Texas Instruments TLE2237CDW

Overview

TLE2237CDW from Texas Instruments is a dual precision operational amplifier optimized for low-noise, high-speed signal conditioning in instrumentation and data acquisition systems. It delivers 100 µV typical input offset voltage, 4–5 V/µs slew rate, 35–50 MHz gain-bandwidth product, and 2.5–3.3 nV/√Hz input voltage noise at 1 kHz and 10 Hz respectively, operating across ±4 V to ±19 V supplies with 0°C to 70°C temperature range.

For engineers reviewing the TLE2237CDW datasheet, TLE2237CDW pinout, TLE2237CDW application, or TLE2237CDW equivalent, key selection criteria include its Excalibur-process-enhanced DC precision (115 dB CMRR, 120 dB PSRR), fast settling without overshoot, saturation recovery circuitry, and compatibility with high-impedance sensor interfaces requiring minimal drift and wide dynamic range.

Technical Context

The TLE2237CDW integrates two independent high-performance op-amps on a single die using TI's Excalibur bipolar process, enabling simultaneous high AC bandwidth and low DC error. Its architecture features matched transistor pairs for low VIO drift (0.4 µV/°C), composite compensation for stable unity-gain operation, and internal saturation recovery to minimize recovery time after overdrive.

It supports rail-to-rail output swing into 2 kΩ loads (±11 V), maintains >95 dB common-mode rejection up to 70°C, and achieves phase margin of 40° with 100 pF capacitive load - making it suitable for closed-loop transimpedance amplifiers, active filters, and precision ADC driver stages where stability and noise floor are critical.

Key Specifications

Pinout & Package

Package: 16-pin small-outline wide-body (SOIC-W), surface-mount, RoHS-compliant, 7.5 mm body width, 1.27 mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual precision op-amp applications.

Compared with OPA2227UA and AD822ARZ, the TLE2237CDW uniquely balances high-speed precision (35–50 MHz GBP, 4–5 V/µs) with Excalibur-grade DC stability (100 µV VIO, 0.4 µV/°C drift), making it optimal for wideband sensor signal chains where both fidelity and accuracy must coexist.

Availability

TLE2237CDW is available at Aetrix Electronics and suitable for precision instrumentation, medical diagnostics, and industrial data acquisition systems requiring stable component supply, long-term calibration integrity, and guaranteed commercial-temperature performance.

Supply support for TLE2237CDW 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 expertise in precision op-amp design and manufacturing.

The TLE2237CDW belongs to TI's Excalibur precision op-amp family, engineered specifically for high-fidelity signal conditioning in measurement systems where low noise, low drift, and high bandwidth must coexist without compromise.

FAQ

What is the maximum supply voltage rating for the TLE2237CDW?

The TLE2237CDW supports absolute maximum supply voltages of ±19 V, with recommended operating range from ±4 V to ±19 V. Operation beyond ±19 V risks permanent damage. At ±15 V nominal supply, it delivers full specified performance including 4–5 V/µs slew rate and 35–50 MHz gain-bandwidth product - critical for maintaining fidelity in high-dynamic-range applications.

Does the TLE2237CDW require external compensation for unity-gain stability?

No, the TLE2237CDW is internally compensated for unity-gain stability, with guaranteed 40° phase margin when driving a 100 pF capacitive load. This eliminates need for external compensation networks in most configurations, simplifying layout and improving reliability in sensitive analog signal paths where parasitic capacitance can degrade stability.

How does the TLE2237CDW's input offset voltage drift compare to standard precision op-amps?

The TLE2237CDW exhibits 0.4 µV/°C typical input offset voltage drift over 0°C to 70°C - significantly lower than many general-purpose precision op-amps (often 1–2 µV/°C). This Excalibur-process optimization ensures <28 µV total drift across full temperature range, enabling high-accuracy measurements in uncontrolled thermal environments without frequent recalibration.

Can the TLE2237CDW drive heavy capacitive loads like ADC inputs directly?

The TLE2237CDW is not optimized for direct heavy capacitive loading (>100 pF); its 40° phase margin is specified with 100 pF. For ADC drivers, use a series resistor (e.g., 20–50 Ω) between TLE2237CDW output and ADC input capacitor to isolate reactive load and preserve stability - this maintains settling time <500 ns to 0.1% for 10 V steps while avoiding oscillation.

Is the TLE2237CDW pin-compatible with other devices in the TLE22x7 family?

Yes, the TLE2237CDW shares identical 16-pin SOIC-W pinout with TLE2227CDW, TLE2227CP, and TLE2237CP - all variants use the same DW package footprint and terminal assignment. This allows drop-in replacement within the same package type, though electrical differences (e.g., GBP, slew rate) must be verified per application to ensure functional equivalence.