My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX9370EKA-T
- Part No.:
- MAX9370EKA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
MAX9370EKA-T.pdf
- Description:
- LOGIC LEVEL TRANSLATOR
- Quantity:
- Payment:
- Shipping:
Inventory:1,838
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX9370EKA-T from Maxim Integrated is a dual LVTTL/TTL-to-differential LVPECL/PECL translator IC designed for high-speed clock and data distribution in telecom and datacom systems. It operates up to 1.5GHz, delivers 600mV differential output swing, exhibits 270ps typical propagation delay, and supports 3.0V–5.25V supply voltage-enabling use in 3.3V or 5.0V infrastructure such as DSLAM timing modules.
For engineers reviewing the MAX9370EKA-T datasheet, MAX9370EKA-T pinout, MAX9370EKA-T application, or MAX9370EKA-T equivalent, this device is selected for precision level translation where low skew (10ps), deterministic jitter control (40ps p-p), and flow-through SOT23-8 layout are critical in high-frequency clock tree design.
Technical Context
The MAX9370EKA-T implements two independent bipolar transistor-based LVTTL/TTL input stages driving complementary LVPECL/PECL differential outputs terminated to VCC − 2.0V. Its flow-through pinout minimizes trace length mismatch between input and corresponding output pairs, directly supporting <10ps output-to-output skew under matched termination.
It features internal pull-up circuitry that forces outputs high when inputs are open, eliminating need for external biasing. The device uses a fixed 50Ω output termination reference point and requires external 50Ω resistors to VCC − 2.0V on each differential pair to maintain signal integrity at >1GHz operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | Up to 1.5GHz max toggle rate with ≥600mV differential swing-supports OC-48/STM-16 clock distribution. |
| Propagation Delay | 270ps typical (200–400ps over temp)-enables sub-nanosecond timing alignment in multi-channel clock fanout. |
| Output-to-Output Skew | 10ps typical (7–50ps over temp)-critical for maintaining phase coherence across dual translated clocks. |
| Supply Voltage Range | 3.0V to 5.25V-allows direct integration into both 3.3V and 5.0V system rails without level-shifting circuitry. |
| Differential Output Swing | 600mV (guaranteed)-meets LVPECL logic threshold requirements for reliable interfacing with ECL-family receivers. |
| Input Compatibility | LVTTL/TTL logic thresholds (VIH = 2.0V min, VIL = 0.8V max)-ensures interoperability with FPGA I/O banks and microcontroller GPIOs. |
| Junction Temp Range | −40°C to +150°C-supports industrial-grade thermal margin in enclosed base station enclosures. |
Pinout & Package
MAX9370EKA-T is housed in an 8-pin SOT23 package (JEDEC MO-178AA), measuring 2.95mm × 2.80mm × 1.30mm, with gull-wing leads and 0.65mm pitch. Thermal resistance θJA is 78°C/W with 500LFPM airflow.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SOT23) | Q0 (noninverting) | Differential LVPECL output channel 0; must be terminated with 50Ω to VCC − 2.0V for proper common-mode bias. |
| 2 (SOT23) | Q0 (inverting) | Complementary LVPECL output for channel 0; paired with Pin 1 to deliver true differential signaling. |
| 3 (SOT23) | Q1 (noninverting) | Differential LVPECL output channel 1; electrically isolated from Q0 path to minimize crosstalk. |
| 4 (SOT23) | Q1 (inverting) | Complementary LVPECL output for channel 1; matched trace routing required to preserve <10ps skew vs. Q1. |
| 5 (SOT23) | GND | Low-impedance ground reference; connects directly to PCB ground plane to minimize noise coupling into sensitive analog outputs. |
| 6 (SOT23) | D1 (input) | LVTTL/TTL input for channel 1; internally pulled up-drives Q1/Q1 high if left floating. |
| 7 (SOT23) | D0 (input) | LVTTL/TTL input for channel 0; independent of D1-enables asynchronous dual-channel translation. |
| 8 (SOT23) | VCC | Positive supply rail; requires local 0.1µF + 0.01µF ceramic decoupling placed adjacent to pin per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent translators | Enables simultaneous clock/data translation for two separate signal paths without shared timing bottlenecks. |
| Flow-through pinout | Minimizes PCB trace length asymmetry-reduces inter-pair skew and simplifies controlled-impedance routing. |
