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Texas Instruments TLE2662IDW
- Part No.:
- TLE2662IDW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
TLE2662IDW.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,300
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Product details
Overview
TLE2662IDW from Texas Instruments is a dual µPower JFET-input operational amplifier with integrated switched-capacitor voltage converter, enabling true rail-to-rail input operation and negative supply generation (up to –5 V at 100 mA) from a single 3.5–15 V input. It delivers ±25 mA output drive, 2.2–3.4 V/µs slew rate, and 1.8–2 MHz unity-gain bandwidth for low-noise signal conditioning in single-supply industrial sensor interfaces.
For engineers reviewing the TLE2662IDW datasheet, TLE2662IDW pinout, TLE2662IDW application, or TLE2662IDW equivalent, key selection criteria include its dual op-amp + SC converter co-integration, shutdown-controlled SC block (FB/SD), on-chip 2.5-V reference (SCREF), and 16-pin SOIC (DW) package with verified pinout for single-supply precision analog front-ends.
Technical Context
The TLE2662IDW integrates two independent JFET-input op-amps and a synchronized 15–35 kHz switched-capacitor voltage inverter/regulator. The SC block uses external CAP+ and CAP– capacitors to generate VCC–, which serves as both op-amp negative rail and external SCOUT power source up to 100 mA.
Its FB/SD pin disables the SC section while drawing <150 µA, preserving ultra-low quiescent current (560–720 µA total) in standby. The SCREF pin provides a 2.25–2.75 V reference usable for external regulation or ADC reference, and OSC allows synchronization or frequency tuning via external capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply range | 3.5 V to 15 V single supply - enables direct operation from common industrial rails without split supplies. |
| Input offset voltage | 0.9–6.3 mV - supports precision DC-coupled amplification of low-level sensor signals. |
| Slew rate | 2.2–3.4 V/µs - sufficient for settling 10-bit signals within 10 µs at 0.01% accuracy. |
| Unity-gain bandwidth | 1.3–2 MHz - allows stable closed-loop gain ≥10 at audio and control-loop frequencies. |
| SCOUT output | –4.25 to –5.2 V at 100 mA - powers external circuitry (e.g., ADC bias, level-shifting stages) from same input rail. |
| Input bias current | 3–5 pA (typ) - preserves high-impedance source integrity in pH, photodiode, or piezoelectric sensor interfaces. |
| Shutdown current | 100–150 µA - reduces system standby power by >95% vs active mode. |
Pinout & Package
The TLE2662IDW is housed in a 16-pin wide-body SOIC (DW) package, surface-mount compatible, available taped and reeled (TLE2662IDWR).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT, 2OUT | Amplifier output | Drive 100-Ω loads to ±2.5 V from 5-V rail; swing below ground while sinking >25 mA. |
| 1IN+, 1IN–, 2IN+, 2IN– | Amplifier input | JFET-input stage with rail-to-rail common-mode range (e.g., –1.6 V to +4 V at ±5 V supply). |
| VCC+, VCC– | Op-amp supply rails | VCC– is generated internally by SC block; VCC+ connects to main input supply (3.5–15 V). |
| SCOUT | Switched-capacitor output | Regulated negative supply output (–4.25 to –5.2 V), capable of sourcing up to 100 mA for external loads. |
| SCREF | Reference output | 2.25–2.75 V precision reference for external regulators or ADC references. |
| OSC | Oscillator control | Accepts external clock sync or sets internal oscillator frequency (15–35 kHz) via capacitor. |
| FB/SD | Feedback/shutdown | Pull low to disable SC block; draws <150 µA in shutdown while op-amps remain functional if biased. |
| CAP+, CAP–, SCIN, GND | SC network terminals | Interface external flying and reservoir capacitors to configure inverter/regulator topology per Figure 63. |
Key Features
| Feature | Design Value |
|---|---|
| Dual JFET-input op-amps | 3–5 pA input bias current and 10¹² Ω input resistance preserve signal integrity in high-Z sensor circuits. |
| Integrated SC voltage converter | Generates regulated negative rail (–4.25 to –5.2 V) without inductors, enabling true bipolar operation from single supply. |
| Rail-to-rail input with extended range | Common-mode input extends beyond VCC– (to –12 V at ±15 V supply), allowing ground-referenced inputs in single-supply systems. |
| On-chip 2.5-V reference | SCREF pin delivers stable 2.25–2.75 V reference for external DACs, ADCs, or precision comparators. |
| Shutdown control | FB/SD pin reduces SC block supply current to <150 µA, enabling low-power sleep modes without PCB layout changes. |
Applications
| Industrial Sensor Signal Conditioning | Single-Supply Data Acquisition Front-End |
|---|---|
Use Scenario: Amplifying low-level outputs from strain gauges, RTDs, or thermocouples in PLC analog input modules operating from 5-V or 12-V rails. IC Role / Device Role / Timing Role: Dual op-amp configures instrumentation amplifier and filter; SC block generates clean negative rail for bipolar signal swing and ADC reference. Use Value: Eliminates need for external charge pumps or isolated DC/DC converters, reducing BOM count and board area by >30%. | Use Scenario: Driving SAR ADCs (e.g., ADS8860) requiring ±2.5-V input range and precise 2.5-V reference in battery-powered portable meters. IC Role / Device Role / Timing Role: One op-amp buffers sensor signal; second drives ADC input; SCREF supplies ADC reference; SCOUT powers ADC analog section. Use Value: Achieves 16-bit effective resolution with <1 LSB INL drift over temperature due to matched on-die reference and supply rails. |
| Low-Power Process Monitoring | 4–20 mA Loop-Powered Transmitter |
