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STMicroelectronics TSB952IDT
- Part No.:
- TSB952IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSB952IDT.pdf
- Description:
- SO 08 .15 JEDEC
- Quantity:
- Payment:
- Shipping:
Inventory:2,464
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Product details
Overview
TSB952IDT from STMicroelectronics is a dual high-speed rail-to-rail output operational amplifier with 52 MHz gain bandwidth product, ±3 mV max input offset voltage at 25 °C, and operation across 4.5–36 V supply. It delivers 40 mA typical output current per channel at 36 V and supports automotive-grade temperature range (−40 to +125 °C) in DFN8 3×3 mm wettable flanks package. Used in precision power supply feedback loops and automotive sensor signal conditioning.
For engineers reviewing the TSB952IDT datasheet, TSB952IDT pinout, TSB952IDT application, or TSB952IDT equivalent, this page provides verified pin functions, real-world design meaning of key specs (e.g., 30 V/µs slew rate at 36 V, 120 dB channel separation), thermal derating guidance for DFN8 vs SO8, and validated alternatives for high-speed industrial and automotive amplification.
Technical Context
The TSB952IDT employs a proprietary high-slew, low-noise bipolar input stage optimized for unity-gain stability across its full 4.5–36 V supply range. Its input common-mode range extends to the negative rail (VCC−) but stops 1.5 V below VCC+, enabling ground-referenced sensing while maintaining CMRR >90 dB up to 125 °C.
It integrates EMI-hardened input structures with 4 kV HBM ESD rating and achieves 52 MHz GBP with only 3.3 mA/ch supply current at 36 V-delivering 15.8 MHz/mA efficiency. Phase margin remains ≥52° with 22 pF capacitive load, and overload recovery completes within 80 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 52 MHz typ. @ 36 V - enables stable closed-loop operation up to 10 MHz with gain ≥5, critical for fast power supply transient response. |
| Slew Rate | 30 V/µs typ. @ 36 V - supports <345 ns 0.01% settling for 2 V step, suitable for ADC driver and active filter stages. |
| Input Offset Voltage | ±3 mV max @ 25 °C - ensures ≤0.5% error in 0.6 V reference amplification without trimming. |
| Output Current | 40 mA typ. @ 36 V - drives 600 Ω loads to rail with <700 mV saturation voltage, sufficient for MOSFET gate driving. |
| Supply Voltage Range | 4.5 to 36 V - operates directly from 12 V automotive battery or 24 V industrial bus without LDO pre-regulation. |
| Operating Temperature | −40 to +125 °C - qualified per AEC-Q100 Grade 1, validated for under-hood engine control and battery management systems. |
| Channel Separation | 120 dB @ 1 kHz - prevents crosstalk between dual-channel functions like differential sensor readout and reference buffering. |
Pinout & Package
TSB952IDT is supplied in DFN8 3×3 mm wettable flanks package (pitch 0.5 mm), featuring an exposed thermal pad for enhanced heat dissipation in high-power-density automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Out1) | Channel 1 output | Rail-to-rail capable; sinks/sourses 40 mA; connects directly to ADC input or gate driver node. |
| 2 (In1−) | Channel 1 inverting input | Differential input node; accepts signals down to VCC−; requires series resistor ≤1 kΩ if driven beyond absolute max ratings. |
| 3 (In1+) | Channel 1 non-inverting input | High-impedance node (IIB ≤100 pA); used for reference voltage buffering or sensor interface. |
| 4 (VCC−) | Negative supply rail | Ground reference for dual-supply use or system GND in single-supply configurations. |
| 5 (VCC+) | Positive supply rail | Accepts 4.5–36 V; decoupling capacitor (100 nF) required within 2 mm for EMI immunity. |
| 6 (Out2) | Channel 2 output | Independent output; must be configured as unity-gain follower if unused to prevent oscillation. |
| 7 (In2−) | Channel 2 inverting input | Matches In1− characteristics; supports matched dual-path signal processing. |
| 8 (In2+) | Channel 2 non-inverting input | Matches In1+; enables simultaneous dual-channel instrumentation amplifier front-end. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 15 mV of rails @ 2 mA load - preserves dynamic range in low-voltage ADC interfaces (e.g., 3.3 V SAR converters). |
| EMI hardening | EMIRR >80 dB from 400 MHz–2.4 GHz - eliminates RF rectification-induced offset shifts in infotainment and radar subsystems. |
| Thermal robustness | RTH-JA = 40 °C/W (DFN8) - allows 36 V operation at +125 °C ambient when PCB copper area ≥200 mm² under exposed pad. |
| Unity-gain stability | Phase margin ≥52° with 22 pF load - eliminates need for external compensation in voltage follower or transimpedance configurations. |
| Low input bias current | 100 pA max @ 125 °C - minimizes voltage error across high-impedance sensor bridges (e.g., 100 kΩ strain gauges). |
Applications
| Automotive Battery Monitoring | Industrial DC-DC Feedback Loop |
|---|---|
|
Use Scenario: Real-time measurement of 12 V lead-acid and 48 V Li-ion battery cell voltages in BMS modules. IC Role / Device Role / Timing Role: Dual-channel difference amplifier conditioning shunt voltage and reference voltage before 16-bit sigma-delta ADC sampling. Use Value: 120 dB channel separation prevents cross-talk between high-side and low-side measurements; rail-to-rail output ensures full ADC input range utilization. |
Use Scenario: Error amplification in isolated 500 W telecom DC-DC converter with 36 V input and 12 V output. IC Role / Device Role / Timing Role: Compensator in Type III feedback network, shaping loop gain for >100 kHz crossover frequency. Use Value: 52 MHz GBP enables wide phase margin at target bandwidth; 30 V/µs slew rate avoids distortion during load-step transients. |
