TP1562AL1-TSR Datasheet - Low-Voltage Specs

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TP1562AL1-TSR Datasheet: Current Low-Voltage Specs & Data

2026-02-07 11:16:14

The TP1562AL1-TSR datasheet consolidates key measured facts useful for low-voltage system design: specified supply range 2.5–6.0 V, typical quiescent current ≈600 µA per channel, gain–bandwidth ~6 MHz, rail‑to‑rail I/O (RRIO) with low offset and tight output headroom. This article translates those datasheet numbers into engineer‑ready test points, measurement conditions, and practical layout/test guidance for battery‑powered and single‑supply designs.

All presented values reference the device datasheet test conditions (VCC, RL, TA) and emphasize reproducible bench measurements: min/typ/max readings, temperature sensitivity, and expected variance at low supply voltages.

Product Overview & Design Context

TP1562AL1-TSR Datasheet: Current Low-Voltage Specs & Data

Purpose and Target Use Cases

The part is intended for low‑voltage portable signal conditioning, single‑supply op‑amp tasks, and RRIO applications where minimal supply headroom and low quiescent current are prioritized. Typical applications include:

• Battery‑powered sensors — low Icc preserves battery life while providing RRIO buffering.
• Portable data acquisition front ends — single‑supply convenience and low offset improve measurement accuracy.
• Reference buffer and level shifting — RRIO simplifies rail‑sensing and near‑rail measurements.

These use cases favor small supply rails, modest bandwidth needs, and tight layout practices to minimize noise and leakage.

Key Electrical Summary Table

For quick reference, the following table summarizes the TP1562AL1-TSR datasheet specifications under primary test conditions.

Parameter	Test Conditions	Min	Typ	Max
Supply range (VCC)	—	2.5 V	—	6.0 V
Quiescent current	VCC=Vtyp, TA=25°C	—	≈600 µA	—
Input offset voltage	VCC=Vtyp, TA=25°C	—	few mV	tens of mV
Output swing	RL=10 kΩ to VCC/2	VCC–0.05 V	—	—
GBW	Closed‑loop test	—	≈6 MHz	—
Slew rate	Typical	—	tens V/µs	—

DC Electrical Characteristics

When extracting DC data, specify test conditions clearly: VCC values (2.5, 3.3, 5.0, 6.0 V), TA = 25°C and extended ranges, RL values (10 kΩ, 2 kΩ), and input common‑mode test points near rails. Highlight quiescent current (~600 µA/channel typical), input offset, and bias currents.

Precision Margin Analysis (Typical)

AC Performance Metrics

GBW ≈6 MHz (closed‑loop unity gain), open‑loop gain at low frequencies, and phase margin notes. Recommend recreating gain vs frequency and step response (slew) plots under the same RL and supply conditions to detect stability issues.

Stability & Frequency Response

TECH

Low-Voltage Specs Deep-Dive

Behavior at Supply Extremes (2.5 V to 6.0 V)

This section analyzes low‑voltage specs across VCC. Plot supply current vs VCC to reveal any current rise near extremes; chart input offset drift vs VCC to identify margin for precision designs; and graph output swing headroom at VCC = 2.5 V and 6.0 V for RL = 10 kΩ and 2 kΩ. Use these traces to set pass/fail thresholds and expected bench tolerances when operating near the 2.5 V minimum.

Input/Output Limits and Common-Mode Guidance

RRIO behavior implies inputs are guaranteed close to both rails but with defined limits. Recommend measuring input common‑mode range explicitly and testing output swing under RL = 10 kΩ and 2 kΩ to quantify headroom. Define pass/fail: e.g., at VCC = 2.5 V expect at least 50–100 mV margin from rails into RL=10 kΩ.

Design & PCB Layout Tips

Powering and Decoupling

Place a 0.1 µF ceramic capacitor very close to the VCC pin and ground return, plus a 1 µF low‑ESR bulk nearby. This reduces supply impedance and avoids noise coupling.

Routing and Grounding

Adopt an analog star ground or stitched ground plane; route sensitive inputs away from digital switching. Use input guard traces for high‑impedance nodes.

Typical Application & Test Checklist

Example Circuits

Example A: Unity‑gain buffer (VCC = 2.5 V). Expected Icc ≈600 µA/channel, output swing within ~50–100 mV of rails into RL = 10 kΩ.

Example B: Inverting sensor amplifier (Gain = −10). Expect GBW tradeoff (bandwidth ≈600 kHz), offset amplified by gain.

Lab Test Checklist

1. Visual/Continuity Check

2. Power up & measure Icc

3. Verify Offset at Extremes

4. AC Sweep (GBW/Phase)

5. Step/Slew & Rail Test

Key Summary

! Supply range 2.5–6.0 V with typical quiescent current ≈600 µA/channel — verify Icc at intended VCC to confirm battery life targets.
! GBW around 6 MHz and RRIO I/O: verify output headroom under RL = 10 kΩ and 2 kΩ to avoid clipping.
! Layout is critical: 0.1 µF close to VCC pin and analog grounding minimize noise and stability issues.

Common Questions & Answers

What are the key TP1562AL1-TSR supply current expectations? ▼

Typical quiescent current is approximately 600 µA per channel under nominal conditions; designers should measure Icc at the target VCC and temperature to account for variation. Use a series ammeter or low‑loss shunt, and confirm current under no‑load and loaded output conditions to capture transient behavior.

How do low-voltage specs affect output swing on TP1562AL1-TSR? ▼

At the 2.5 V minimum, output swing is constrained by rail headroom and load. Expect the device to approach within tens to a few hundred millivolts of rails depending on RL; test with RL = 10 kΩ and 2 kΩ to quantify worst‑case clipping and verify pass/fail margins for the intended signal range.

Which tests are most important from the TP1562AL1-TSR datasheet when validating a design? ▼

First bench checks: Icc measurement, input offset vs VCC, AC sweep for GBW and phase margin, and step/slew response for transient behavior. Also perform rail‑clipping tests at the lowest supply to ensure RRIO meets application headroom requirements and that layout does not introduce extra degradation.

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