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Analog Devices Inc. ADG732BSUZ-REEL
- Part No.:
- ADG732BSUZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Package:
- 48-TQFP
- Datasheet:
-
ADG732BSUZ-REEL.pdf
- Description:
- IC MUX 32:1 5.5OHM 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,271
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Product details
Overview
ADG732BSUZ-REEL from Analog Devices is a monolithic 32-channel analog multiplexer IC designed for high-precision signal routing in data acquisition and test systems. It features 4 Ω on-resistance at +5 V single supply, rail-to-rail operation from +1.8 V to +5.5 V or ±2.5 V dual supply, and guaranteed break-before-make switching. It routes one of 32 analog inputs (S1–S32) to a common drain (D) under 5-bit address control (A0–A4), supporting battery-powered instrumentation and ATE.
For engineers reviewing the ADG732BSUZ-REEL datasheet, ADG732BSUZ-REEL pinout, ADG732BSUZ-REEL application, or ADG732BSUZ-REEL equivalent, key selection criteria include on-resistance flatness (0.5 Ω typ), leakage current (±1 nA max at −40°C to +125°C), transition time (23 ns typ), 48-lead LFCSP package thermal performance (θJA = 25°C/W), and EN/WR latched digital interface compatibility with microcontrollers.
Technical Context
The ADG732BSUZ-REEL implements a single 1-of-32 decoder architecture with level-sensitive address latches updated on the rising edge of WR. Its CMOS switch array uses an enhanced submicron process to achieve low charge injection (5 pC typ) and high off isolation (−72 dB typ at 1 MHz).
Digital control includes active-low EN for global disable and active-low CS for channel enable, while analog signal handling supports full rail-to-rail input ranges (0 V to VDD or VSS to VDD) and blocks signals beyond supply rails in the off state. All channels exhibit guaranteed break-before-make action with 18 ns typical tD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On resistance | 4 Ω typical at +5 V/25°C - enables low insertion loss and minimal signal distortion in precision analog paths |
| Supply range | +1.8 V to +5.5 V single or ±2.5 V dual - supports portable, industrial, and mixed-signal systems without level-shifting |
| Transition time | 23 ns typical - allows multiplexing of signals up to ~18 MHz bandwidth (−3 dB BW = 18 MHz) |
| Off leakage | ±10 nA max at −40°C to +125°C - ensures minimal error in high-impedance sensor or medical front-end circuits |
| Charge injection | 5 pC typical - reduces settling error and droop in sample-and-hold or switched-capacitor applications |
| Break-before-make delay | 18 ns typical - prevents momentary shorting during channel switching, critical for relay replacement |
| Package | 48-lead LFCSP (7 mm × 7 mm) - provides low thermal resistance (25°C/W) for sustained high-channel-count operation |
Pinout & Package
The ADG732BSUZ-REEL is housed in a 48-lead LFCSP (Lead Frame Chip Scale Package) with exposed pad requiring connection to GND for thermal and electrical integrity. Pin 1 is located at top-left per JEDEC MO-220 standard; pin numbering proceeds counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S1–S32 | Source terminals | 32 bidirectional analog I/O pins; S1–S12 and S45–S48 are top-row sources, S25–S40 are bottom-row sources |
| D | Drain terminal | Common analog output/input (pin 43); connects to selected Sx channel when enabled |
| A0–A4 | Address inputs | 5-bit binary control (pins 15–19); selects one of 32 channels; latched on WR rising edge |
| CS | Chip select | Active-low enable (pin 20); must be low for channel selection; independent of EN |
| WR | Write strobe | Rising-edge-triggered latch (pin 21); captures A0–A4 and EN state into internal registers |
| EN | Enable input | Active-low global disable (pin 22); overrides address logic - all switches open when high |
| VDD (×2) | Positive supply | Pins 13 & 14 accept +1.8 V to +5.5 V; dual-supply use requires connection to +2.5 V |
| VSS | Negative supply | Pin 24 accepts −2.5 V in dual mode; tied to GND in single-supply operation |
