My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4691ETE+T
- Part No.:
- MAX4691ETE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX4691ETE+T.pdf
- Description:
- IC MUX 8:1 70OHM 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,488
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4691ETE+T from Maxim Integrated is an 8-channel analog multiplexer IC configured as a single-pole, 8-throw (SP8T) switch with rail-to-rail signal handling, 25Ω max on-resistance at ±4.5V dual supplies, guaranteed break-before-make timing, and operation from +2V to +11V single supply or ±2V to ±5.5V dual supplies. It serves in precision analog signal routing for battery-powered instrumentation and audio interfaces.
For engineers reviewing the MAX4691ETE+T datasheet, MAX4691ETE+T pinout, MAX4691ETE+T application, or MAX4691ETE+T equivalent, key selection criteria include on-resistance matching (≤3Ω max at ±4.5V), low leakage (≤20nA at +85°C), fast enable timing (≤150ns tON at +5V), and TQFN-EP package compatibility with high-density PCB layouts.
Technical Context
The MAX4691ETE+T implements a CMOS transmission-gate architecture with independent logic-level translators driving analog switches directly from V+ and V− rails. Its digital control uses three address inputs (A, B, C) and an active-high enable (EN) to select one of eight bidirectional analog paths between common X and inputs X0–X7.
It supports true rail-to-rail analog signal swing (0V to V+ or V− to V+) under single- or dual-supply operation, with internal ESD diodes clamping signals beyond supply rails. Break-before-make switching ensures no signal shorting during channel transitions, critical for avoiding transient glitches in measurement systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | 8:1 analog multiplexer (SP8T), bidirectional signal path |
| Supply Range | +2V to +11V single supply or ±2V to ±5.5V dual supply - enables flexible power architecture in mixed-signal systems |
| On-Resistance (RON) | 25Ω max at ±4.5V - ensures minimal signal attenuation and gain error in precision sensor front-ends |
| RON Matching | 3Ω max between channels at ±4.5V - preserves amplitude consistency across multiplexed sensor channels |
| Leakage Current | ±20nA max at +85°C - maintains DC accuracy in high-impedance pH or thermocouple circuits |
| Enable Turn-On Time | 150ns max at +5V - supports rapid channel scanning in data acquisition systems up to ~5 MHz effective rate |
| Break-Before-Make | 2ns min - eliminates cross-conduction risk when switching between voltage sources or sensors |
Pinout & Package
MAX4691ETE+T is housed in a 16-pin 3mm × 3mm TQFN-EP (thin quad flat no-lead with exposed pad) package, optimized for thermal performance and board space efficiency in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| X | Analog common terminal | Output node shared by all 8 switched paths; connects to ADC input or amplifier stage |
| X0–X7 | Analog input terminals | Eight independent bidirectional analog inputs; support rail-to-rail voltage range (V− to V+) |
| A, B, C | Digital address inputs | 3-bit binary select lines determining active channel (X0–X7); TTL/1.8V logic compatible |
| EN | Digital enable input | Active-high global enable; drives all switches open when logic low - used for power gating or fault isolation |
| V+ | Positive supply rail | Supplies analog switch gates and digital logic; must be bypassed with 0.1µF capacitor near pin |
| V− | Negative supply rail | Required for dual-supply operation; connect to GND for single-supply use - defines lower analog signal limit |
| GND | Digital ground reference | Reference for logic inputs only; analog signals are floating between V+ and V− - no ground return path needed |
| EP | Exposed thermal pad | Internally connected to V+; soldering improves thermal dissipation and reduces junction temperature rise |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports full analog swing from V− to V+, enabling direct interfacing with op-amps and sensors without level-shifting |
| Guaranteed break-before-make | Ensures >2ns dead time between channel disconnect and reconnect - prevents momentary shorts in power-sensitive circuits |
| Low 1nA typical leakage | Minimizes current injection into high-Z nodes (e.g., piezoelectric sensors or electrophysiology electrodes) |
| 1.8V logic compatibility | Accepts 1.8V logic thresholds at +3V supply - simplifies interface with modern ultra-low-power microcontrollers |
| High off-isolation (−82dB) | Reduces crosstalk between inactive channels at 100kHz - critical for multi-channel audio or RF signal routing |
Applications
| Audio Signal Routing | Portable Instrumentation |
|---|---|
Use Scenario: Switching between multiple microphone or line-level inputs in a handheld audio recorder. IC Role / Device Role / Timing Role: 8:1 analog multiplexer selecting one audio source to feed a single ADC or codec input. Use Value: 25Ω RON and −82dB off-isolation preserve SNR and prevent audible crosstalk between mic channels. |
Use Scenario: Multiplexing outputs from 8 temperature or pressure sensors in a battery-powered field data logger. IC Role / Device Role / Timing Role: Low-leakage (±20nA max) SP8T switch routing high-impedance sensor outputs to a shared precision ADC. Use Value: Guaranteed RON matching (≤3Ω) ensures consistent gain scaling across all sensor channels without per-channel calibration. |
| Cellular Baseband Interface | Battery-Operated Medical Devices |
Use Scenario: Selecting between RF front-end calibration paths or antenna diversity signals in LTE/WCDMA transceivers. IC Role / Device Role / Timing Role: Fast-switching (tON ≤150ns) multiplexer enabling dynamic reconfiguration of baseband signal chains during handover. Use Value: Single-supply operation down to +2V extends usable battery life in deep-discharge states while maintaining signal integrity. |
Use Scenario: Routing ECG electrode signals to differential amplifiers in a wearable cardiac monitor. IC Role / Device Role / Timing Role: Rail-to-rail SP8T switch handling ±2.5V biopotential signals with minimal distortion (THD = 0.02% at 20kHz). Use Value: Break-before-make timing prevents electrode shorting during lead-off detection sequences, ensuring patient safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG708BRUZ | 8:1 mux in 16-TSSOP; 4.5Ω RON at +5V; no dual-supply support; 30ns tON | Optimized for +5V-only systems with tighter timing budgets but lacks rail-to-rail swing below 0V | Select when board space allows TSSOP and system operates strictly at +5V with no negative signal components |
| TMUX1308PWR | 8:1 mux in 16-TSSOP; 4.3Ω RON at +5V; supports +1.8V to +5.5V supply; no V− pin | Single-supply only; lower RON but no bipolar capability - unsuitable for ±5V sensor interfaces | Prefer for ultra-low-voltage (1.8V) microcontroller interfaces where dual-supply operation is unnecessary |
Compared with ADG708BRUZ and TMUX1308PWR, the MAX4691ETE+T uniquely supports true dual-supply operation (±2V to ±5.5V), enabling seamless integration with bipolar sensor front-ends and legacy industrial signal chains without external level shifters or supply splitting.
