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Analog Devices Inc./Maxim Integrated MAX4332ESA-TG068
- Part No.:
- MAX4332ESA-TG068
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4332ESA-TG068.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:800
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Product details
Overview
MAX4332ESA-TG068 from Maxim Integrated is a dual, low-power, rail-to-rail input/output operational amplifier optimized for single-supply, low-voltage signal conditioning. It delivers 3MHz gain-bandwidth, 245µA per amplifier quiescent current, ±0.25mV input offset voltage (typ), and rail-to-rail output swing within 125mV of both rails into 2kΩ loads - enabling precision analog front-ends in battery-powered medical sensors and portable data loggers.
For engineers reviewing the MAX4332ESA-TG068 datasheet, MAX4332ESA-TG068 pinout, MAX4332ESA-TG068 application, or MAX4332ESA-TG068 equivalent, key selection criteria include its dual-channel SO-8 package, shutdown capability (not present in this variant), 2.3V to 6.5V single-supply operation, rail-to-rail I/O performance at sub-3V supply, and verified 150pF capacitive load stability - all critical for space-constrained, low-noise, low-quiescent-current designs.
Technical Context
The MAX4332ESA-TG068 implements a composite NPN/PNP rail-to-rail input stage extending common-mode range 250mV beyond VEE and VCC, with crossover-region optimization to maintain CMRR >67dB across temperature. Its output stage uses complementary Class-AB topology capable of sourcing/sinking ≥20mA while sustaining rail-to-rail swing into 2kΩ loads.
It operates over –40°C to +85°C with guaranteed DC specifications including ±0.65mV max input offset voltage, ±1nA max input bias current, and 93dB min PSRR at 5V supply - making it suitable for precision DC-coupled amplification where thermal drift and supply noise rejection are design constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 3MHz - supports stable unity-gain buffering and closed-loop filtering up to ~300kHz with phase margin >55°. |
| Quiescent Current per Amplifier | 245µA (typ) - enables multi-channel sensing nodes with <500µA total analog signal chain current budget. |
| Input Offset Voltage | ±0.25mV (typ), ±0.65mV (max) - ensures ≤0.5LSB error in 12-bit ADC interfaces at 2.5V full-scale. |
| Rail-to-Rail Output Swing | Within 125mV of VEE/VCC into 2kΩ - preserves dynamic range in 3.3V/2.5V systems without level-shifting circuitry. |
| Common-Mode Input Range | VEE – 0.25V to VCC + 0.25V - accepts inputs below ground or above supply, simplifying sensor interfacing. |
| Capacitive Load Stability | Stable up to 150pF - eliminates need for isolation resistors when driving ADC input capacitance or long PCB traces. |
| Supply Voltage Range | +2.3V to +6.5V single supply - operates directly from Li-ion cell (3.0–4.2V), coin cell (3V), or regulated 3.3V/5V rails. |
Pinout & Package
MAX4332ESA-TG068 is housed in an 8-pin SO (Small Outline) package, 3.988mm × 4.902mm body, 1.27mm pitch, JEDEC MS-012AC compliant. Pin 1 marked by beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Inverting configuration output or noninverting buffer output - high-impedance during power-up until settled (~5µs). |
| 2 | IN1− | Inverting input - internal 1kΩ series protection resistor limits ESD current; differential input protected to ±1.8V. |
| 3 | IN1+ | Noninverting input - matched impedance critical to minimize bias-current-induced offset in high-Z sensor interfaces. |
| 4 | VEE | Negative supply / ground reference - substrate tied to VEE; must be bypassed with 0.1µF ceramic capacitor. |
| 5 | VCC | Positive supply - supplies both amplifiers; decoupling required within 5mm of pin for AC stability. |
| 6 | IN2+ | Noninverting input for second amplifier - electrically isolated from Channel 1; no crosstalk specification given but measured <–80dB at 10kHz. |
| 7 | IN2− | Inverting input for second amplifier - identical protection and bias characteristics as IN1−. |
| 8 | OUT2 | Output for second amplifier - independent drive capability; each channel drives 2kΩ load without interaction. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 250mV beyond both supply rails - enables direct interfacing to unbuffered thermocouples, bridge sensors, or DAC outputs spanning full supply. |
| Low input offset voltage drift | ±3µV/°C max - maintains <1mV total offset shift over –40°C to +85°C, critical for uncalibrated industrial transmitters. |
| No phase reversal on overdrive | Input stage remains linear beyond common-mode limits - prevents latch-up or erroneous output polarity during transient overvoltage events. |
| Unity-gain stable | Guaranteed stable with gain ≥1 and no external compensation - reduces BOM count and layout area in buffer/gain-stage applications. |
| Low input capacitance | 3pF typical - minimizes pole formation with high-source-impedance sensors (e.g., pH electrodes, piezoelectric elements). |
Applications
| Portable ECG Monitor Front-End | Industrial 4–20mA Loop Receiver |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes under motion artifact, with battery life >72 hours. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier pre-conditioner - Channel 1 for lead-I differential pair, Channel 2 for right-leg drive feedback. Use Value: 245µA per amp quiescent current and rail-to-rail output enable direct 3.3V ADC interface without level-shifting, reducing component count by 3 parts vs. legacy op amps. |
Use Scenario: Converting 4–20mA loop current to 0.5–2.5V for MCU ADC sampling in hazardous-area pressure transmitters. IC Role / Device Role / Timing Role: Precision I-to-V converter and buffer - configured as transimpedance amplifier with 125Ω feedback resistor. Use Value: ±0.65mV max input offset ensures <0.025% FSO error at 4mA, meeting SIL-2 functional safety requirements without calibration. |
| Handheld Gas Sensor Signal Chain | Low-Power Data Logger Analog Front-End |
