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Analog Devices Inc./Maxim Integrated MAX320ESA+T
- Part No.:
- MAX320ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX320ESA+T.pdf
- Description:
- IC SWITCH SPST-NOX2 35OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,520
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Product details
Overview
The MAX320ESA+T from Maxim Integrated is a precision dual SPST analog switch with two normally open (NO) channels, designed for ±3V to ±8V bipolar supply operation. It delivers 35Ω max on-resistance, <2Ω channel-to-channel RON matching, and ultra-low 5pC max charge injection - enabling high-fidelity signal routing in ±5V DAC/ADC interfaces and battery-powered test equipment.
For engineers reviewing the MAX320ESA+T datasheet, MAX320ESA+T pinout, MAX320ESA+T application, or MAX320ESA+T equivalent, key selection criteria include guaranteed break-before-make timing (not applicable), low leakage (<2.5nA at +85°C), fast switching (tON < 150ns), and ESD robustness (>2000V per Method 3015.7).
Technical Context
The MAX320ESA+T implements CMOS-based transmission-gate architecture with bipolar-supply-compatible control logic, supporting bidirectional analog signal routing across the full V– to V+ range. Its matched RON and flat RON profile (<4Ω) ensure minimal gain error and THD in precision instrumentation paths.
Charge injection is tightly controlled (≤5pC) via balanced gate drive and layout symmetry, critical for sample-and-hold accuracy. Input logic thresholds scale with V+ (VINH = V+ – 1.5V, VINL = V+ – 2.5V), enabling interoperability with mixed-voltage digital controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 35Ω max at ±5V - ensures ≤0.1% gain error in 10kΩ signal paths |
| RON Matching | <2Ω max - maintains channel balance in differential or ratiometric circuits |
| Charge Injection | 5pC max - limits voltage glitch to <5mV on 1nF hold capacitors |
| Leakage Current | 100pA max at +25°C; <2.5nA at +85°C - preserves long-term hold accuracy |
| Switching Speed | tON < 150ns, tOFF < 100ns - supports >5MHz multiplexed sampling |
| ESD Protection | >2000V per Method 3015.7 - enables handling without special precautions |
| Supply Range | ±3V to ±8V - compatible with legacy ±5V and modern ±3.3V systems |
Pinout & Package
MAX320ESA+T is housed in an 8-pin SO (Small Outline) package, rated for –40°C to +85°C operation. The package features gull-wing leads, 1.27mm pitch, and JEDEC MS-012AC compliance.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NO1 | Normally open analog terminal for Channel 1 - connects to COM1 when IN1 = logic low |
| 2 | COM2 | Common analog terminal for Channel 2 - bidirectional signal path shared with NO2/NC2 |
| 3 | IN2 | Digital control input for Channel 2 - active-low logic drives switch state |
| 4 | V− | Negative power supply rail - must be established before analog inputs |
| 5 | V+ | Positive power supply rail - sets logic threshold and analog range bounds |
| 6 | COM1 | Common analog terminal for Channel 1 - bidirectional signal path shared with NO1 |
| 7 | IN1 | Digital control input for Channel 1 - active-low logic drives switch state |
| 8 | NO2 | Normally open analog terminal for Channel 2 - connects to COM2 when IN2 = logic low |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance flatness | <4Ω variation over full ±5V analog range - minimizes harmonic distortion in audio/video paths |
| Bipolar supply support | Operates from ±3V to ±8V - eliminates level-shifting in legacy industrial ±5V systems |
| Ultra-low power dissipation | <1.25mW at ±5V - extends runtime in portable multimeters and handheld analyzers |
| Guaranteed charge injection | ≤5pC - ensures sub-12-bit settling in 16-bit sample-and-hold front-ends |
| High off-isolation | 72dB at 1MHz - suppresses crosstalk between adjacent channels in dense PCB layouts |
Applications
| Battery-Powered Test Equipment | ±5V Precision ADC/DAC Interfaces |
|---|---|
Use Scenario: Portable digital multimeters and handheld oscilloscope front-ends requiring low-leakage, low-distortion signal routing under battery power. IC Role / Device Role / Timing Role: Dual SPST analog switch managing input range selection and reference path isolation. Use Value: 100pA max leakage preserves microvolt-level DC accuracy; 150ns switching enables rapid auto-ranging. |
Use Scenario: Industrial data acquisition modules interfacing ±5V SAR ADCs and multiplying DACs with sensor conditioning circuitry. IC Role / Device Role / Timing Role: Precision analog switch isolating calibration references and routing differential sensor signals. Use Value: 2Ω RON matching prevents gain mismatch in ratiometric measurements; 5pC charge injection avoids hold capacitor corruption. |
| Audio Signal Routing | Military Radio Front-Ends |
Use Scenario: Programmable audio mixers and headset switching in ruggedized communication terminals. IC Role / Device Role / Timing Role: Bidirectional analog switch selecting microphone/line inputs and speaker/headphone outputs. Use Value: 35Ω RON and 9pF off-capacitance maintain wideband frequency response; ±8V tolerance accommodates headroom margins. |
Use Scenario: RF receiver protection and IF signal path switching in manpack and vehicular radios operating across –40°C to +85°C. IC Role / Device Role / Timing Role: High-reliability analog switch enabling antenna diversity and filter bank selection. Use Value: 2000V ESD rating withstands field handling; 100nA leakage stability ensures consistent sensitivity over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1421BRMZ | Single-supply only (±15V max); higher RON (1.3Ω typical); no guaranteed charge injection spec | Requires level-shifting for ±5V systems; better suited for high-voltage industrial PLC I/O | Select when operating from single +12V/+15V rails and high-voltage tolerance is prioritized over charge injection |
| TS5A23157DGSR | Lower supply range (2.5V–5.5V); smaller 3.5Ω RON; 15pC charge injection; no bipolar support | Optimized for 3.3V portable devices; incompatible with true ±5V signal chains | Select for cost-sensitive consumer electronics where bipolar supplies are absent and 12-bit accuracy suffices |
Compared with ADG1421BRMZ and TS5A23157DGSR, the MAX320ESA+T uniquely supports true bipolar ±5V operation with guaranteed 5pC charge injection and 100pA leakage - making it the only option for precision, battery-powered, ±5V signal routing without level translation.