Availability
MAX4691ETE+T is available at Aetrix Electronics and suitable for portable instrumentation, cellular baseband interface, and battery-operated medical devices requiring stable component supply across extended temperature ranges (−40°C to +85°C) and long production lifecycles.
Supply support for MAX4691ETE+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 precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The MAX4691ETE+T belongs to Maxim's low-voltage analog switch family, engineered for high-fidelity signal routing in space-constrained, battery-sensitive systems where rail-to-rail performance and supply flexibility are critical.
FAQ
What is the maximum analog signal voltage range supported by the MAX4691ETE+T?
The MAX4691ETE+T supports rail-to-rail analog signal handling from V− to V+. With dual ±5V supplies, this spans −5V to +5V; with single +5V supply (V− = GND), it covers 0V to +5V. Absolute maximum ratings prohibit exceeding V− − 0.3V or V+ + 0.3V at any analog pin - always observe these limits to avoid ESD diode conduction and potential damage.
Does the MAX4691ETE+T require external pull-up or pull-down resistors on its digital control pins?
No, the MAX4691ETE+T does not require external biasing on A, B, C, or EN pins. Its digital inputs have built-in leakage-limited structure with VIH = +2V (min) and VIL = +0.8V (max) at +5V supply, and are fully compatible with standard CMOS/TTL logic drivers. Floating inputs are not recommended - tie unused address lines to GND or V+ to ensure deterministic channel selection.
Can the MAX4691ETE+T operate reliably at +2.5V single supply?
Yes, the MAX4691ETE+T is specified for single-supply operation from +2V to +11V. At +2.5V, typical on-resistance rises to ~70Ω (max), and switching times increase - but functionality remains guaranteed across −40°C to +85°C. For low-RON performance, use ≥+3V supply; for ultra-low-power sleep modes, +2.5V is viable with relaxed timing requirements.
How is thermal performance managed in the MAX4691ETE+T's TQFN-EP package?
The MAX4691ETE+T's TQFN-EP package features an exposed thermal pad (EP) that must be soldered to a PCB copper pour connected to V+. This provides low-thermal-resistance path from die to board, limiting junction temperature rise. With proper layout (≥200mm² copper area), θJA drops to ~135°C/W - enabling continuous operation at full rated current without derating in compact enclosures.
Is the MAX4691ETE+T pin-compatible with other members of the MAX4691–MAX4694 family?
No, the MAX4691ETE+T is not pin-compatible with MAX4692ETE+T, MAX4693ETE+T, or MAX4694ETE+T. While all share the same 16-pin TQFN-EP footprint, their pin functions differ significantly: MAX4691 uses X0–X7 and X; MAX4692 uses X0–X3/Y0–Y3/X/Y; MAX4693 uses X0/X1/Y0/Y1/Z0/Z1/X/Y/Z; MAX4694 adds W0/W1 and separate control logic. PCB layout must match the exact variant.
MAX4691ETE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 70Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm
- Voltage - Supply, Single (V+):
- 2.7V ~ 11V
- Voltage - Supply, Dual (V±):
- ±2V ~ 5.5V
- Switch Time (Ton, Toff) (Max):
- 300ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 0.1pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 68pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -75dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (4x4)
MAX4691ETE+T FAQ
1.How can I place an order for MAX4691ETE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4691ETE+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 MAX4691ETE+T reliable?
The price and inventory of MAX4691ETE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4691ETE+T is usually 5 days.
3.What payment methods are accepted for MAX4691ETE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4691ETE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4691ETE+T?
MAX4691ETE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4691ETE+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 MAX4691ETE+T?
For technical support, including MAX4691ETE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4691ETE+T requirements.
6.How does Aetrix verify that MAX4691ETE+T is sourced from the original manufacturer or authorized distributors?
All MAX4691ETE+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 MAX4691ETE+T meets industry standards.
7.What is the process for return or replacement of MAX4691ETE+T?
All MAX4691ETE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4691ETE+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 MAX4691ETE+T part is unused and in its original packaging.
Return procedure for MAX4691ETE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4691ETE+T Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
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…
