TLV2452AIDGKR - Dual 23uA Rail-to-Rail Op Amp | TI
MPN: TLV2452AIDGKR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.25 | $1.25 |
| 10 | $1.12 | $11.20 |
| 100 | $0.95 | $95.00 |
| 500 | $0.82 | $410.00 |
| 1,000 | $0.74 | $740.00 |
Drop-in alternatives for TLV2452AIDGKR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TLV2452IDGKR
✅ Drop-In📋 Reference alternative (not in catalog)
TLV2452AIDGKT
✅ Drop-In📋 Reference alternative (not in catalog)
TLV2452AIDGKR Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Supply Voltage Range (Single) | 2.7 V to 6.0 V |
| Supply Voltage Range (Dual) | ±1.35 V to ±3.0 V |
| Quiescent Current per Channel | 23 uA |
| Gain-Bandwidth Product | 220 kHz |
| Slew Rate | 0.11 V/us |
| Input Offset Voltage (Max) | 1.5 mV |
| Input Bias Current (Typical) | 1 pA |
| Input Common-Mode Voltage Range | Rail-to-Rail |
| Output Voltage Swing | Rail-to-Rail |
| Operating Temperature Range | -40C to +125C |
| Package | MSOP-8 (DGK) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| ESD Protection | 2 kV HBM |
TLV2452AIDGKR Pin Configuration
| Pin 1 | 1OUT — Output of amplifier 1 |
| Pin 2 | 1IN- — Inverting input of amplifier 1 |
| Pin 3 | 1IN+ — Non-inverting input of amplifier 1 |
| Pin 4 | V- — Negative supply (ground in single-supply) |
| Pin 5 | 2IN+ — Non-inverting input of amplifier 2 |
| Pin 6 | 2IN- — Inverting input of amplifier 2 |
| Pin 7 | 2OUT — Output of amplifier 2 |
| Pin 8 | V+ — Positive supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TLV2452AIDGKR is suitable for 6 applications: Battery-Powered Sensor Interface, Portable Medical Devices, Photodiode Amplifier, Low-Power Active Filters, IoT Sensor Nodes, Portable Instrumentation.
Battery-Powered Sensor Interface
The TLV2452AIDGKR's 23uA quiescent current per channel and rail-to-rail input/output make it ideal for amplifying sensor signals in battery-powered devices. Its low input bias current (1pA) preserves the integrity of high-impedance sensors like pH probes or photodiodes. The wide supply range (2.7V to 6V) allows direct operation from a single lithium-ion cell or two alkaline cells. In a typical configuration, the op amp buffers the sensor output and drives an ADC, with the rail-to-rail output ensuring full-scale utilization of the ADC's input range. The low power consumption extends battery life, making it suitable for continuous monitoring in IoT sensors and wearable health devices.
Recommended
Portable Medical Devices
In portable medical devices such as glucose monitors and pulse oximeters, the TLV2452AIDGKR provides low-power signal conditioning for biosensors. Its 23uA quiescent current is critical for battery-operated devices that must operate for months on a single coin cell. The rail-to-rail output allows direct interfacing to low-voltage ADCs, while the low input bias current minimizes loading on high-impedance electrodes. The device's small MSOP-8 package saves space in compact medical wearables. For example, in a photoplethysmography (PPG) circuit, the op amp amplifies the photodiode signal before ADC conversion, with the low noise and high input impedance ensuring accurate heart-rate monitoring. The extended temperature range (-40°C to +125°C) ensures reliable operation in clinical environments.
Recommended
Photodiode Amplifier
The TLV2452AIDGKR is well-suited for photodiode amplifier circuits due to its low input bias current (1pA) and rail-to-rail output. In a transimpedance amplifier configuration, the op amp converts the photodiode current to a voltage, with the low bias current minimizing dark current errors. The 220kHz gain-bandwidth product supports moderate-speed optical sensing, such as ambient light detection or barcode scanning. The rail-to-rail output allows the amplifier to swing close to the supply rails, maximizing dynamic range for varying light levels. The low quiescent current is advantageous in battery-powered optical sensors, such as those in smart home devices. For higher bandwidth, consider the OPA381, but for low-power applications, the TLV2452 is an excellent choice.
