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Home > Products > Integrated Circuits (ICs) > Linear > Special Purpose Amplifiers

Analog Devices Inc. ADA4937-2YCPZ-RL

Name: ADA4937-2YCPZ-RL
Brand: Analog Devices Inc.
SKU: ADA4937-2YCPZ-RL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADA4937-2YCPZ-RL

Manufacturer:: Analog Devices Inc.

Category:: Special Purpose Amplifiers

Package:: 24-WFQFN Exposed Pad, CSP

Datasheet:: ADA4937-2YCPZ-RL.pdf

Description:: IC ADC DRIVER 24LFCSP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ADA4937-2YCPZ-RL from Analog Devices is a dual-channel, ultralow distortion differential ADC driver fabricated in SiGe bipolar process. It delivers −113 dBc HD2 at 10 MHz (3.3 V supply), 1.8 GHz −3 dB bandwidth, 2.2 nV/√Hz input voltage noise, and supports single-ended-to-differential or differential-to-differential conversion for high-resolution data acquisition up to 16 bits.

For engineers reviewing the ADA4937-2YCPZ-RL datasheet, ADA4937-2YCPZ-RL pinout, ADA4937-2YCPZ-RL application, or ADA4937-2YCPZ-RL equivalent, key selection criteria include harmonic distortion performance at IF/baseband frequencies, output common-mode adjustability, power-down functionality per channel, thermal resistance (θJA = 67°C/W), and LFCSP-24 package layout compatibility with high-speed PCB design rules.

Technical Context

The ADA4937-2YCPZ-RL implements a fully differential architecture with independent VOCM inputs per amplifier and dedicated power-down pins (PD1/PD2) enabling channel-level sleep control. Its internal common-mode feedback loop ensures exceptional output balance (−61 dB error at 10 MHz) and suppresses even-order harmonics.

It operates from 3.3 V to 5 V single supply, supports externally set gain via four-resistor feedback networks, and maintains stable performance across −40°C to +105°C. The 24-lead 4 mm × 4 mm LFCSP package includes an exposed paddle thermally anchored to PCB ground or power plane.

Key Specifications

Parameter	Value and Actual Design Meaning
−3 dB Bandwidth	1.8 GHz at 3.3 V supply - enables wideband IF sampling up to 100 MHz without gain peaking.
HD2 @ 10 MHz	−113 dBc (3.3 V) - preserves SFDR in 14–16-bit ADC front-ends for communications receivers.
Input Voltage Noise	2.2 nV/√Hz - minimizes added noise in low-amplitude signal chains before high-gain ADC stages.
Slew Rate	4000 V/µs (3.3 V) - supports fast transient response for pulsed or modulated waveforms.
Overdrive Recovery	<1 ns - prevents settling errors after large input transients in time-interleaved or burst-mode systems.
Crosstalk	−72 dB at 100 MHz - isolates channels in dual-path I/Q or parallel ADC architectures.
Quiescent Current	38 mA per amplifier (3.3 V) - balances speed and power in thermally constrained RF subsystems.

Pinout & Package

The ADA4937-2YCPZ-RL is housed in a Pb-free, 4 mm × 4 mm, 24-lead LFCSP package with exposed thermal paddle (EP). The paddle is not electrically connected and must be soldered to PCB ground or power plane for optimal thermal performance (θJA = 67°C/W).

Pin/Terminal	Circuit Role	Design Meaning
1, 7, 12, 19, 24	−IN1, −IN2, +OUT2, −OUT1, +IN1	Differential input/output nodes - require matched trace lengths and controlled impedance (50 Ω) for minimal phase skew.
2, 6, 8, 11, 17, 18	+FB1, +IN2, +FB2, VOCM2, VOCM1, +OUT1	Feedback and common-mode control - VOCM pins set output DC level to match ADC input range; FB pins close gain loops.
3–4, 9–10, 15–16, 21–22	+VS1, +VS2, −VS2, −VS1	Supply rails - multiple pins reduce IR drop and inductance; decoupling capacitors required within 2 mm of each pair.
5, 14, 20	−FB2, PD2, PD1	Negative feedback and power-down - PD pins are CMOS-compatible; drive ≤1 V to disable, ≥2 V to enable channel.
EP	Exposed Paddle	Thermal interface only - must be soldered to solid copper area ≥100 mm² for reliable 105°C operation.

