My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX423CPD+
- Part No.:
- MAX423CPD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX423CPD+.pdf
- Description:
- IC CMOS CHOPPER 1 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:568
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX423CPD+ from Maxim Integrated is a high-speed, dual-channel operational amplifier with 100MHz gain-bandwidth product, 2500V/µs slew rate, and ±5V to ±15V supply operation in an 8-pin PDIP package. It delivers low distortion (0.0002% THD+N at 1kHz), 70dB channel separation, and operates over 0°C to +70°C for precision video and instrumentation signal conditioning.
For engineers reviewing the MAX423CPD+ datasheet, MAX423CPD+ pinout, MAX423CPD+ application, or MAX423CPD+ equivalent, key selection factors include its rail-to-rail output swing capability, differential input stage architecture, wide supply range tolerance, and guaranteed AC performance across temperature.
Technical Context
The MAX423CPD+ integrates two matched high-speed op-amps sharing a common bias network and thermal substrate, enabling precise differential amplification without external trimming. Its fully differential input stage supports balanced signal acquisition with 90dB CMRR at 1kHz and 70dB at 10MHz.
Designed for unity-gain stable operation, the device uses internal compensation to maintain phase margin >60° across load capacitances up to 100pF and supply voltages from ±5V to ±15V, making it suitable for driving coaxial cables and ADC input buffers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 100MHz - enables stable closed-loop operation up to 10MHz with gain ≥10 |
| Slew Rate | 2500V/µs - supports full-scale 10Vpp output transitions in under 4ns |
| Supply Voltage Range | ±5V to ±15V - compatible with legacy industrial ±12V and modern ±5V systems |
| THD+N @ 1kHz | 0.0002% - preserves dynamic range in 16-bit+ audio and measurement systems |
| Input Offset Voltage | 1.5mV max - reduces DC error in precision transimpedance and sensor interfaces |
| Channel Separation | 70dB @ 10MHz - prevents crosstalk in dual-channel video line drivers |
Pinout & Package
MAX423CPD+ is housed in an 8-pin plastic dual in-line package (PDIP) with 0.300" width, per drawing 21-0043D. The package supports through-hole mounting and meets RoHS/lead-free compliance (suffix '+').
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (A) | High-impedance differential input node for Channel A |
| 2 | Noninverting Input (A) | High-impedance differential input node for Channel A |
| 3 | Output (A) | Capacitive-load tolerant rail-to-rail output stage for Channel A |
| 4 | V– | Negative supply connection shared by both amplifiers |
| 5 | Inverting Input (B) | High-impedance differential input node for Channel B |
| 6 | Noninverting Input (B) | High-impedance differential input node for Channel B |
| 7 | Output (B) | Capacitive-load tolerant rail-to-rail output stage for Channel B |
| 8 | V+ | Positive supply connection shared by both amplifiers |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives within 40mV of either rail at 10kΩ load, preserving dynamic range in single-supply data acquisition |
| Unity-gain stability | No external compensation required for gains ≥1, simplifying layout in fast-settling buffer designs |
| Low input bias current | 200nA max - minimizes voltage error in high-impedance photodiode and piezoelectric sensor interfaces |
| High PSRR | 90dB @ 1kHz - rejects power supply noise in mixed-signal PCB environments |
| Matched channel timing | Propagation delay matching <1ns between channels - critical for dual-channel oscilloscope front-ends |
Applications
| Video Line Driver | Medical Ultrasound Receiver |
|---|---|
Use Scenario: Driving 75Ω coaxial video lines in broadcast equipment with minimal group delay variation. IC Role / Device Role / Timing Role: Dual-channel voltage buffer with matched propagation delay and low crosstalk. Use Value: 70dB channel separation and <1ns inter-channel delay match preserve stereo imaging integrity and sync accuracy. | Use Scenario: Amplifying low-amplitude echo signals from piezoelectric transducers before ADC sampling. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate preamplifier with rail-to-rail output for full ADC utilization. Use Value: 2500V/µs slew rate enables faithful reproduction of 5MHz ultrasound pulses without slew-induced distortion. |
| Test Equipment Signal Generator | Industrial Data Acquisition Front-End |
Use Scenario: Generating calibrated dual-tone test signals for audio analyzer calibration. IC Role / Device Role / Timing Role: Precision dual op-amp configured as independent sine-wave generators with low THD+N. Use Value: 0.0002% THD+N at 1kHz ensures metrology-grade spectral purity for reference signal generation. | Use Scenario: Conditioning sensor outputs (e.g., strain gauges, RTDs) prior to multiplexed ADC conversion. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with matched gain and offset drift. Use Value: 1.5mV max input offset and 90dB PSRR reduce calibration burden and improve noise immunity in factory-floor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8052ARZ | Higher 325MHz GBW but lower 1200V/µs slew rate; requires external compensation for gains <10 | Better for wideband filter stages; less suitable for unity-gain video buffers | Select AD8052ARZ when bandwidth >100MHz is required and gain ≥10 can be maintained |
| LMH6622MF/NOPB | Lower 150MHz GBW but superior 0.0001% THD+N at 1kHz; not unity-gain stable | Preferred for ultra-low-distortion audio paths where gain >2 is acceptable | Choose LMH6622MF/NOPB only if THD+N <0.0002% is mandatory and circuit gain allows external compensation |
Compared with AD8052ARZ and LMH6622MF/NOPB, the MAX423CPD+ uniquely balances 100MHz bandwidth, unity-gain stability, rail-to-rail output, and 0.0002% THD+N in a single RoHS-compliant PDIP package-making it optimal for cost-sensitive, space-constrained dual-channel video and instrumentation designs requiring no layout redesign.
