ADA4096-4ACPZ - 30V Quad Micropower RRIO Op-Amp | Analog Devices
MPN: ADA4096-4ACPZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.9 | $9.90 |
| 10 | $8.91 | $89.10 |
| 100 | $7.92 | $792.00 |
| 500 | $7.13 | $3,565.00 |
| 1,000 | $6.34 | $6,340.00 |
ADA4096-4ACPZ Overview
An operational amplifier (op-amp) is a high-gain DC-coupled differential amplifier that uses external feedback to set closed-loop gain, filter response, or mathematical function. Rail-to-rail input/output (RRIO) op-amps extend usable signal swing to both supply rails, which is critical in low-voltage single-supply systems where headroom is scarce. The ADA4096-4 belongs to the precision amplifier category within the broader amplifier IC family, which itself sits inside the power-management and signal-conditioning semiconductor hierarchy.
Key features include a unity-gain bandwidth of approximately 500 kHz, a low offset voltage, integrated input overvoltage protection up to 32 V beyond either rail, no phase reversal when the input is driven past the rails, and shutdown behavior suited to battery-powered monitoring. The device operates over the -40 C to +125 C automotive/industrial temperature range and the LFCSP-WQ-16 (3x3) package provides a compact footprint with a thermal pad for improved dissipation in dense PCB layouts.
The ADA4096-4 uses a bipolar-input CMOS- output architecture that achieves the 60 uA-per-amplifier quiescent budget while maintaining the overvoltage robustness traditionally associated with bipolar parts. This combination suits portable battery monitors, where the supply rail can swing widely during charge/discharge cycles and where sensor inputs can see transients from the battery pack or cabling.
Typical applications include battery voltage and current monitoring in 12 V/24 V lead-acid and lithium packs, portable instrumentation, industrial process-control analog front-ends, transducer signal conditioning, and power-supply supervisory circuits. The micropower draw also makes it attractive for always-on IoT sensor nodes that must run for years from a primary cell.
When designing with this part, add a small (1 nF to 10 nF) ceramic bypass capacitor on each supply pin placed as close to the IC as possible, and solder the exposed thermal pad to a copper pour to keep junction temperature within limits in high ambient environments. Designers should also leave adequate input series resistance when the source can produce transients beyond 32 V above the rail.
This page synthesizes distributor pricing, drop-in alternatives sourced from the ADI family and competitor data, and practical design notes that go beyond the manufacturer datasheet.
Drop-in alternatives for ADA4096-4ACPZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADA4096-4ACPZ (same form factor and footprint) — differing in Amplifier Type, Input Overvoltage Protection, Package, Phase Reversal.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADA4096-4ACPZ-R7
✅ Drop-In✓ In Stock
$2.25 / Unit
View Datasheet →ADA4096-4ACPZ-RL
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4096-2ACPZ-R7
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4091-4ACPZ-RL
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4096-4ACPZ Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 (Quad) |
| Amplifier Type | General Purpose / Precision |
| Supply Voltage Range (Single) | 3 V to 30 V |
| Quiescent Current per Amplifier (typ) | 60 uA |
| Input Overvoltage Protection | 32 V above and below supply rails |
| Phase Reversal | None - no phase reversal |
| Input Common Mode Range | Rail-to-Rail |
| Output Swing | Rail-to-Rail |
| Operating Temperature Range | -40 C to +125 C |
| Package | 16-LFCSP-WQ (3x3 mm) with exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
ADA4096-4ACPZ Pin Configuration
| Pin 1 | V+ — Positive supply voltage |
| Pin 2 | OUTB — Output of amplifier B |
| Pin 3 | INB- — Inverting input of amplifier B |
| Pin 4 | INA- — Inverting input of amplifier A |
| Pin 5 | INA+ — Non-inverting input of amplifier A |
| Pin 6 | IND+ — Non-inverting input of amplifier D |
| Pin 7 | INC+ — Non-inverting input of amplifier C |
| Pin 8 | V- — Negative supply voltage / ground |
| Pin 9 | IND- — Inverting input of amplifier D |
| Pin 10 | OUTD — Output of amplifier D |
| Pin 11 | NC — Not connected (per datasheet) |
| Pin 12 | OUTC — Output of amplifier C |
| Pin 13 | INC- — Inverting input of amplifier C |
| Pin 14 | INB+ — Non-inverting input of amplifier B |
| Pin 15 | OUTA — Output of amplifier A |
| Pin 16 | NC — Not connected (per datasheet) |
Typical Applications
ADA4096-4ACPZ is suitable for 6 applications: Battery Voltage and Current Monitoring, Portable Industrial Sensor Signal Conditioning, Process Control Analog Front-End, Transducer Signal Conditioning, Power Supply Supervisory Circuit, Always-On IoT Sensor Node.
