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Texas Instruments THS4532IPWR
- Part No.:
- THS4532IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
THS4532IPWR.pdf
- Description:
- IC OPAMP DIFF 2 CIRCUIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,609
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Product details
Overview
THS4532IPWR from Texas Instruments is a dual-channel, ultra-low-power, fully-differential amplifier with rail-to-rail output and negative-rail input capability. It operates from 2.5 V to 5.5 V, draws only 250 µA per channel, delivers 36 MHz bandwidth and 200 V/µs slew rate, and supports precise dc-coupled interfacing to SAR and delta-sigma ADCs in battery-powered data acquisition systems.
For engineers reviewing the THS4532IPWR datasheet, THS4532IPWR pinout, THS4532IPWR application, or THS4532IPWR equivalent, this page provides verified specifications, validated pin functions, confirmed differential driver use cases, and two technically documented alternative parts for low-power, high-accuracy signal conditioning designs.
Technical Context
The THS4532IPWR integrates two independent fully-differential amplifiers sharing no internal biasing-each with dedicated VOCM, PD, and supply pins-enabling independent power-down and common-mode control. Its input stage extends below the negative rail (VS– – 0.2 V), and its rail-to-rail output swings within 100 mV of either rail at 5 V supply.
Each channel features accurate VOCM feedback path (gain = 0.99–1.01 V/V, offset ≤ ±5 mV) and maintains >114 dB open-loop gain, <±100 µV input offset, and –120 dBc THD at 1 kHz (1 VRMS), enabling direct coupling to precision ADCs without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V - supports single-supply operation in portable and industrial 3.3 V/5 V systems |
| Quiescent Current | 250 µA per channel - enables multi-channel, power-dense designs with sub-1 mA total bias current |
| Small-Signal Bandwidth | 36 MHz at VS = 5 V - sufficient for driving 1 MSPS+ SAR ADCs with full settling margin |
| Slew Rate | 220 V/µs (rising), 390 V/µs (falling) - ensures fast transient response for wideband sensor signals |
| THD | –120 dBc at 1 kHz, 1 VRMS - meets high-fidelity audio and precision measurement requirements |
| Input Voltage Noise | 10 nV/√Hz at 1 kHz - preserves SNR in low-level analog front-ends before ADC digitization |
| Input Offset Voltage | ±100 µV max - minimizes dc error in closed-loop gain configurations used for sensor amplification |
Pinout & Package
TSSOP-16 package (5.00 mm × 4.40 mm body size) with exposed thermal pad; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PD1, PD2 | Power-down control inputs | Logic-high enables channel; logic-low reduces quiescent current to 0.5 µA - enables dynamic channel gating in multi-sensor systems |
| VIN1±, VIN2± | Differential input pairs | Input common-mode range extends to VS– – 0.2 V - allows ground-referenced single-ended sources without level shifters |
| VOUT1±, VOUT2± | Differential outputs | Rail-to-rail swing (VS– + 0.1 V to VS+ – 0.12 V) - maximizes dynamic range into ADC differential inputs |
| VOCM1, VOCM2 | Output common-mode voltage setpoints | Directly programs output midpoint (0.75 V to 4.15 V range); 0.99–1.01 V/V tracking - eliminates need for external resistive dividers |
| VS1+, VS2+, VS– | Independent positive and shared negative supplies | VS1+/VS2+ allow separate supply domains per channel; VS– pins tied internally - supports isolated or split-domain biasing |
Key Features
| Feature | Design Value |
|---|---|
| Fully-differential architecture | Rejects common-mode noise on PCB traces and cables; enables true differential signaling without external baluns or transformers |
| Negative-rail input (NRI) | Accepts input signals down to VS– – 0.2 V - simplifies interface to ground-referenced sensors and transducers |
| Output common-mode control | VOCM pins set output DC level independently of gain configuration - ensures optimal ADC input range alignment across varying supply voltages |
| Rail-to-rail output (RRO) | Delivers >98% of full-scale swing at 5 V supply - maximizes effective resolution of 16-bit+ ADCs |
| Ultra-low power-down mode | 0.5 µA per channel quiescent current - extends battery life in duty-cycled data loggers and IoT edge nodes |
Applications
| Low-Power SAR ADC Driver | Single-Ended to Differential Conversion |
|---|---|
Use Scenario: Driving ADS8861 (16-bit, 1-MSPS SAR ADC) in a handheld multimeter with 3.3 V supply and battery operation. IC Role / Device Role / Timing Role: Fully-differential amplifier providing gain, common-mode level translation, and noise rejection between front-end signal conditioning and ADC input. Use Value: Enables direct dc-coupled interface with <±100 µV offset and –120 dBc THD, preserving full 16-bit ENOB without calibration overhead. | Use Scenario: Converting output of a single-ended MEMS microphone preamp to differential format for noise-immune routing across a 4-layer PCB to an audio codec. IC Role / Device Role / Timing Role: Precision single-ended-to-differential converter with matched gain and phase across both channels. Use Value: Achieves –67 dB output balance error at 1 MHz and –133 dB crosstalk, suppressing board-level EMI and ground bounce artifacts. |
| High Channel Count Data Acquisition | Low-Power Wideband Signal Conditioning |
Use Scenario: 8-channel simultaneous sampling system for vibration monitoring in predictive maintenance equipment, using THS4532IPWR per channel. IC Role / Device Role / Timing Role: Independent dual-channel amplifier allowing per-sensor gain, offset, and power management without inter-channel interference. Use Value: Total system quiescent current <2 mA (8 × 250 µA) with 36 MHz bandwidth per channel - enables compact, fanless enclosure design. | Use Scenario: Front-end amplifier for ultrasonic pulse-echo receiver in portable medical imaging device operating from 3.7 V Li-ion battery. IC Role / Device Role / Timing Role: Wideband differential driver handling 1–10 MHz echo signals with minimal added noise and distortion. Use Value: 10 nV/√Hz input voltage noise and –122 dBc 2nd-harmonic distortion at 1 MHz preserve weak echo signal integrity for time-of-flight analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully-differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4531IPWR | Single-channel, identical specs except 10 MHz THD bandwidth (–104 dBc @ 100 kHz vs –120 dBc @ 1 kHz for THS4532IPWR) | Lower channel density; suitable where only one differential path is needed per board area | Select THS4531IPWR when space-constrained single-channel performance suffices and dual-channel integration is unnecessary |
| THS4521RGTR | Higher power (1.14 mA/ch), higher bandwidth (145 MHz), lower THD (–120 dBc @ 1 MHz), WQFN-16 package | Targets high-speed, high-accuracy applications like communications baseband; not optimized for ultra-low power | Choose THS4521RGTR only when >100 MSPS sampling or sub-100 ps settling is required - not a drop-in replacement for THS4532IPWR |
Compared with THS4532IPWR, THS4531IPWR offers identical ultra-low power but halves channel count, while THS4521RGTR trades 4.5× higher current for 4× wider bandwidth and improved high-frequency linearity - making THS4532IPWR optimal for battery-powered, multi-channel, medium-bandwidth precision acquisition.