| GND | Ground reference | Pin 23 serves as 0 V reference for logic and analog sections; EPAD must connect to same net |
| EPAD | Exposed thermal pad | Internally connected to GND; mandatory solder connection for thermal dissipation and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal range | Supports input voltages from VSS to VDD - eliminates external clamping in ±2.5 V or 0 V–5 V systems |
| Guaranteed break-before-make | Prevents transient shorts between channels during switching - essential for fault-tolerant ATE and medical safety |
| Latched digital interface | WR-controlled address capture enables reliable microprocessor interfacing without timing-critical strobes |
| Low on-resistance flatness | 0.5 Ω typical variation across signal range - maintains amplitude accuracy in wide-dynamic-range measurements |
| Ultra-low leakage current | ±10 nA max over −40°C to +125°C - preserves signal integrity in high-impedance pH, ECG, or piezoelectric sensor paths |
| Thermally optimized LFCSP | 25°C/W junction-to-ambient thermal resistance - sustains continuous 32-channel operation without derating |
Applications
| Optical Instrumentation | Data Acquisition Systems |
|---|---|
Use Scenario: Routing photodiode or avalanche photodiode (APD) outputs from multiple optical channels to a shared transimpedance amplifier. IC Role / Device Role / Timing Role: 32:1 analog multiplexer providing low-noise, low-leakage signal selection with <23 ns transition time. Use Value: Enables high-channel-count optical spectrometers without gain/offset drift from switch resistance variation. | Use Scenario: Scanning 32 thermocouple, RTD, or strain gauge inputs in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Precision analog switch with 4 Ω RON and 0.5 Ω flatness ensuring consistent measurement accuracy across all channels. Use Value: Eliminates need for per-channel calibration due to matched on-resistance and low charge injection. |
| Automatic Test Equipment (ATE) | Battery-Powered Medical Devices |
Use Scenario: Signal path switching in semiconductor functional testers requiring nanosecond-scale channel reconfiguration. IC Role / Device Role / Timing Role: High-speed multiplexer with guaranteed break-before-make and 18 ns tD preventing DUT short-circuits. Use Value: Supports >50 kSPS multiplexed sampling without cross-talk or settling errors in production test fixtures. | Use Scenario: Electrode selection in portable ECG monitors with 12-lead capability and ultra-low power budget. IC Role / Device Role / Timing Role: Low-leakage (±10 nA max), low-power (10 μA IDD typ) analog switch operating from 3.3 V supply. Use Value: Extends battery life while maintaining diagnostic-grade signal fidelity for ST-segment analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG732BRUZ | Same die, 48-lead TQFP package (θJA = 54.6°C/W); higher thermal resistance and larger footprint | Preferred where PCB real estate permits and hand-soldering or legacy layout reuse is required | Select ADG732BRUZ only if LFCSP assembly infrastructure is unavailable; identical electrical specs but reduced thermal headroom |
| MAX4618ESE+ | 16-channel, 3.5 Ω RON, +2.7 V to +12 V supply; no dual-supply support; different pinout and control logic | Suitable for lower-channel-count, higher-voltage industrial I/O where ±2.5 V operation is unnecessary | Choose MAX4618ESE+ only when 16 channels suffice and supply exceeds 3.3 V; not drop-in compatible |
Compared with ADG732BRUZ, the ADG732BSUZ-REEL offers superior thermal performance and smaller footprint, while the MAX4618ESE+ trades channel count and dual-supply flexibility for higher voltage tolerance and marginally lower on-resistance - neither is pin-compatible, requiring layout revision.
Availability
ADG732BSUZ-REEL is available at Aetrix Electronics and suitable for automatic test equipment (ATE), portable medical instrumentation, optical sensing systems, and industrial data acquisition requiring stable component supply across extended temperature ranges (−40°C to +125°C).