Availability
MAX320ESA+T is available at Aetrix Electronics and suitable for battery-operated test equipment, ±5V precision data converters, military radio front-ends, and audio routing systems requiring stable component supply across extended temperature ranges.
Supply support for MAX320ESA+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) designs high-performance analog and mixed-signal ICs for industrial, communications, and computing applications.
The MAX320ESA+T belongs to Maxim's precision analog switch product line, engineered specifically for low-distortion, low-leakage signal routing in bipolar-supply instrumentation and portable measurement systems.
FAQ
What is the maximum allowable supply voltage range for the MAX320ESA+T?
The MAX320ESA+T operates from ±3V to ±8V dual supplies, with absolute maximum ratings specifying V+ up to (V− − 0.3V) and +17V total differential. Exceeding ±8V risks exceeding internal junction limits and degrading RON flatness. For reliable operation in ±5V systems - the most common use case - the MAX320ESA+T delivers optimal performance with 35Ω max RON and <2Ω matching.
Does the MAX320ESA+T support break-before-make switching?
No, the MAX320ESA+T does not implement break-before-make functionality. That feature is exclusive to the MAX322 variant (one NO + one NC switch). The MAX320ESA+T contains two normally open switches only, with independent IN1/IN2 control. Simultaneous activation of both channels is electrically permissible but requires external logic coordination to avoid unintended signal shorting in shared-path topologies.
What is the guaranteed charge injection specification for the MAX320ESA+T, and why does it matter?
The MAX320ESA+T guarantees ≤5pC maximum charge injection, measured with CL = 1.0nF and RGEN = 0Ω. This parameter directly impacts sample-and-hold accuracy: injecting 5pC into a 1nF capacitor causes a 5mV step error, limiting resolution in 12-bit+ systems. The MAX320ESA+T's 5pC spec - verified across temperature - ensures predictable settling behavior in precision data acquisition front-ends where the MAX320ESA+T routes sensor or reference signals.
Can the MAX320ESA+T be used with single-supply systems?
The MAX320ESA+T is designed for dual-supply operation and does not support true single-supply use. While its logic inputs tolerate voltages down to V−, the analog signal range remains bounded by V− to V+, requiring both rails. For single-supply applications (e.g., 3.3V or 5V only), Maxim recommends the pin-compatible MAX323/MAX324/MAX325 family - which share identical RON, leakage, and speed specs but are optimized for 3V–15V unipolar operation.
What package type and temperature grade does the MAX320ESA+T have?
The MAX320ESA+T is supplied in an 8-pin SO (Small Outline) package compliant with JEDEC MS-012AC, featuring gull-wing leads and 1.27mm pitch. It is rated for operation from –40°C to +85°C, making it suitable for industrial and extended-temperature commercial applications. This temperature grade is confirmed in Maxim's official ordering information table, where "ESA" suffix denotes the SO package and "E" grade temperature range.
MAX320ESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 300mOhm
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 9pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX320ESA+T FAQ
1.How can I place an order for MAX320ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX320ESA+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 MAX320ESA+T reliable?
The price and inventory of MAX320ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX320ESA+T is usually 5 days.
3.What payment methods are accepted for MAX320ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX320ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX320ESA+T?
MAX320ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX320ESA+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 MAX320ESA+T?
For technical support, including MAX320ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX320ESA+T requirements.
6.How does Aetrix verify that MAX320ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX320ESA+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 MAX320ESA+T meets industry standards.
7.What is the process for return or replacement of MAX320ESA+T?
All MAX320ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX320ESA+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 MAX320ESA+T part is unused and in its original packaging.
Return procedure for MAX320ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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