Key Features

Feature	Design Value
Adjustable Output Common-Mode	VOCM1/VOCM2 accept 1.2–3.8 V (5 V) or 1.2–2.1 V (3.3 V) to precisely align differential output with ADC input range.
Per-Channel Power-Down	PD1/PD2 independently disable amplifiers with 1 µs turn-off and 200 ns turn-on - enables dynamic power gating in multi-channel systems.
High Output Balance Accuracy	−61 dB output balance error at 10 MHz - reduces even-order distortion and improves ADC ENOB in differential signaling.
Low Input Bias Current Mismatch	±2 µA max input offset current - minimizes DC error when driving high-impedance sources or transformer-coupled inputs.
Robust Supply Range	3.0–5.25 V operation - supports both legacy 3.3 V and higher-performance 5 V data acquisition platforms.

Applications

Communications Receiver Front-End	High-Speed Data Acquisition System
Use Scenario: Digitizing 70 MHz IF signals from mixer outputs in LTE/5G base stations with 16-bit ADCs. IC Role / Device Role / Timing Role: Differential ADC driver providing gain, common-mode level shift, and distortion suppression before ADC sampling clock edge. Use Value: −85 dBc HD2 at 70 MHz (3.3 V) preserves SFDR > 90 dBFS, enabling accurate modulation error ratio (MER) measurement.	Use Scenario: Driving dual 14-bit, 125 MSPS ADCs in oscilloscope analog front-end with interleaved sampling. IC Role / Device Role / Timing Role: Dual-channel buffer with independent VOCM and PD control for synchronized I/Q path conditioning. Use Value: −72 dB crosstalk at 100 MHz prevents inter-channel interference; 1 ns overdrive recovery avoids waveform clipping on pulse edges.
Instrumentation Signal Chain	Medical Ultrasound Beamformer
Use Scenario: Amplifying low-noise sensor outputs (e.g., piezoresistive bridge) prior to programmable-gain instrumentation ADC. IC Role / Device Role / Timing Role: Precision differential gain block with 2.2 nV/√Hz noise and ±0.5 mV offset for DC-coupled signal conditioning. Use Value: Low RTI noise contributes <0.5 LSB error in 16-bit full-scale range; CMRR > 67 dB rejects supply ripple coupling.	Use Scenario: Conditioning echo return signals across 128-channel receive beamformer ASIC with time-aligned sampling. IC Role / Device Role / Timing Role: High-speed differential driver enabling channel multiplexing and dynamic range compression before ADC. Use Value: 1.8 GHz bandwidth supports >40 MHz ultrasound carrier frequencies; per-channel PD reduces idle power by 99% during non-active scan lines.

Communications Receiver Front-End

High-Speed Data Acquisition System

Use Scenario: Digitizing 70 MHz IF signals from mixer outputs in LTE/5G base stations with 16-bit ADCs.

IC Role / Device Role / Timing Role: Differential ADC driver providing gain, common-mode level shift, and distortion suppression before ADC sampling clock edge.

Use Value: −85 dBc HD2 at 70 MHz (3.3 V) preserves SFDR > 90 dBFS, enabling accurate modulation error ratio (MER) measurement.

Use Scenario: Driving dual 14-bit, 125 MSPS ADCs in oscilloscope analog front-end with interleaved sampling.

IC Role / Device Role / Timing Role: Dual-channel buffer with independent VOCM and PD control for synchronized I/Q path conditioning.

Use Value: −72 dB crosstalk at 100 MHz prevents inter-channel interference; 1 ns overdrive recovery avoids waveform clipping on pulse edges.

Instrumentation Signal Chain

Medical Ultrasound Beamformer

Use Scenario: Amplifying low-noise sensor outputs (e.g., piezoresistive bridge) prior to programmable-gain instrumentation ADC.

IC Role / Device Role / Timing Role: Precision differential gain block with 2.2 nV/√Hz noise and ±0.5 mV offset for DC-coupled signal conditioning.

Use Value: Low RTI noise contributes <0.5 LSB error in 16-bit full-scale range; CMRR > 67 dB rejects supply ripple coupling.

Use Scenario: Conditioning echo return signals across 128-channel receive beamformer ASIC with time-aligned sampling.

IC Role / Device Role / Timing Role: High-speed differential driver enabling channel multiplexing and dynamic range compression before ADC.

Use Value: 1.8 GHz bandwidth supports >40 MHz ultrasound carrier frequencies; per-channel PD reduces idle power by 99% during non-active scan lines.

Equivalent & Alternatives

The following parts are listed as comparable options for similar differential ADC driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADA4940-2ACPZ-R7	Lower bandwidth (1.1 GHz), lower distortion (−105 dBc HD2 @ 10 MHz), 3.3 V only, 16-lead LFCSP	Better suited for cost-sensitive, lower-frequency (<50 MHz) medical or industrial DAQ where power is constrained	Select when thermal budget is tighter (θJA = 95°C/W) and 16-bit ENOB at 30 MHz is sufficient.
THS4561IRHFT	Higher quiescent current (50 mA/ch), wider supply (2.7–5.4 V), 1.8 GHz bandwidth, 16-lead WQFN	Offers rail-to-rail output swing and integrated shutdown but lacks per-channel PD and VOCM flexibility	Prefer when driving SAR ADCs requiring full-scale swing or when board space favors smaller 3 mm × 3 mm package.