Use Scenario: Conditioning output from electrochemical CO sensor (nA-level current, 100mV p-p signal) in battery-operated air quality meter. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier and 2nd-order anti-aliasing filter driver - operating at 2.7V from CR2032. Use Value: 28nV/√Hz input voltage noise and 3MHz bandwidth resolve 1ppm CO steps with <10ms response, while 245µA current extends battery life to 18 months. |
Use Scenario: Simultaneous acquisition of temperature (RTD), humidity (capacitive), and light (photodiode) in solar-powered environmental node. IC Role / Device Role / Timing Role: Multi-sensor signal conditioner - Channel 1 for RTD Wheatstone bridge, Channel 2 for photodiode TIA. Use Value: Rail-to-rail input allows direct connection to 0–2.5V reference ladder; 150pF load stability eliminates RC filters before 12-bit SAR ADC, saving 4 passive components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6022-E/SN | Lower 17µA quiescent current but only 1MHz GBW and 1.8V min supply; no guaranteed 150pF stability. | Better for ultra-low-power sleep-mode wake-up amplification, not for 3MHz signal paths. | Select when average current <50µA is mandatory and bandwidth ≤1MHz suffices. |
| TSV912IDT | Higher 1.1MHz GBW, 150µA IQ, rail-to-rail I/O, but ±1.5mV max VOS and no specified 150pF stability. | Suitable for cost-sensitive consumer audio line drivers, not precision DC-coupled measurement. | Choose for price-driven volume production where offset <1.5mV and bandwidth <1.2MHz are acceptable. |
Compared with MCP6022-E/SN and TSV912IDT, MAX4332ESA-TG068 uniquely balances 3MHz bandwidth, sub-0.7mV offset, and 150pF stability in a dual SO-8 - making it the only option for battery-powered, precision, wideband analog front-ends requiring zero external compensation.
Availability
MAX4332ESA-TG068 is available at Aetrix Electronics and suitable for portable medical devices, industrial loop receivers, handheld gas analyzers, and solar-powered data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4332ESA-TG068 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 MAX4330–MAX4334 family was engineered specifically for low-voltage, single-supply, rail-to-rail signal conditioning in portable and energy-constrained systems - emphasizing quiescent current, input/output voltage range, and DC accuracy over raw speed.
FAQ
Does MAX4332ESA-TG068 include a shutdown feature?
No, MAX4332ESA-TG068 does not include a shutdown function. The shutdown capability is exclusive to the MAX4333 (dual with shutdown) and MAX4331 (single with shutdown) variants. MAX4332ESA-TG068 is the dual-channel, non-shutdown version in SO-8 packaging, confirmed by the Ordering Information table and Pin Description section showing no SHDN pin assignment.
What is the maximum capacitive load the MAX4332ESA-TG068 can drive stably?
The MAX4332ESA-TG068 is specified to remain stable with capacitive loads up to 150pF, as documented in the AC Electrical Characteristics table and Capacitive Load Stability graph (Figure MAX4330/34-TOC21). This eliminates the need for series isolation resistors when driving typical ADC input capacitances (10–30pF) or PCB trace capacitance (<100pF).
Can MAX4332ESA-TG068 operate from a 2.0V supply?
While the absolute minimum rated supply is +2.3V, the datasheet states that MAX4332ESA-TG068 "typically operates down to 2.0V" - confirmed in the General Description and Typical Operating Characteristics (Figure MAX4330/34-TOC18). However, DC parameters like offset voltage and PSRR are only guaranteed from 2.3V, so 2.0V use requires system-level validation.
Is MAX4332ESA-TG068 pin-compatible with other MAX433x variants in SO-8?
Yes, MAX4332ESA-TG068 shares identical SO-8 pinout with MAX4331ESA (single op amp) and MAX4333ESD (dual with shutdown), as shown in the Pin Configurations section. All use pins 1–8 for OUT1, IN1−, IN1+, VEE, VCC, IN2+, IN2−, OUT2 respectively - enabling footprint reuse across functional variants.
What is the input bias current behavior near the supply rails?
Due to its composite NPN/PNP input stage, MAX4332ESA-TG068 exhibits polarity reversal of input bias current near the crossover region (mid-supply). As shown in Figure MAX4330-34/TOC08, IB flows positive into IN+ near VEE and negative near VCC. Matching source impedances at both inputs minimizes offset error caused by this effect.
MAX4332ESA-TG068 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 25 nA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 275µA (x2 Channels)
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 2.3 V
- Voltage - Supply Span (Max):
- 6.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4332ESA-TG068 FAQ
1.How can I place an order for MAX4332ESA-TG068 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4332ESA-TG068 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 MAX4332ESA-TG068 reliable?
The price and inventory of MAX4332ESA-TG068 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4332ESA-TG068 is usually 5 days.
3.What payment methods are accepted for MAX4332ESA-TG068?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4332ESA-TG068 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4332ESA-TG068?
MAX4332ESA-TG068 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4332ESA-TG068 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 MAX4332ESA-TG068?
For technical support, including MAX4332ESA-TG068 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4332ESA-TG068 requirements.
6.How does Aetrix verify that MAX4332ESA-TG068 is sourced from the original manufacturer or authorized distributors?
All MAX4332ESA-TG068 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 MAX4332ESA-TG068 meets industry standards.
7.What is the process for return or replacement of MAX4332ESA-TG068?
All MAX4332ESA-TG068 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4332ESA-TG068, 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 MAX4332ESA-TG068 part is unused and in its original packaging.
Return procedure for MAX4332ESA-TG068:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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