Recommended
Low-Power Active Filters
The TLV2452AIDGKR can be used to implement low-power active filters, such as Sallen-Key low-pass or high-pass filters, for signal conditioning in portable audio or sensor applications. Its 220kHz gain-bandwidth product is sufficient for audio-band filtering (up to 20kHz) and low-frequency sensor signals. The rail-to-rail output ensures the filter can drive ADC inputs without clipping. The low quiescent current (23uA per channel) makes it ideal for always-on filter stages in battery-powered devices. For example, a second-order low-pass filter with a cutoff frequency of 10kHz can be built using two TLV2452 amplifiers, consuming only 46uA total. The small MSOP-8 package allows compact filter designs. For higher-order filters, multiple TLV2452 channels can be cascaded.
Recommended
IoT Sensor Nodes
In IoT sensor nodes, the TLV2452AIDGKR provides low-power signal conditioning for various sensors, including temperature, humidity, and gas sensors. Its 23uA quiescent current per channel is crucial for battery-powered nodes that need to operate for years. The rail-to-rail input/output allows direct interfacing to low-voltage microcontrollers and ADCs. The wide supply range (2.7V to 6V) accommodates different battery chemistries. The device's small MSOP-8 package is ideal for compact PCB designs in smart home sensors and industrial wireless monitors. For example, in a temperature monitoring node, the op amp buffers the thermistor output and drives an ADC, with the low power consumption enabling long battery life. The extended temperature range ensures reliable operation in outdoor environments.
Recommended
Portable Instrumentation
The TLV2452AIDGKR is used in portable instrumentation such as handheld multimeters and data loggers. Its low power consumption (23uA per channel) extends battery life, while the rail-to-rail output ensures accurate measurement of signals near the supply rails. The low input offset voltage (1.5mV max) provides reasonable accuracy for general-purpose measurements. The device's small MSOP-8 package allows compact instrument designs. In a typical data logger, the op amp conditions sensor signals before ADC conversion, with the low input bias current minimizing errors from high-impedance sources. The wide supply range (2.7V to 6V) allows operation from a 9V battery with a regulator. For higher precision, consider the OPA2333, but for low-power portable instruments, the TLV2452 is a cost-effective choice.
Recommended
Recommended Products Summary
Engineering reference data for TLV2452AIDGKR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLV2452IDGKR | TLV2452AIDGKT | TLV2452IDR |
|---|---|---|---|---|
| Package | MSOP-8 (DGK) | MSOP-8 (DGK) - same | MSOP-8 (DGK) - same | SOIC-8 (D) - different |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 2 | 2 | 2 | 2 |
| Supply Voltage Range | 2.7V to 6.0V | 2.7V to 6.0V | 2.7V to 6.0V | 2.7V to 6.0V |
| Quiescent Current per Channel | 23 uA | 23 uA | 23 uA | 23 uA |
| Gain-Bandwidth Product | 220 kHz | 220 kHz | 220 kHz | 220 kHz |
| Input Offset Voltage (Max) | 1.5 mV | 1.5 mV | 1.5 mV | 1.5 mV |
| Rail-to-Rail | Yes | Yes | Yes | Yes |
Key Differentiators
- Ultra-low quiescent current of 23uA per channel (vs LM2904DR)
- Rail-to-rail input and output (vs LM358DR)
- Low input bias current of 1pA (vs LM2904DR)
Design Notes
The TLV2452AIDGKR operates from 2.7V to 6.0V single supply. For battery-powered designs, ensure the supply voltage remains within this range even under load. Use a low-dropout regulator (LDO) like the TPS7A1601DGNR to provide a stable 3.3V rail. Decouple the V+ pin with a 0.1uF ceramic capacitor placed as close as possible to the pin to minimize power supply noise.
For optimal performance, place the TLV2452AIDGKR on a PCB with a solid ground plane. Keep the feedback network components close to the op amp to minimize parasitic capacitance and inductance. Use short traces for the input and output connections. The MSOP-8 package has a thermal pad (exposed pad) that should be soldered to the PCB for improved thermal performance, though power dissipation is low.
Avoid driving the inputs beyond the absolute maximum ratings, which could cause latch-up. The input common-mode range includes both rails, but do not exceed V+ + 0.3V or V- - 0.3V. For single-supply operation, ensure the input signals are within the common-mode range. Also, avoid capacitive loads greater than 100pF directly on the output, as this can cause instability; use a series resistor if needed.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified. Halogen-free status not specified in provided data.