| Engine Coolant Temperature Sensor Interface | Motor Phase Current Sensing |
|
Use Scenario: Amplifying PT1000 RTD bridge output in automotive engine control units operating at −40 to +125 °C. IC Role / Device Role / Timing Role: Instrumentation front-end with matched dual channels for ratiometric reference and sensor leg amplification. Use Value: ±3.5 mV max offset drift over temperature ensures <0.5 °C measurement error without calibration; EMI hardening rejects ignition noise. |
Use Scenario: Isolated current sensing in 3-phase inverter drives for EV traction motors. IC Role / Device Role / Timing Role: High-speed current amplifier driving isolated gate driver inputs with <345 ns settling time. Use Value: 40 mA output current directly drives 1000 pF gate capacitance; 80 ns overload recovery prevents false fault triggering during short-circuit events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed rail-to-rail output op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB612IDT | Lower supply current (1.1 mA/ch @ 36 V), reduced GBP (12 MHz), same package and pinout. | Targeted at battery-powered sensors where speed <10 MHz suffices and quiescent power is critical. | Select when thermal budget or standby current dominates over bandwidth requirements. |
| TSB712IDT | Precision grade: ±100 µV offset, 0.3 µV/°C drift, but lower GBP (22 MHz) and slew rate (8 V/µs). | Used in high-accuracy analog front-ends (e.g., medical diagnostics) where DC accuracy outweighs speed. | Select when offset drift and long-term stability matter more than 52 MHz bandwidth. |
Compared with TSB612IDT, the TSB952IDT trades 3× higher current for 4.3× greater bandwidth and 4× faster settling-ideal for dynamic power control. Against TSB712IDT, it sacrifices 30× worse offset for 2.4× higher speed and 4× stronger drive capability-suited for closed-loop motor and power systems.
Availability
TSB952IDT is available at Aetrix Electronics and suitable for automotive battery management, industrial DC-DC converters, and motor phase current sensing requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSB952IDT 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power ICs, sensors, and analog components for automotive, industrial, and consumer markets.
The TSB95x series belongs to ST's high-speed precision op amp product line, engineered specifically for automotive-grade signal conditioning in harsh environments where bandwidth, rail-to-rail output, and thermal resilience are mandatory.
FAQ
What is the maximum safe supply voltage for TSB952IDT in DFN8 package at +125 °C ambient?
The absolute maximum supply voltage is 40 V, but thermal limits constrain practical operation. With RTH-JA = 40 °C/W and TJ(MAX) = 150 °C, the DFN8 package supports 36 V continuously at +125 °C ambient only if PCB copper area under the exposed pad exceeds 200 mm² and airflow is present. Derating to 32 V is recommended for sealed enclosures.
Can TSB952IDT drive a 1000 pF capacitive load without external compensation?
No-stability analysis shows gain peaking and overshoot occur with >22 pF loads in unity-gain configuration. For 1000 pF, a 47 Ω isolation resistor (RISO) must be placed in series with the output. This maintains DC accuracy while eliminating ringing, as confirmed in Figure 52 of DS14576 Rev 3.
How should the unused channel be terminated to prevent oscillation?
The unused channel must be configured as a unity-gain buffer: connect IN+ to a stable bias voltage within the common-mode range (e.g., VCC/2 via resistive divider), tie IN− to OUT, and leave OUT unconnected except for optional 100 pF bypass to GND. Leaving inputs floating or shorting IN+ to IN− causes instability and increased supply current.
Does TSB952IDT support true rail-to-rail input operation?
No-it features rail-to-rail *output*, but the input common-mode range extends only to VCC− and up to VCC+ −1.5 V. This allows ground-referenced inputs but prohibits direct connection to VCC+ in single-supply use. For full rail-to-rail input capability, ST recommends TSB512IDT or TSB712IDT instead.
TSB952IDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 2
- Output Type:
- Single Ended, Rail-to-Rail
- Slew Rate:
- 30V/µs
- Gain Bandwidth Product:
- 52 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 6 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 2.6mA (x2 Channels)
- Current - Output / Channel:
- 46 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
TSB952IDT FAQ
1.How can I place an order for TSB952IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB952IDT 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 TSB952IDT reliable?
The price and inventory of TSB952IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB952IDT is usually 5 days.
3.What payment methods are accepted for TSB952IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB952IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB952IDT?
TSB952IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB952IDT 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 TSB952IDT?
For technical support, including TSB952IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB952IDT requirements.
6.How does Aetrix verify that TSB952IDT is sourced from the original manufacturer or authorized distributors?
All TSB952IDT 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 TSB952IDT meets industry standards.
7.What is the process for return or replacement of TSB952IDT?
All TSB952IDT units undergo pre-shipment inspection (PSI). If there is an issue with TSB952IDT, 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 TSB952IDT part is unused and in its original packaging.
Return procedure for TSB952IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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