodes with strict thermal and energy budgets. IC Role / Device Role / Timing Role: Low-power dual ADC providing real-time waveform capture with sleep/shutdown modes for duty-cycled operation. Use Value: Reduces system power by >99% during idle periods via 0.3µW shutdown mode, extending battery runtime without sacrificing 40Msps performance on demand. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, medium-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1197ECM | 60Msps sampling rate; same 8-bit resolution, pin-compatible TQFP-EP package, identical reference and interface architecture. | Required where higher Nyquist bandwidth (>30MHz) is needed for wider IF bands or faster transient capture. | Select MAX1197ECM when system clock and FPGA resources support 60MHz data throughput and higher power (125mW) is acceptable. |
| MAX1183ECM | 10-bit resolution, pin-compatible upgrade; N.C. pins internally pulled down, enabling drop-in replacement with improved ENOB (~9.2 bits at 20MHz). | Suitable for applications demanding higher dynamic range, such as precision instrumentation or high-fidelity audio digitization. | Choose MAX1183ECM when 2-bit resolution increase justifies ~30% higher power (115mW) and design validation for enhanced linearity (±0.5 LSB INL). |
Compared with MAX1197ECM, the MAX1195ECM trades 20Msps speed for lower power and cost; compared with MAX1183ECM, it sacrifices 2-bit resolution for reduced complexity and better power efficiency in 8-bit-constrained systems.
Availability
MAX1195ECM is available at Aetrix Electronics and suitable for baseband I/Q sampling, ultrasound imaging, and battery-powered instrumentation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX1195ECM 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 MAX1195ECM belongs to Maxim's high-speed, low-power ADC family targeting real-time signal acquisition in space- and power-constrained systems where dual-channel synchronization and reference flexibility are critical.
FAQ
What is the maximum analog input frequency supported by the MAX1195ECM?
The MAX1195ECM has a 400MHz −3dB small-signal input bandwidth and is specified for 40Msps sampling, supporting analog input frequencies up to 20MHz (Nyquist limit) with 48.5dB SINAD. Its full-power bandwidth is also 400MHz, allowing accurate digitization of fast transients and wideband signals without roll-off before sampling.
Does the MAX1195ECM require an external reference voltage?
No - the MAX1195ECM includes an internal 2.048V precision bandgap reference. It can operate in internal reference mode by connecting REFOUT to REFIN (e.g., via 10kΩ resistor), eliminating external components. External references are optional for applications needing different full-scale ranges or higher accuracy.
How does the MAX1195ECM manage power in portable applications?
The MAX1195ECM offers three power states: 87mW normal operation, 9mW sleep mode (reference bias active), and 0.3µW shutdown mode. This enables aggressive power gating in battery-powered instrumentation - for example, entering shutdown between measurement bursts to extend operational life significantly.
Can the MAX1195ECM interface directly with 1.8V logic systems?
Yes - the MAX1195ECM features a separate OVDD supply (1.7V–3.6V) for its parallel CMOS outputs. When OVDD = 1.8V, D7A–D0A and D7B–D0B meet 1.8V logic thresholds (VOH ≥ 1.6V, VOL ≤ 0.2V), enabling direct connection to FPGAs or microcontrollers without level shifters.
What is the latency of the MAX1195ECM, and how is it measured?
The MAX1195ECM has a fixed 5-clock-cycle latency from CLK rising edge to valid digital output. At 40MHz, this equals 125ns. Latency is deterministic and consistent across both channels, critical for time-aligned I/Q processing and closed-loop control systems using the MAX1195ECM.
MAX1195ECM 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:
- 8
- 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:
- 1.7V ~ 3.6V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-TQFP-EP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1195ECM FAQ
1.How can I place an order for MAX1195ECM through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1195ECM 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 MAX1195ECM reliable?
The price and inventory of MAX1195ECM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1195ECM is usually 5 days.
3.What payment methods are accepted for MAX1195ECM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1195ECM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1195ECM?
MAX1195ECM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1195ECM 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 MAX1195ECM?
For technical support, including MAX1195ECM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1195ECM requirements.
6.How does Aetrix verify that MAX1195ECM is sourced from the original manufacturer or authorized distributors?
All MAX1195ECM 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 MAX1195ECM meets industry standards.
7.What is the process for return or replacement of MAX1195ECM?
All MAX1195ECM units undergo pre-shipment inspection (PSI). If there is an issue with MAX1195ECM, 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 MAX1195ECM part is unused and in its original packaging.
Return procedure for MAX1195ECM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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