Supply support for ADG732BSUZ-REEL 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 ADG732 forms part of Analog Devices' precision analog switch portfolio, engineered for low on-resistance, low leakage, and fast switching in demanding instrumentation and test applications.
FAQ
What is the maximum operating temperature for ADG732BSUZ-REEL?
The ADG732BSUZ-REEL is rated for continuous operation from −40°C to +125°C ambient temperature, as specified in the Absolute Maximum Ratings table. This extended range supports deployment in automotive engine control units, industrial motor drives, and downhole oilfield sensors where thermal robustness is critical. The 48-lead LFCSP package's 25°C/W thermal impedance helps maintain junction temperature within safe limits under full 32-channel load.
Does ADG732BSUZ-REEL support dual-supply operation?
Yes, ADG732BSUZ-REEL supports ±2.5 V dual-supply operation with VDD = +2.5 V and VSS = −2.5 V. In this mode, the analog signal range extends from −2.5 V to +2.5 V, enabling bipolar signal routing without level-shifting. On-resistance remains 4 Ω typical, and leakage currents are specified at ±0.25 nA typical, making it suitable for precision audio and sensor interfaces requiring true bipolar swing.
How does the WR pin function in ADG732BSUZ-REEL?
The WR (Write) pin on ADG732BSUZ-REEL is a rising-edge-triggered latch that captures the states of A0–A4, EN, and CS inputs. While WR is low, the address inputs are transparent; on the rising edge, the values are latched into internal registers to configure the selected channel. This asynchronous latching simplifies microcontroller interfacing and eliminates setup/hold timing constraints on address lines, unlike purely level-sensitive architectures.
Is ADG732BSUZ-REEL pin-compatible with ADG726 devices?
No, ADG732BSUZ-REEL is not pin-compatible with ADG726 variants. The ADG732 uses a 5-bit address bus (A0–A4) and single CS pin, whereas the ADG726 uses a 4-bit bus (A0–A3) and dual CSA/CSB pins for differential operation. Pin 19 is A4 on ADG732BSUZ-REEL but CSA on ADG726, and pin 20 is CS on ADG732BSUZ-REEL but CSB on ADG726 - direct substitution would cause functional failure without PCB redesign.
What is the purpose of the exposed pad (EPAD) on ADG732BSUZ-REEL?
The exposed pad (EPAD) on ADG732BSUZ-REEL is electrically connected to GND and serves two critical functions: thermal dissipation and noise reduction. With a thermal impedance of 25°C/W, it conducts heat from the silicon die to the PCB ground plane, enabling sustained operation at full channel count. It must be soldered to a solid GND copper area using ≥6 thermal vias; floating or unconnected EPAD degrades both thermal performance and analog PSRR.
ADG732BSUZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 32:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 5.5Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- ±2.5V
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- 18MHz
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 13pF, 275pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -72dB @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TQFP (7x7)
ADG732BSUZ-REEL FAQ
1.How can I place an order for ADG732BSUZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADG732BSUZ-REEL 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 ADG732BSUZ-REEL reliable?
The price and inventory of ADG732BSUZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADG732BSUZ-REEL is usually 5 days.
3.What payment methods are accepted for ADG732BSUZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADG732BSUZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADG732BSUZ-REEL?
ADG732BSUZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADG732BSUZ-REEL 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 ADG732BSUZ-REEL?
For technical support, including ADG732BSUZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADG732BSUZ-REEL requirements.
6.How does Aetrix verify that ADG732BSUZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADG732BSUZ-REEL 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 ADG732BSUZ-REEL meets industry standards.
7.What is the process for return or replacement of ADG732BSUZ-REEL?
All ADG732BSUZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADG732BSUZ-REEL, 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 ADG732BSUZ-REEL part is unused and in its original packaging.
Return procedure for ADG732BSUZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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