Availability
THS4532IPWR is available at Aetrix Electronics and suitable for low-power SAR/ΔΣ ADC drivers, single-ended-to-differential conversion, high-channel-count data acquisition, and portable medical instrumentation requiring stable component supply and long-term production continuity.
Supply support for THS4532IPWR 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 company specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.
The THS4532IPWR belongs to TI's ultra-low-power fully-differential amplifier product line, designed specifically for dc-coupled, battery-operated signal chains interfacing to high-resolution ADCs in portable test equipment and industrial sensing.
FAQ
What is the maximum operating temperature range for the THS4532IPWR?
The THS4532IPWR is characterized for operation from –40°C to +125°C ambient temperature, meeting extended industrial requirements. This rating is confirmed in Section 7.3 (Recommended Operating Conditions) and Section 7.1 (Absolute Maximum Ratings) of the official TI datasheet SLOS829A, with thermal metrics including RθJA = 122.4°C/W for the TSSOP-16 package.
Does the THS4532IPWR support true rail-to-rail input?
No, the THS4532IPWR does not support rail-to-rail input. Its input common-mode range extends to VS– – 0.2 V (negative-rail input) and up to VS+ – 1.2 V, as specified in Section 7.5 and 7.6 Electrical Characteristics. It is explicitly described as "Negative Rail Input (NRI)" - not rail-to-rail input - and requires input signals to remain within those bounds for linear operation.
Can the THS4532IPWR drive a 600-Ω differential load?
Yes, the THS4532IPWR can drive a 600-Ω differential load. The datasheet specifies RL = 600 Ω in the small-signal frequency response test conditions (Figure G071), and electrical characteristics confirm ±15 mA linear output current drive per side at 25°C. Output saturation voltage remains ≤120 mV at 5 V supply, ensuring adequate headroom for 1 VRMS output into 600 Ω.
What is the typical power-down quiescent current of the THS4532IPWR?
The typical power-down quiescent current of the THS4532IPWR is 0.5 µA per channel, as stated in the Features section and confirmed in Section 7.5 and 7.6 Electrical Characteristics under "Power-down quiescent current" (test condition: PD = VS– + 0.5 V). This ultra-low value enables aggressive power gating in energy-sensitive applications such as wireless sensor nodes.
Is the THS4532IPWR pin-compatible with the THS4531IPWR?
No, the THS4532IPWR is not pin-compatible with the THS4531IPWR. The THS4532IPWR is a dual-channel device in TSSOP-16, while the THS4531IPWR is single-channel in TSSOP-8. Pin counts, functions, and layout footprints differ fundamentally - e.g., THS4532IPWR has separate PD1/PD2, VOCM1/VOCM2, and VS1+/VS2+ pins absent in the 8-pin variant. No pin-to-pin mapping exists between them.
THS4532IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 2
- Output Type:
- Differential, Rail-to-Rail
- Slew Rate:
- 390V/µs
- Gain Bandwidth Product:
- 27 MHz
- -3db Bandwidth:
- 36 MHz
- Current - Input Bias:
- 200 nA
- Voltage - Input Offset:
- 80 µV
- Current - Supply:
- 250µA (x2 Channels)
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
THS4532IPWR FAQ
1.How can I place an order for THS4532IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4532IPWR 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 THS4532IPWR reliable?
The price and inventory of THS4532IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4532IPWR is usually 5 days.
3.What payment methods are accepted for THS4532IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4532IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4532IPWR?
THS4532IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4532IPWR 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 THS4532IPWR?
For technical support, including THS4532IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4532IPWR requirements.
6.How does Aetrix verify that THS4532IPWR is sourced from the original manufacturer or authorized distributors?
All THS4532IPWR 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 THS4532IPWR meets industry standards.
7.What is the process for return or replacement of THS4532IPWR?
All THS4532IPWR units undergo pre-shipment inspection (PSI). If there is an issue with THS4532IPWR, 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 THS4532IPWR part is unused and in its original packaging.
Return procedure for THS4532IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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