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STMicroelectronics TSV7722IDT
- Part No.:
- TSV7722IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSV7722IDT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:58,689
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Product details
Overview
TSV7722IDT from STMicroelectronics is a dual, rail-to-rail output, low-input-bias-current operational amplifier optimized for precision low-side current sensing and photodiode amplification. It delivers 22 MHz gain bandwidth, 50 µV typical input offset voltage (200 µV max), 2 pA typical input bias current, and operates from 1.8 V to 5.5 V single supply - enabling high-accuracy signal conditioning in automotive sensor interfaces and strain gauge front-ends.
For engineers reviewing the TSV7722IDT datasheet, TSV7722IDT pinout, TSV7722IDT application, or TSV7722IDT equivalent, this device supports critical design tasks including A/D converter input buffering with 47 pF load drive, low-rail common-mode operation (down to VCC− − 0.1 V), and high-frequency photodiode current-to-voltage conversion with 7 nV/√Hz input voltage noise at 10 kHz.
Technical Context
The TSV7722IDT implements a unity-gain-stable voltage-feedback architecture with 44° phase margin and 8 dB gain margin at 5 V, CL = 47 pF. Its input stage uses a proprietary low-offset trimming process optimized at Vicm = 0 V, ensuring minimal drift (±4 µV/°C) across −40°C to +125°C.
It features rail-to-rail output swing (15 mV saturation voltage at 25°C), wide common-mode range (VCC− − 0.1 V to VCC+ − 1.1 V), and ultra-low input bias current enabling direct connection to high-impedance sensors - all while consuming only 1.7 mA per channel at 5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 22 MHz - enables stable closed-loop operation up to ~10 MHz in unity-gain configuration with 47 pF load. |
| Input Offset Voltage | 50 µV typ., 200 µV max - ensures ≤0.1% error in 50 mV full-scale current-sense applications at room temperature. |
| Input Bias Current | 2 pA typ. - permits direct interfacing with photodiodes and >1 GΩ source impedances without significant DC error. |
| Supply Voltage Range | 1.8 V to 5.5 V - supports battery-powered and automotive 3.3 V/5 V systems without level-shifting. |
| Input Voltage Noise | 7 nV/√Hz at 10 kHz - maintains SNR > 80 dB in 100 kHz bandwidth photodiode amplifier designs. |
| Common-Mode Range | VCC− − 0.1 V to VCC+ − 1.1 V - allows accurate amplification of signals referenced to ground in low-side shunt configurations. |
| Slew Rate | 8–11 V/µs - supports <300 ns settling to 0.1% for 1 V step inputs, suitable for fast transient current monitoring. |
Pinout & Package
TSV7722IDT is supplied in MiniSO8 package (3.9 mm × 4.9 mm, 1.27 mm pitch), with exposed pad thermally connected to VCC−. Pin functions are validated per STMicroelectronics DS13614 Rev 7 (pages 2–3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of Channel 1 - rail-to-rail capable, drives 10 kΩ load to within 15 mV of rails at 25°C. |
| 2 | IN1− | Inverting input of Channel 1 - accepts common-mode voltages down to VCC− − 0.1 V. |
| 3 | IN1+ | Non-inverting input of Channel 1 - matched to IN1− for CMRR ≥76 dB at 25°C. |
| 4 | VCC− | Negative supply terminal - serves as reference for both inputs and output swing; exposed pad tied here improves thermal performance. |
| 5 | IN2+ | Non-inverting input of Channel 2 - electrically isolated from Channel 1; channel separation ≥120 dB at 1 kHz. |
| 6 | IN2− | Inverting input of Channel 2 - supports independent differential sensing with same precision specs as Channel 1. |
| 7 | OUT2 | Output of Channel 2 - identical AC/DC performance to OUT1; no internal crosstalk degradation. |
| 8 | VCC+ | Positive supply terminal - accepts 1.8–5.5 V; supply rejection ratio ≥85 dB across operating range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers full dynamic range into ADCs: VOL = 15 mV, VOH = 15 mV at 25°C, enabling direct interface with 12-bit+ SAR converters. |
| Low input bias current | 2 pA typ. minimizes voltage error across high-value feedback resistors (e.g., 1 MΩ in transimpedance amplifiers), preserving photodiode linearity. |
| Optimized low-rail input | Input common-mode range extends to VCC− − 0.1 V, allowing precise amplification of shunt voltages near ground without level shifters. |
| Automotive-grade qualification | AEC-Q100 Grade 1 (−40°C to +125°C) ensures reliability in engine control, battery monitoring, and ADAS sensor nodes. |
| EMI robustness | EMIRR > 70 dB from 400 MHz–2.4 GHz on IN+/IN−/OUT pins reduces RF-induced offset shifts in noisy automotive environments. |
Applications
| Low-Side Current Measurement | Photodiode Amplification |
|---|---|
Use Scenario: Monitoring motor phase current in 12 V automotive ECUs using 5 mΩ shunt resistor. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end, converting µV-level shunt voltage to buffered 0–3.3 V signal for MCU ADC. Use Value: 200 µV max offset contributes <0.4% full-scale error at 50 mV sense voltage; rail-to-rail output maximizes ADC utilization. | Use Scenario: Converting photocurrent from UV detection diode in cabin air quality sensor. IC Role / Device Role / Timing Role: Transimpedance amplifier with 100 kΩ feedback resistor, operating at 100 kHz bandwidth. Use Value: 2 pA input bias current prevents >20 mV DC error; 7 nV/√Hz noise preserves signal integrity for sub-µA photocurrents. |
| Strain Gauge Signal Conditioning | Automotive Sensor Interface |