Use Scenario: Signal conditioning in loop-powered field devices where supply headroom is limited to 3.5–5 V and quiescent current must be <1 mA. IC Role / Device Role / Timing Role: Op-amps condition sensor output; SC block disabled via FB/SD during sleep; only 265 µA total supply current in shutdown. Use Value: Extends battery life in wireless sensor nodes by enabling microamp-level deep-sleep states without losing analog functionality. | Use Scenario: Voltage-to-current conversion and sensor excitation in 4–20 mA transmitters powered from 12–24 V loop with tight thermal constraints. IC Role / Device Role / Timing Role: One op-amp implements Howland current source; second conditions feedback; SCOUT powers precision current-sense amplifier. Use Value: Maintains 0.1% current accuracy over –40°C to +85°C using on-chip matched components and low-drift VIO (6.3 mV max). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op-amp + integrated power-conversion applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC6482IMX/NOPB | Dual CMOS rail-to-rail op-amp only; no integrated SC converter or SCREF output. | Requires external negative supply or charge pump IC (e.g., ICL7660) for bipolar operation. | Select when only amplification is needed and board space permits discrete power conversion. |
| MAX44267ASA+ | Dual op-amp with integrated precision 2.5-V reference and shutdown, but no SC voltage converter. | Lacks SCOUT capability; cannot generate negative supply - limits use to unipolar signal chains. | Prefer for reference-sensitive applications (e.g., precision DAC buffers) where negative rail is supplied externally. |
Compared with LMC6482IMX/NOPB and MAX44267ASA+, the TLE2662IDW uniquely integrates SC-based negative rail generation and SCREF in one 16-pin SOIC, eliminating two ICs and four passive components required by alternatives - critical for space-constrained industrial modules.
Availability
TLE2662IDW is available at Aetrix Electronics and suitable for industrial sensor interfaces, single-supply data acquisition systems, and low-power process monitoring equipment requiring stable component supply across extended temperature ranges.
Supply support for TLE2662IDW 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of heritage in precision op-amps and power management ICs.
The TLE2662IDW belongs to TI's legacy µPower precision op-amp family, designed specifically for industrial signal conditioning where single-supply operation, low power, and integrated auxiliary power generation are mandatory.
FAQ
What is the maximum load current supported by the SCOUT output of the TLE2662IDW?
The TLE2662IDW SCOUT output delivers up to 100 mA of continuous current at –4.25 to –5.2 V (depending on SCIN voltage and load), as specified in the Switched-Capacitor Section electrical characteristics table. At 100 mA, voltage loss is 1.1–1.6 V relative to SCIN, and output resistance is 10–15 Ω. For reliable operation, maintain SCIN ≥5 V and use recommended 100-µF tantalum output capacitance.
Can the TLE2662IDW operate with a 3.3-V supply?
No - the TLE2662IDW minimum recommended supply voltage is 3.5 V per the "Recommended Operating Conditions" table. Operation at 3.3 V falls outside specification and may result in degraded SC converter regulation, reduced output drive, or failure to meet rail-to-rail input performance. Use only within 3.5 V to 15 V range.
How does the FB/SD pin affect the op-amps when the SC block is disabled?
When FB/SD is pulled low, only the switched-capacitor block shuts down (drawing <150 µA); the dual op-amps remain fully functional if VCC+ and externally supplied VCC– (or generated VCC– from prior SC operation) are present. However, sustained op-amp operation without active SC block requires an external negative rail - the TLE2662IDW does not retain VCC– charge indefinitely.
What is the purpose of the SCREF pin on the TLE2662IDW?
The SCREF pin provides a buffered 2.25–2.75 V reference voltage derived from the internal bandgap, usable for external ADC references, DAC biasing, or comparator thresholds. It sources up to 60 µA and exhibits <0.5 V drift over –40°C to +85°C. Unlike the SCOUT output, SCREF is not a power rail - it is a precision reference node requiring minimal load.
Is the TLE2662IDW pin-compatible with other members of the TLE266x family?
Yes - the TLE2662IDW shares identical pinout and footprint with TLE2661IDW (single op-amp variant) and TLE2664IDW (quad op-amp variant), as confirmed by TI SLOS118B datasheet Figure 1 (DW package top view). All three use the same 16-pin SOIC layout, enabling scalable design reuse across channel-count requirements.
TLE2662IDW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 3.4V/µs
- Gain Bandwidth Product:
- 2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 4 pA
- Voltage - Input Offset:
- 900 µV
- Current - Supply:
- 625µA (x2 Channels)
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 3.5 V
- Voltage - Supply Span (Max):
- 15 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
TLE2662IDW FAQ
1.How can I place an order for TLE2662IDW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2662IDW 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 TLE2662IDW reliable?
The price and inventory of TLE2662IDW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2662IDW is usually 5 days.
3.What payment methods are accepted for TLE2662IDW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2662IDW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2662IDW?
TLE2662IDW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2662IDW 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 TLE2662IDW?
For technical support, including TLE2662IDW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2662IDW requirements.
6.How does Aetrix verify that TLE2662IDW is sourced from the original manufacturer or authorized distributors?
All TLE2662IDW 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 TLE2662IDW meets industry standards.
7.What is the process for return or replacement of TLE2662IDW?
All TLE2662IDW units undergo pre-shipment inspection (PSI). If there is an issue with TLE2662IDW, 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 TLE2662IDW part is unused and in its original packaging.
Return procedure for TLE2662IDW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2662IDW Tags
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