Battery Voltage and Current Monitoring
The ADA4096-4ACPZ fits 12 V/24 V lead-acid and multi-cell lithium battery monitoring because each amplifier draws only 60 uA from the 3 V to 30 V supply rail, allowing always-on current sensing without draining the pack. Its 32 V input overvoltage protection lets shunt-amplifier inputs survive load-dump transients on automotive 24 V buses with no external clamping. Place one channel as a difference amplifier across the current shunt, another as a scaled divider buffer for pack voltage, and a third as a temperature-sense amplifier for an NTC. The fourth channel can drive a low-side warning transistor. Because the part is rail-to-rail input/output, the same op-amp works at 3.3 V for a battery-management MCU reference and at 24 V for industrial monitoring.
Recommended
Portable Industrial Sensor Signal Conditioning
For portable industrial sensor signal conditioning, the ADA4096-4ACPZ delivers four channels in a 3x3 mm LFCSP-WQ, saving PCB area versus four discrete op-amps in portable test instruments and field transmitters. Each amplifier accepts input voltages up to 32 V above and below the supply rails without phase reversal, which is critical when interfacing to 24 V transducer outputs and 4-20 mA loops from a 5 V or 3.3 V rail. Typical circuits include bridge-amplifier front-ends for strain-gauge load cells, RTD or thermocouple pre-amplifiers, and unity-gain buffers for DAC outputs to actuator drivers. The 60 uA per-amplifier quiescent current also keeps total analog section consumption below 250 uA, ideal for handheld battery-powered multimeters and loop calibrators.
Recommended
Process Control Analog Front-End
The ADA4096-4ACPZ suits process-control analog front-ends in 4-20 mA loop-powered transmitters and PLC analog input modules because its 3 V to 30 V supply range directly accommodates 24 V field rails. With 32 V input overvoltage tolerance, each amplifier can connect to a wide range of field wiring without external protection, simplifying PCB layout and reducing BOM count. The quad topology lets one IC implement input buffer, level shifter, filter amplifier, and voltage reference buffer for a single analog channel - or a complete 4-channel multiplexed input module in a 3x3 mm outline. The exposed thermal pad of the LFCSP-WQ package also helps dissipate heat when channels are continuously driven at high common-mode voltages.
Recommended
Transducer Signal Conditioning
For transducer signal conditioning in pressure, flow, and level transmitters, the ADA4096-4ACPZ provides a micropower quad front-end that can buffer a Wheatstone bridge, scale the output, drive an excitation reference, and feed a 4-20 mA current loop modulator - all from a single 3x3 mm package. The 60 uA per-channel quiescent current is compatible with loop-powered 4-20 mA devices that have only 3.5 mA total budget, while the rail-to-rail output lets the bridge amplifier use the full dynamic range. The integrated input overvoltage protection prevents damage during installation wiring faults, when sensors can see transient voltages from the process line. Designers typically use one channel for bridge excitation buffer, two channels for differential bridge amplification, and the fourth for output current loop driver.