Use Scenario: Amplifying Wheatstone bridge output (±10 mV) in brake pedal force sensor. IC Role / Device Role / Timing Role: Low-drift, low-noise differential amplifier with gain = 500, driving 16-bit sigma-delta ADC. Use Value: ±4 µV/°C drift limits temperature-induced error to <0.5% over −40°C to +125°C; CMRR ≥74 dB rejects bridge common-mode noise. | Use Scenario: Front-end for tire pressure monitoring system (TPMS) piezoresistive sensor. IC Role / Device Role / Timing Role: Single-supply signal conditioner with 1.8 V operation, interfacing to ultra-low-power MCU. Use Value: 1.7 mA/channel supply current enables continuous sensing at 3.3 V; 1.8 V minimum supply supports energy harvesting use cases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV792IDT | Higher GBW (50 MHz), higher ICC (3.5 mA), same offset (200 µV max) and supply range. | Better suited for >20 MHz closed-loop bandwidth needs; less optimal for low-power battery operation. | Select when bandwidth >30 MHz is required and power budget allows +100% quiescent current. |
| TSB7192IPT | Wider supply (±18 V / 36 V single), higher Vio (300 µV max), same GBW (22 MHz), higher Iib (10 pA). | Supports industrial high-voltage sensor interfaces; not qualified for automotive temperature range. | Select for 24 V industrial current sensing where extended voltage range outweighs automotive qualification need. |
Compared with TSV7722IDT, TSV792IDT trades 100% higher supply current for 127% higher bandwidth, while TSB7192IPT sacrifices automotive qualification and low-bias-current advantage for 36 V operation - making TSV7722IDT the optimal choice for cost-sensitive, low-power, AEC-Q100-compliant dual-channel precision sensing.
Availability
TSV7722IDT is available at Aetrix Electronics and suitable for automotive current measurement, photodiode amplification, and strain gauge signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV7722IDT 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, Switzerland, designing and manufacturing microcontrollers, analog ICs, power management devices, and MEMS sensors for automotive, industrial, and consumer markets.
The TSV772x series belongs to ST's high-precision, high-speed operational amplifier product line, engineered specifically for automotive-grade sensor signal conditioning where low offset, low bias current, and rail-to-rail operation are mandatory in 1.8–5.5 V systems.
FAQ
What is the maximum capacitive load the TSV7722IDT can drive stably in unity-gain configuration?
The TSV7722IDT is fully specified for stable operation with up to 47 pF capacitive load. For loads exceeding 47 pF, stability degrades - causing peaking and ringing. To maintain stability, insert a 10–22 Ω isolation resistor (RISO) in series with the output. This preserves DC accuracy while damping high-frequency oscillation without requiring external compensation networks.
Does the TSV7722IDT require external compensation for low-side current sensing applications?
No external compensation is required. The device is unity-gain stable and internally compensated for 47 pF load. In low-side shunt applications, its input common-mode range extending to VCC− − 0.1 V eliminates need for level-shifting circuitry. Layout best practices - such as short traces, ground plane under exposed pad, and local 100 nF decoupling at VCC+ - ensure optimal performance without added components.
How does the TSV7722IDT perform at 1.8 V supply compared to 5 V?
At 1.8 V, GBW remains 21 MHz (vs. 22 MHz at 5 V), slew rate drops to 7.6 V/µs (vs. 8–11 V/µs), and output drive capability decreases to 35 mA sink/20 mA source. Input offset voltage and bias current remain unchanged. All key specs - including CMRR ≥68 dB and PSRR ≥80 dB - are guaranteed across 1.8–5.5 V, enabling seamless migration between battery and mains-powered designs.
Can unused channel of the TSV7722IDT be left floating?
No. An unused channel must be configured to prevent oscillation and excess current draw. Two valid configurations exist: (1) Unity-gain buffer - connect IN+ to any voltage within Vicm range and short IN− to OUT; or (2) Comparator mode - apply ≥100 mV differential between IN+ and IN− with no feedback. Leaving inputs unconnected risks instability that degrades performance of the active channel and increases total supply current.
TSV7722IDT 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:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 11V/µs
- Gain Bandwidth Product:
- 22 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 50 µV
- Current - Supply:
- 1.7mA (x2 Channels)
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
TSV7722IDT FAQ
1.How can I place an order for TSV7722IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV7722IDT 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 TSV7722IDT reliable?
The price and inventory of TSV7722IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV7722IDT is usually 5 days.
3.What payment methods are accepted for TSV7722IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV7722IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV7722IDT?
TSV7722IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV7722IDT 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 TSV7722IDT?
For technical support, including TSV7722IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV7722IDT requirements.
6.How does Aetrix verify that TSV7722IDT is sourced from the original manufacturer or authorized distributors?
All TSV7722IDT 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 TSV7722IDT meets industry standards.
7.What is the process for return or replacement of TSV7722IDT?
All TSV7722IDT units undergo pre-shipment inspection (PSI). If there is an issue with TSV7722IDT, 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 TSV7722IDT part is unused and in its original packaging.
Return procedure for TSV7722IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV7722IDT Tags
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