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Analog Devices Inc. ADG732BCPZ
- Part No.:
- ADG732BCPZ
- Manufacturer:
- Analog Devices Inc.
- Package:
- 48-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADG732BCPZ.pdf
- Description:
- IC MUX 32:1 5.5OHM 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,024
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Product details
Overview
ADG732BCPZ from Analog Devices is a 32-channel, single-pole analog multiplexer IC with 4 Ω on-resistance at +5 V supply, rail-to-rail signal handling (0 V to VDD or ±2.5 V), and 23 ns typical transition time. It features 5-bit address decoding (A0–A4), active-low EN and CS control, and operates from +1.8 V to +5.5 V single supply or ±2.5 V dual supply - used in precision data acquisition systems requiring low distortion and high channel density.
For engineers reviewing the ADG732BCPZ datasheet, ADG732BCPZ pinout, ADG732BCPZ application, or ADG732BCPZ equivalent, key selection criteria include guaranteed break-before-make switching, 0.5 Ω on-resistance flatness, −72 dB off isolation at 1 MHz, and compatibility with microprocessor-controlled latching via WR strobe.
Technical Context
The ADG732BCPZ implements a monolithic CMOS 1-of-32 decoder architecture with level-sensitive address latches updated on the rising edge of WR. Its enhanced submicron process enables low leakage (±1 nA max off-leakage at +125°C) and tight channel matching (0.3 Ω typical RON match).
It supports both single-supply (1.8–5.5 V) and dual-supply (±2.5 V) operation with identical functional behavior: analog input range extends rail-to-rail, all channels exhibit break-before-make action, and digital inputs are TTL/CMOS-compatible with <5 pF input capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel count | 32 independent analog switches, selectable via 5-bit binary address (A0–A4) |
| On resistance (RON) | 4 Ω typical at +5 V / 25°C - ensures minimal signal attenuation and gain error in precision measurement paths |
| On-resistance flatness | 0.5 Ω typical - maintains consistent gain across full signal swing (0 V to VDD) |
| Transition time | 23 ns typical - supports >10 MSPS multiplexed sampling in high-speed DAQ systems |
| Off isolation | −72 dB typical at 1 MHz - suppresses crosstalk between inactive and active channels |
| Supply range | +1.8 V to +5.5 V single or ±2.5 V dual - enables direct interface with 1.8 V logic and legacy 5 V systems |
| Leakage current | ±10 nA max off-leakage at −40°C to +125°C - preserves accuracy in high-impedance sensor front-ends |
Pinout & Package
ADG732BCPZ is packaged in a 48-lead LFCSP (7 mm × 7 mm, CP-48-4), with exposed thermal pad requiring connection to GND for optimal thermal performance and EMI suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S1–S32 | Analog source terminals | 32 bidirectional switch inputs; each connects to common drain D when selected |
| D | Common drain/output | Single bidirectional analog output node shared by all 32 channels |
| A0–A4 | Binary address inputs | 5-bit latchable control determining which Sx connects to D (0–31 decimal) |
| CS | Active-low chip select | Enables switching function only when low; high disables all channels |
| WR | Write strobe | Rising edge latches A0–A4 and EN state; transparent while low |
| EN | Active-low enable | Global disable: high forces all switches open regardless of address or CS |
| VDD, VSS, GND | Power rails | VDD = +1.8–5.5 V (or +2.5 V); VSS = 0 V (single) or −2.5 V (dual); GND = reference |
| NIC (Pins 41, 42, 44) | No-connect | Must remain unconnected; internal floating node with no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal range | Supports full-scale signals from VSS to VDD - eliminates level-shifting in ±2.5 V or 0–5 V systems |
| Guaranteed break-before-make | 18 ns typical tD prevents momentary shorting during channel transitions - critical for fault-tolerant sensor muxing |
| Low charge injection | 5 pC typical - minimizes voltage glitch on high-impedance nodes (e.g., SAR ADC sample capacitors) |
| Microprocessor-compatible interface | Level-sensitive latches with WR strobe and TTL/CMOS input thresholds - simplifies FPGA/microcontroller integration |
| Ultra-low power operation | 10 μA typical IDD at +5.5 V - enables battery-powered portable instrumentation with long runtime |
Applications
| Optical Sensor Multiplexing | Data Acquisition Front-End |
|---|---|
|
Use Scenario: Selecting among 32 photodiode or pyroelectric sensor outputs in a compact environmental monitor. IC Role / Device Role / Timing Role: Analog multiplexer routing sensor signals to a shared precision ADC input. Use Value: 4 Ω RON and 0.5 Ω flatness preserve small-signal integrity; −72 dB isolation prevents optical crosstalk between adjacent channels. |
Use Scenario: Scanning 32 thermocouple or strain gauge inputs in industrial PLC analog input modules. IC Role / Device Role / Timing Role: High-density analog switch enabling sequential sampling without external relays. Use Value: ±10 nA max off-leakage at +125°C ensures <0.1% gain error in high-Z sensor interfaces over temperature. |
| Automated Test Equipment (ATE) | Battery-Powered Medical Instrumentation |
|
Use Scenario: Routing DUT signals to multiple test instruments (oscilloscope, DMM, signal generator) in modular ATE racks. IC Role / Device Role / Timing Role: Fast-switching, low-crosstalk multiplexer enabling multi-point parametric testing. Use Value: 23 ns transition time and 18 MHz −3 dB bandwidth support 20+ kSPS channel scanning rates. |