| Open-input fail-safe | Internal pull-up ensures defined high-differential output state during power-up, reset, or disconnected source conditions. |
| ESD protection >2kV HBM | Protects against handling damage during board assembly and field maintenance without requiring external TVS diodes. |
| Bipolar process technology | Delivers consistent high-speed performance across temperature with low jitter accumulation (<40ps p-p deterministic). |
Applications
| Precision Clock Distribution | DSLAM Timing Module |
|---|---|
|
Use Scenario: Distributing a single 155.52MHz reference clock to multiple SONET framer ASICs within a compact line card. IC Role / Device Role / Timing Role: Dual-channel LVPECL translator providing matched-delay, low-skew copies of the reference to two downstream devices. Use Value: 10ps output skew ensures <0.1° phase error at 155MHz-meeting SONET jitter budget requirements for BER <10⁻¹². |
Use Scenario: Converting TTL-level sync pulses from a central timing shelf to differential LVPECL for backplane distribution in DSL access multiplexers. IC Role / Device Role / Timing Role: Level-shifting interface between legacy TTL timing controllers and modern PECL-synchronized line cards. Use Value: 3.0V–5.25V supply range allows direct connection to existing 3.3V control logic without additional regulators or level shifters. |
| Base Station RF Clocking | Mass Storage Controller Interface |
|
Use Scenario: Driving dual LO synthesizers in a 3G/4G macro base station transceiver module using a common TCXO reference. IC Role / Device Role / Timing Role: Fanout buffer translating one LVTTL clock into two synchronized LVPECL outputs for independent PLLs. Use Value: 270ps propagation delay and 40ps deterministic jitter preserve phase accuracy needed for EVM-compliant RF modulation. |
Use Scenario: Interfacing a SATA controller's 1.5GHz reference clock to dual high-speed SERDES lanes in enterprise SSD controller ASICs. IC Role / Device Role / Timing Role: High-fidelity clock translator ensuring differential integrity across split clock domains in storage SoCs. Use Value: Guaranteed 600mV swing at 1GHz meets SATA Gen1/Gen2 receiver sensitivity specs while maintaining <1ps RMS random jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LVTTL-to-LVPECL translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC100EPT22DG | Single-channel, 3.3V-only supply (3.0–3.6V), 100Ω emitter-follower output stage. | Requires external termination network; lacks open-input fail-safe behavior. | Select when only one channel is needed and system uses strict 3.3V rails with pre-designed termination. |
| SY100EL15ZC | Single-channel, 3.3V supply, 1.2ns max propagation delay, no guaranteed 1GHz operation. | Lower frequency ceiling limits use in OC-48+ systems; higher skew (50ps) impacts multi-ASIC synchronization. | Choose for cost-sensitive, lower-speed applications where <1GHz bandwidth is not required. |
Compared with MC100EPT22DG and SY100EL15ZC, the MAX9370EKA-T provides dual-channel operation, wider supply flexibility (3.0–5.25V), guaranteed 1GHz performance, and built-in fail-safe logic-making it optimal for telecom infrastructure requiring robust, scalable clock distribution.
Availability
MAX9370EKA-T is available at Aetrix Electronics and suitable for precision clock distribution, DSLAM timing modules, and base station RF clocking requiring stable component supply across extended temperature and long production lifecycles.
Supply support for MAX9370EKA-T 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX9370EKA-T belongs to Maxim's high-speed timing interface product line, engineered specifically for telecom and datacom applications demanding sub-nanosecond timing fidelity, differential signal integrity, and robust operation across wide supply and temperature ranges.
FAQ
What is the maximum operating frequency supported by the MAX9370EKA-T?
The MAX9370EKA-T is guaranteed to operate up to 1.0GHz with ≥600mV differential output swing and characterized to 1.5GHz under typical conditions. Its 270ps propagation delay and 10ps output skew enable reliable use in OC-48 (2.488Gbps) clock recovery paths when paired with appropriate termination and layout practices. The MAX9370EKA-T maintains specified AC performance across −40°C to +85°C ambient temperature.
