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Analog Devices Inc./Maxim Integrated MAX1122BEGK+TD
- Part No.:
- MAX1122BEGK+TD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
MAX1122BEGK+TD.pdf
- Description:
- IC ADC 10BIT PIPELINED 68QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,515
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Product details
Overview
MAX1122BEGK+TD from Maxim Integrated is a 10-bit, 170Msps analog-to-digital converter optimized for wideband IF sampling up to 500MHz, featuring 57.5dB SNR at 10MHz and 72dBc SFDR at 100MHz, operating on a single 1.8V supply with LVDS digital outputs - ideal for digital predistortion receivers in cellular base-station transceivers.
For engineers reviewing the MAX1122BEGK+TD datasheet, MAX1122BEGK+TD pinout, MAX1122BEGK+TD application, or MAX1122BEGK+TD equivalent, key selection criteria include its 170Msps sampling rate, differential LVDS clock interface, on-chip divide-by-2 clock divider, 1.25VP-P full-scale input range, and industrial temperature range (–40°C to +85°C).
Technical Context
The MAX1122BEGK+TD employs a fully differential pipelined architecture with integrated track-and-hold and internal 1.23V bandgap reference, enabling high-speed conversion while maintaining linearity (±0.4 LSB INL) and low power (460mW at 170Msps). Its clock management circuit enforces 40–60% duty cycle tolerance and supports up to 340MHz differential LVDS clock inputs via on-chip divide-by-2 functionality.
Digital outputs are true LVDS-compatible (250–450mV differential swing), configurable as two's complement or offset binary via the T/B pin, with 9-cycle pipeline latency and dedicated out-of-range flags (ORP/ORN). Analog inputs accept AC- or DC-coupled differential signals centered at 1.4V common-mode voltage with 4.4kΩ typical input resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit quantization delivering 1024 distinct output codes for precise wideband signal digitization. |
| Sampling Rate | 170Msps maximum rate - enables Nyquist-limited capture of signals up to 85MHz or undersampling of IF bands up to 500MHz. |
| SNR | 57.5dB at fIN = 10MHz - ensures >9 effective bits of dynamic resolution for high-fidelity baseband processing. |
| SFDR | 72dBc at fIN = 100MHz - suppresses spurious tones critical for multi-carrier wireless receiver linearity. |
| Power Dissipation | 460mW at 170Msps - balances performance and thermal load in dense RF front-end layouts. |
| Analog Supply | Single 1.8V AVCC - simplifies power delivery and reduces noise coupling versus dual-supply ADCs. |
| Digital Interface | LVDS parallel outputs (D0P/N–D9P/N, DCLKP/N, ORP/N) - provides noise-immune, high-speed data transfer to FPGAs or ASICs. |
Pinout & Package
MAX1122BEGK+TD is housed in a 68-pin QFN package with exposed pad (EP), thermally and electrically connected to AGND. The package measures 10mm × 10mm × 0.8mm and supports reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INP / INN | Differential analog input pair | Accepts ±0.3125V swing around 1.4V common-mode; self-biased via internal 2.2kΩ resistors for simplified AC-coupled drive. |
| CLKP / CLKN | Differential LVDS clock input | Supports up to 340MHz clock frequency; internal duty-cycle equalizer ensures robust timing despite source jitter. |
| D0P/N–D9P/N | LVDS parallel data outputs (10-bit) | True/complementary pairs deliver synchronized 10-bit words with 2.1ns skew between DCLKP and data valid window. |
| ORP / ORN | Out-of-range flag outputs | Assert high/low when input exceeds ±0.3125V from common-mode - enables real-time signal clipping detection. |
| CLKDIV | LVCMOS clock divider control | Pulldown-enabled; logic low selects divide-by-2 mode, reducing effective output update rate and easing FPGA timing closure. |
| T/B | Output format select | Configures data coding as two's complement (T/B = 0) or offset binary (T/B = 1); internal pulldown allows default two's complement operation. |