Use Scenario: Multiplexing ECG electrode leads or EEG channels in handheld patient monitors. IC Role / Device Role / Timing Role: Low-power, rail-to-rail analog switch enabling direct connection to low-voltage ADCs. Use Value: 10 μA supply current and +1.8 V minimum operation extend battery life in Class II medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG731BRUZ | 32-channel serial-interface variant (SPI) with same RON, package, and supply specs | Reduces GPIO count vs. parallel-addressed ADG732BCPZ; requires SPI controller instead of address bus | Select ADG731BRUZ when board space or MCU pin count is constrained and SPI is available |
| MAX4617ESE+ | 32-channel, 5 Ω RON, +2.7–5.5 V only, no dual-supply support, TSSOP-28 package | Limited to single-supply; smaller package but higher RON and no ±2.5 V operation | Choose MAX4617ESE+ only for cost-sensitive, single-rail 3.3 V systems where dual-supply capability is unnecessary |
Compared with ADG732BCPZ, ADG731BRUZ offers identical analog performance with reduced control wiring overhead, while MAX4617ESE+ trades dual-supply flexibility and lower on-resistance for lower cost and smaller footprint in 3.3 V–only designs.
Availability
ADG732BCPZ is available at Aetrix Electronics and suitable for data acquisition systems, automated test equipment, and battery-powered medical instrumentation requiring stable component supply, extended temperature support (−40°C to +125°C), and long-term production continuity.
Supply support for ADG732BCPZ 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 ADG732BCPZ belongs to Analog Devices' precision analog switch portfolio, engineered for low on-resistance, ultra-low leakage, and rail-to-rail operation in demanding measurement and control applications.
FAQ
What is the maximum operating temperature range for the ADG732BCPZ?
The ADG732BCPZ is rated for continuous operation from −40°C to +125°C, making it suitable for under-hood automotive, industrial control, and high-reliability instrumentation environments. This extended range is confirmed in Table 5 (Absolute Maximum Ratings) and validated across all electrical specifications in the +5 V, +3 V, and ±2.5 V supply tables.
Does the ADG732BCPZ support dual-supply operation, and what are the valid voltage ranges?
Yes, the ADG732BCPZ supports true dual-supply operation with VDD = +2.5 V ±10% and VSS = −2.5 V ±10%, enabling rail-to-rail analog signal handling from −2.5 V to +2.5 V. This mode is fully characterized in Table 3 and maintains all key specs including 4 Ω RON and −72 dB off isolation.
How does the WR pin function in the ADG732BCPZ, and is it required for normal operation?
The WR (write) pin is essential for latching address and enable states: the ADG732BCPZ uses level-sensitive latches that update on the rising edge of WR. While WR can be held low for transparent operation, reliable deterministic switching requires strobing WR to capture A0–A4 and EN values - confirmed in Figure 3 timing diagram and Table 11 truth table.
What is the purpose of the NIC pins (41, 42, 44) on the ADG732BCPZ LFCSP package?
Pins 41, 42, and 44 on the ADG732BCPZ are marked NIC (Not Internally Connected) and must remain unconnected per Table 9 and Figure 7. These are unused bond pads with no internal circuit connection - connecting them risks noise coupling or mechanical stress on the die without functional benefit.
Can the ADG732BCPZ be used in a differential configuration like the ADG726?
No - the ADG732BCPZ is a single 32:1 multiplexer with one drain (D) and two banks of sources (S1–S16, S17–S32). Unlike the ADG726 (dual 16:1 or differential 16-channel), it lacks separate CSA/CSB pins and dual-drain outputs. Its functional block diagram (Figure 2) and pinout (Table 9) confirm a single-ended topology.
ADG732BCPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Tray
- 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-LFCSP (7x7)
ADG732BCPZ FAQ
1.How can I place an order for ADG732BCPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADG732BCPZ 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 ADG732BCPZ reliable?
The price and inventory of ADG732BCPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADG732BCPZ is usually 5 days.
3.What payment methods are accepted for ADG732BCPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADG732BCPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADG732BCPZ?
ADG732BCPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADG732BCPZ 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 ADG732BCPZ?
For technical support, including ADG732BCPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADG732BCPZ requirements.
6.How does Aetrix verify that ADG732BCPZ is sourced from the original manufacturer or authorized distributors?
All ADG732BCPZ 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 ADG732BCPZ meets industry standards.
7.What is the process for return or replacement of ADG732BCPZ?
All ADG732BCPZ units undergo pre-shipment inspection (PSI). If there is an issue with ADG732BCPZ, 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 ADG732BCPZ part is unused and in its original packaging.
Return procedure for ADG732BCPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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