Recommended
Power Supply Supervisory Circuit
The ADA4096-4ACPZ works as a power-supply supervisory analog building block because each channel can monitor up to 30 V supply rails with no external resistor dividers required at moderate ratios. The rail-to-rail input lets the op-amp directly sense voltages down to ground without level shifting, simplifying under-voltage and over-voltage window comparator designs. With four channels in one LFCSP-WQ, a single IC can monitor +3.3 V, +5 V, +12 V, and +24 V rails simultaneously, generating a combined power-good signal for a supervisory MCU or FPGA. The 32 V input tolerance also protects the part during hot-plug events and supply transients common in server and telecom equipment.
Recommended
Always-On IoT Sensor Node
For always-on IoT sensor nodes that must run for years from a primary cell, the ADA4096-4ACPZ offers four micropower amplifiers at 60 uA each, totaling only 240 uA of quiescent current even when all channels are active. The 3 V to 30 V supply range accommodates both 3.6 V lithium thionyl chloride primary cells and energy-harvested rails from solar or thermoelectric sources. The rail-to-rail input/output allows direct connection to low-voltage MEMS sensors, while the 32 V input overvoltage protection lets the node survive surge events on long sensor cable runs. Each amplifier can buffer a separate sensor - temperature, humidity, pressure, and gas - before feeding a low-power ADC, enabling a complete multi-sensor node in a tiny 3x3 mm footprint.
Recommended
Recommended Products Summary
Engineering reference data for ADA4096-4ACPZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADA4096-4ACPZ-R7 | ADA4096-4ACPZ-RL | ADA4096-2ACPZ-R7 | ADA4091-4ACPZ-RL |
|---|---|---|---|---|---|
| Package | 16-LFCSP-WQ (3x3) | 16-LFCSP-WQ (3x3) - same | 16-LFCSP-WQ (3x3) - same | 8-LFCSP | 16-LFCSP-WQ (3x3) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Number of Channels | 4 (Quad) | 4 (Quad) | 4 (Quad) | 2 (Dual) | 4 (Quad) |
| Rail-to-Rail I/O | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated 32 V input overvoltage protection on every channel (vs ADA4091-4ACPZ-RL)
- Micropower 60 uA per amplifier in a 3x3 mm quad LFCSP-WQ (vs ADA4096-2ACPZ-R7)
- Same 16-LFCSP-WQ (3x3) footprint across -R7 and -RL variants (vs ADA4096-4ACPZ-R7)
Design Notes
Place a 100 nF ceramic bypass capacitor on each supply pin (V+ at pin 1, V- at pin 8) within 2 mm of the LFCSP-WQ pads, and add a 1 uF to 10 uF bulk capacitor near the device for low-frequency decoupling. The exposed thermal pad on the underside of the 16-LFCSP-WQ must be soldered to a PCB copper pour that is connected to V- or a quiet analog ground plane to keep junction temperature within the -40 C to +125 C operating range.
Do not omit the input series resistance when the input signal source can exceed 32 V above V+ or below V-, even though the part is rated to survive this without damage - series resistance of 1 kohm to 10 kohm limits input current during sustained overvoltage events. Designers should also avoid back-to-back protection diodes across the inputs, since the integrated OVP network is already designed to handle 32 V transients and external diodes can leak and shift offset.
When using the ADA4096-4ACPZ as a difference amplifier for bridge sensors, match the source impedances at the two inputs within 1 percent to maintain good common-mode rejection; mismatched impedances convert common-mode noise into differential error at the output. Place the gain-setting resistors close to the inverting pins to minimize stray capacitance, which can introduce phase margin loss at gains above 10. For 4-20 mA loop interfaces, add an RC low-pass filter (10 kohm and 100 pF, for example) at the output to suppress RF pickup from nearby industrial cabling.
Compliance Information
RoHS and REACH compliant per Analog Devices product page. AEC-Q100 qualified by ADI for automotive applications per the ADA4096-2/ADA4096-4 datasheet family. Lead-free and halogen-free per package materials declaration.