Compared with ADA4940-2ACPZ-R7 and THS4561IRHFT, the ADA4937-2YCPZ-RL uniquely combines dual-channel per-pin power-down, independent VOCM control, and best-in-class HD2 performance above 70 MHz - making it optimal for high-dynamic-range, multi-channel RF digitization where channel isolation and distortion headroom are critical.

Availability

ADA4937-2YCPZ-RL is available at Aetrix Electronics and suitable for communications receiver front-ends, high-speed data acquisition systems, and instrumentation signal chains requiring stable component supply, long-term lifecycle support, and guaranteed Pb-free compliance.

Supply support for ADA4937-2YCPZ-RL 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The ADA4937 family targets high-speed, ultralow distortion signal conditioning for precision data converters - specifically engineered to maximize ENOB and SFDR in 14–16-bit ADC applications from DC to 100 MHz.

FAQ

What is the maximum operating temperature range for the ADA4937-2YCPZ-RL?

The ADA4937-2YCPZ-RL is specified for continuous operation from −40°C to +105°C, meeting automotive-grade thermal requirements. This range is validated across all electrical parameters in the datasheet, including harmonic distortion, bandwidth, and output balance, ensuring reliability in harsh environments such as base station outdoor units or industrial test equipment.

Can the ADA4937-2YCPZ-RL drive a 50 Ω differential load directly?

Yes, the ADA4937-2YCPZ-RL can drive a 50 Ω differential load (i.e., 25 Ω per side) with linear output current of ±70 mA per amplifier at 5 V supply. At 3.3 V, linear output current is ±47 mA - sufficient for most 50 Ω applications when output swing remains within 0.8–2.5 V (single-ended) or 1.6–5.0 V (differential).

How does the power-down function operate on the ADA4937-2YCPZ-RL?

The ADA4937-2YCPZ-RL features two independent power-down pins (PD1 and PD2). Driving either pin to ≤1 V disables its respective amplifier, reducing quiescent current to 0.02–0.5 mA. Enabling requires ≥2 V. Turn-on time is 200 ns and turn-off time is 1 µs, allowing rapid channel gating in time-division multiplexed systems without external sequencing.

What is the purpose of the VOCM pins on the ADA4937-2YCPZ-RL?

The VOCM1 and VOCM2 pins set the common-mode voltage of each amplifier's differential output. They accept a DC voltage (1.2–3.8 V at 5 V supply) to precisely align the output midpoint with the input common-mode range of downstream ADCs - essential for maximizing dynamic range and avoiding clipping in DC-coupled signal chains.

Is the ADA4937-2YCPZ-RL compatible with single-ended input sources?

Yes, the ADA4937-2YCPZ-RL supports single-ended-to-differential conversion using standard resistor feedback networks. With one input grounded and signal applied to +IN or −IN, the device achieves balanced differential output while maintaining low harmonic distortion - confirmed in datasheet Figure 49 and Table 1 test conditions.

ADA4937-2YCPZ-RL Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 24-WFQFN Exposed Pad, CSP

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: ADC Driver

Applications:: Data Acquisition

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 24-LFCSP-WQ (4x4)

ADA4937-2YCPZ-RL FAQ

1.How can I place an order for ADA4937-2YCPZ-RL through Aetrix?

Please submit a Request for Quotation (RFQ) for ADA4937-2YCPZ-RL 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 ADA4937-2YCPZ-RL reliable?

The price and inventory of ADA4937-2YCPZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4937-2YCPZ-RL is usually 5 days.

3.What payment methods are accepted for ADA4937-2YCPZ-RL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4937-2YCPZ-RL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADA4937-2YCPZ-RL?

ADA4937-2YCPZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADA4937-2YCPZ-RL 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 ADA4937-2YCPZ-RL?

For technical support, including ADA4937-2YCPZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4937-2YCPZ-RL requirements.

6.How does Aetrix verify that ADA4937-2YCPZ-RL is sourced from the original manufacturer or authorized distributors?

All ADA4937-2YCPZ-RL 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 ADA4937-2YCPZ-RL meets industry standards.

7.What is the process for return or replacement of ADA4937-2YCPZ-RL?

All ADA4937-2YCPZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADA4937-2YCPZ-RL, 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 ADA4937-2YCPZ-RL part is unused and in its original packaging.

Return procedure for ADA4937-2YCPZ-RL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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