Does the MAX9370EKA-T require external pull-up or pull-down resistors on its inputs?
No, the MAX9370EKA-T does not require external pull-up or pull-down resistors on its D0 or D1 inputs. It includes internal pull-up circuitry that drives both output pairs to a high-differential state when inputs are left unconnected-providing fail-safe behavior during power-up, test, or signal loss. This eliminates board space and BOM cost associated with discrete biasing components.
What termination configuration is required for the LVPECL outputs of the MAX9370EKA-T?
The MAX9370EKA-T LVPECL outputs must be terminated with 50Ω resistors connected to VCC − 2.0V-either as discrete resistors or via Thevenin-equivalent networks. Both Q and Q_ of each differential pair must be terminated identically to minimize output-to-output skew. Single-ended extraction from either Q or Q_ requires termination of both legs to preserve common-mode stability and signal integrity.
Can the MAX9370EKA-T operate from a 5.0V supply rail?
Yes, the MAX9370EKA-T supports supply voltages from 3.0V to 5.25V, making it fully compatible with standard 5.0V logic rails. Unlike the MAX9372 variant (limited to 3.0–3.6V), the MAX9370EKA-T maintains full AC specifications-including 1.5GHz toggle capability and 270ps propagation delay-across the entire 5.0V operating point, enabling drop-in use in legacy 5V telecom systems.
How does the MAX9370EKA-T compare to the MAX9371 in terms of channel count and pin compatibility?
The MAX9370EKA-T is a dual-channel translator with eight pins dedicated to two independent LVTTL-to-LVPECL paths (D0→Q0/Q0_, D1→Q1/Q1_), while the MAX9371 is a single-channel version occupying the same 8-pin SOT23 footprint but with four NC pins. They are not pin-compatible: MAX9370EKA-T uses Pins 1–4 for outputs and 6–7 for inputs, whereas MAX9371 assigns Pins 2–3 and 7–8 to outputs and Pin 7 to input-requiring distinct PCB layouts for each device.
MAX9370EKA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- Packaging:
- Bulk
- Product Status:
- Active
- Translator Type:
- Mixed Signal
- Channel Type:
- Unidirectional
- Number of Circuits:
- 2
- Channels per Circuit:
- 1
- Voltage - VCCA:
- -
- Voltage - VCCB:
- -
- Input Signal:
- LVTTL, TTL
- Output Signal:
- LVPECL, PECL
- Output Type:
- Complementary
- Data Rate:
- 1.5GHz
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
MAX9370EKA-T FAQ
1.How can I place an order for MAX9370EKA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9370EKA-T 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 MAX9370EKA-T reliable?
The price and inventory of MAX9370EKA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9370EKA-T is usually 5 days.
3.What payment methods are accepted for MAX9370EKA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9370EKA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9370EKA-T?
MAX9370EKA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9370EKA-T 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 MAX9370EKA-T?
For technical support, including MAX9370EKA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9370EKA-T requirements.
6.How does Aetrix verify that MAX9370EKA-T is sourced from the original manufacturer or authorized distributors?
All MAX9370EKA-T 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 MAX9370EKA-T meets industry standards.
7.What is the process for return or replacement of MAX9370EKA-T?
All MAX9370EKA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9370EKA-T, 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 MAX9370EKA-T part is unused and in its original packaging.
Return procedure for MAX9370EKA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9370EKA-T Tags
-
74LVC1T45GW,125
Nexperia USA Inc.
-
74LVCH2T45DC,125
Nexperia USA Inc.
-
SN74LVC1T45DBVR
Texas Instruments
-
SN74LVC1T45DRLR
Texas Instruments
-
SN74LVC1T45DPKR
Texas Instruments
-
SN74LVC2T45DCTR
Texas Instruments
-
74LVC2T45GT,115
Nexperia USA Inc.
-
SN74LVC1T45YZPR
Texas Instruments
-
LSF0102DCUR
Texas Instruments
-
SN74LVC1T45DCKR
Texas Instruments
-
TXS0102DCTR
Texas Instruments
-
FXLP34P5X
onsemi
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…