| REFIO / REFADJ | Reference I/O and adjustment | REFIO delivers 1.23V internal reference; REFADJ accepts external resistor to scale full-scale range by ±10% for gain calibration. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip track-and-hold + internal reference | Eliminates need for external sample-hold amplifier or precision reference IC, reducing BOM count and layout area. |
| Selectable divide-by-2 clock divider | Enables use of lower-frequency, lower-phase-noise clock sources while maintaining 170Msps sampling - improves system SNR. |
| Differential LVDS digital outputs | Provides 100Ω matched termination compatibility and <100ps skew across all 10-bit lanes for reliable high-speed interfacing. |
| Out-of-range detection (ORP/ORN) | Hardware-level saturation monitoring allows immediate DSP-level correction without software polling or added latency. |
| AC- or DC-coupled analog input support | Flexible front-end design: AC-coupling maximizes dynamic range; DC-coupling preserves baseband integrity for zero-IF architectures. |
Applications
| Cellular Base-Station Digital Predistortion Receiver | Cable Head-End Spectrum Monitoring |
|---|---|
Use Scenario: Capturing wideband feedback signals from PA output to enable real-time adaptive linearization in LTE/5G macrocells. IC Role / Device Role / Timing Role: High-speed IF sampling ADC feeding FPGA-based DPD engine; requires tight aperture jitter (<0.2ps RMS) and flat SNR up to 500MHz. Use Value: 72dBc SFDR at 100MHz and 57.1dB SNR at 500MHz ensure accurate modeling of PA nonlinearities across multi-carrier bands. | Use Scenario: Real-time spectral analysis of DOCSIS 4.0 upstream channels (5–204MHz) in cable node head-ends. IC Role / Device Role / Timing Role: Digitizing broadband analog IF output from tuner/demodulator chain; operates at 170Msps with DC-coupled input for baseband fidelity. Use Value: 1.25VP-P full-scale range and ±0.4 LSB INL enable accurate amplitude measurement across 100+ MHz instantaneous bandwidth. |
| Radar Antenna Array Beamformer Input | Communications Test Equipment Digitizer Module |
Use Scenario: Sampling IF outputs from phased-array radar receive channels for digital beamforming and pulse compression. IC Role / Device Role / Timing Role: High-SFDR ADC capturing pulsed RF returns; leverages LVDS outputs for deterministic timing to FPGA-based correlators. Use Value: 63.5dBc SFDR at 500MHz and 9-cycle pipeline latency allow clean capture of fast-rising LPI waveforms without harmonic contamination. | Use Scenario: Modular digitizer card in PXI-based vector signal analyzers requiring calibrated wideband acquisition up to 200MHz. IC Role / Device Role / Timing Role: Precision ADC core with traceable metrology-grade specs; uses internal reference and programmable full-scale scaling via REFADJ. Use Value: 1.23V ±90ppm/°C reference drift and ±10% FS adjustability support NIST-traceable amplitude accuracy over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1123EGK+ | 210Msps sampling rate, same 10-bit resolution and 68-pin QFN package; higher power (520mW) and SFDR (74dBc at 100MHz). | Required where >170Msps real-time bandwidth is needed, e.g., wider instantaneous spectrum capture in test equipment. | Select MAX1123EGK+ only if system clocking infrastructure supports ≥420MHz LVDS clock and thermal budget permits +60mW dissipation. |
| ADS5500IPAP | 14-bit, 125Msps; different architecture (folded-cascade), 1.8V/3.3V dual supply, parallel CMOS outputs, no on-chip reference. | Better SNR (71.5dB) but lower speed; suited for high-resolution, moderate-bandwidth applications like medical imaging digitizers. | Choose ADS5500IPAP when resolution >10 bits is mandatory and sampling rate ≤125Msps suffices - not a drop-in replacement. |
Compared with MAX1123EGK+, MAX1122BEGK+TD trades 40Msps speed for lower power and proven stability in production base-station designs; versus ADS5500IPAP, it offers higher speed and integrated LVDS interface at the cost of 4-bit resolution reduction - making it optimal for wideband communications where speed and interface simplicity outweigh ultimate SNR.