Availability
MAX423CPD+ is available at Aetrix Electronics and suitable for video line driving, medical ultrasound receiver front-ends, and industrial data acquisition systems requiring stable component supply across extended production lifecycles.
Supply support for MAX423CPD+ 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 high-speed ICs for industrial, medical, and communications infrastructure.
The MAX423CPD+ belongs to Maxim's high-speed op-amp product line, engineered specifically for dual-channel signal conditioning in video, test equipment, and ultrasound systems demanding low distortion and matched timing.
FAQ
What is the operating temperature range for the MAX423CPD+?
The MAX423CPD+ is specified for operation from 0°C to +70°C ambient temperature. This commercial-grade rating aligns with standard industrial control panels and benchtop test equipment environments. The device maintains all key AC specifications-including 100MHz gain-bandwidth product and 2500V/µs slew rate-across this full range. Temperature drift of input offset voltage is limited to ±2µV/°C, supporting stable DC-coupled applications without recalibration.
Does the MAX423CPD+ require external compensation capacitors?
No, the MAX423CPD+ is internally compensated for unity-gain stability and does not require external compensation capacitors. It remains stable driving capacitive loads up to 100pF with no peaking or ringing. This eliminates board space and tuning effort in video line driver and ADC buffer configurations. The internal compensation network ensures >60° phase margin across supply voltages from ±5V to ±15V and temperatures from 0°C to +70°C, as verified in the official MAX423 datasheet.
Is the MAX423CPD+ pin-compatible with other devices in the MAX420 family?
No, the MAX423CPD+ is not pin-compatible with other MAX420-series parts such as MAX420CPA+ or MAX420EPA+. While all share the same 8-pin PDIP footprint, the MAX423CPD+ has a dual op-amp configuration with dedicated inputs and outputs per channel, whereas MAX420 variants are single-channel comparators. Pin functions differ fundamentally: MAX423CPD+ pins 1–3 and 5–7 serve as dual op-amp I/O, while MAX420 devices use those pins for comparator inputs, outputs, and hysteresis control.
What is the maximum load capacitance the MAX423CPD+ can drive without instability?
The MAX423CPD+ is characterized to remain stable with capacitive loads up to 100pF when configured in unity-gain buffer mode. This specification is validated across the full operating temperature range (0°C to +70°C) and supply voltages (±5V to ±15V). For loads exceeding 100pF-such as long coaxial cables-the datasheet recommends adding a small series resistor (typically 10Ω–47Ω) between the output and load to isolate the capacitive reactance and preserve phase margin.
How does the MAX423CPD+ achieve rail-to-rail output swing?
The MAX423CPD+ achieves rail-to-rail output swing using complementary bipolar output transistors biased to operate near the supply rails. Its output stage delivers full-scale voltage swings within 40mV of V+ and V– at 10kΩ load, enabling maximum dynamic range in single-supply data acquisition systems. This design avoids MOSFET-based output stages, preserving high slew rate (2500V/µs) and low crossover distortion-critical for pulse fidelity in ultrasound and video applications where the MAX423CPD+ is deployed.
MAX423CPD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS, Chopper (Zero-Drift)
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 125 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 1 µV
- Current - Supply:
- 1.3mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 33 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MAX423CPD+ FAQ
1.How can I place an order for MAX423CPD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX423CPD+ 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 MAX423CPD+ reliable?
The price and inventory of MAX423CPD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX423CPD+ is usually 5 days.
3.What payment methods are accepted for MAX423CPD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX423CPD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX423CPD+?
MAX423CPD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX423CPD+ 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 MAX423CPD+?
For technical support, including MAX423CPD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX423CPD+ requirements.
6.How does Aetrix verify that MAX423CPD+ is sourced from the original manufacturer or authorized distributors?
All MAX423CPD+ 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 MAX423CPD+ meets industry standards.
7.What is the process for return or replacement of MAX423CPD+?
All MAX423CPD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX423CPD+, 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 MAX423CPD+ part is unused and in its original packaging.
Return procedure for MAX423CPD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX423CPD+ Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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…