Availability
MAX1122BEGK+TD is available at Aetrix Electronics and suitable for cellular infrastructure, cable head-end systems, and radar subsystems requiring stable component supply with guaranteed long-term availability and controlled obsolescence risk.
Supply support for MAX1122BEGK+TD 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 RF solutions for demanding communication, industrial, and automotive applications.
The MAX1122 product line delivers high-speed, low-power ADCs targeting wideband IF sampling in wireless infrastructure - designed specifically to meet the dynamic range, linearity, and thermal constraints of digital predistortion and spectrum monitoring systems.
FAQ
What is the maximum analog input frequency supported by the MAX1122BEGK+TD?
The MAX1122BEGK+TD maintains flat SNR performance (within 1dB) up to 500MHz input frequency, with full-power analog bandwidth specified at 600MHz. At 500MHz, it achieves 56.5dB SNR and 63.5dBc SFDR - enabling direct undersampling of UHF and L-band RF signals without external downconversion.
Does the MAX1122BEGK+TD require an external reference voltage?
No, the MAX1122BEGK+TD includes an internal 1.23V bandgap reference. REFIO provides this voltage, and REFADJ allows full-scale range adjustment via external resistor. An external reference may be used by pulling REFADJ high and connecting to REFIO, but it is not required for standard operation of the MAX1122BEGK+TD.
How does the CLKDIV pin affect timing in the MAX1122BEGK+TD?
When CLKDIV = 0 (pulled low), the MAX1122BEGK+TD divides the input clock by 2, updating digital outputs at 85MHz for a 170MHz input clock - reducing FPGA timing closure burden. When CLKDIV = 1, outputs update at full 170MHz rate. The internal pulldown resistor allows leaving CLKDIV unconnected for default divide-by-2 operation.
What is the purpose of the ORP and ORN pins on the MAX1122BEGK+TD?
The ORP (true) and ORN (complementary) pins on the MAX1122BEGK+TD provide hardware-level out-of-range detection: they assert when the analog input exceeds ±0.3125V from the 1.4V common-mode voltage. This enables immediate saturation flagging without software intervention - critical for protecting downstream DSP algorithms in real-time DPD systems using the MAX1122BEGK+TD.
Can the MAX1122BEGK+TD operate with a single-ended clock input?
Although the MAX1122BEGK+TD is optimized for differential LVDS clock inputs (CLKP/CLKN), its clock inputs accept single-ended signals as a fallback. However, single-ended drive degrades jitter performance and dynamic specifications - Maxim specifies full AC performance only with differential LVDS clocking. For production designs using the MAX1122BEGK+TD, differential clocking is strongly recommended.
MAX1122BEGK+TD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 68-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 170M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 68-QFN (10x10)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1122BEGK+TD FAQ
1.How can I place an order for MAX1122BEGK+TD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1122BEGK+TD 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 MAX1122BEGK+TD reliable?
The price and inventory of MAX1122BEGK+TD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1122BEGK+TD is usually 5 days.
3.What payment methods are accepted for MAX1122BEGK+TD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1122BEGK+TD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1122BEGK+TD?
MAX1122BEGK+TD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1122BEGK+TD 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 MAX1122BEGK+TD?
For technical support, including MAX1122BEGK+TD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1122BEGK+TD requirements.
6.How does Aetrix verify that MAX1122BEGK+TD is sourced from the original manufacturer or authorized distributors?
All MAX1122BEGK+TD 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 MAX1122BEGK+TD meets industry standards.
7.What is the process for return or replacement of MAX1122BEGK+TD?
All MAX1122BEGK+TD units undergo pre-shipment inspection (PSI). If there is an issue with MAX1122BEGK+TD, 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 MAX1122BEGK+TD part is unused and in its original packaging.
Return procedure for MAX1122BEGK+TD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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