THS4522 - Very Low Power Dual FDA | TI | ADC Driver
MPN: THS4522 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.5 | $3.50 |
| 10 | $3.15 | $31.50 |
| 100 | $2.8 | $280.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.1 | $2,100.00 |
Drop-in alternatives for THS4522 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
THS4552
✅ Drop-In📋 Reference alternative (not in catalog)
THS4532
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →THS4531A
✅ Drop-In✓ In Stock
$1.82 / Unit
View Datasheet →ADA4940-2ACPZ
✅ Drop-In✓ In Stock
$4.33 / Unit
View Datasheet →LTC6362
✅ Drop-In📋 Reference alternative (not in catalog)
THS4522 Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Supply Voltage Range | 2.5 V to 5.5 V |
| Bandwidth (Gain = 1) | 95 MHz |
| Slew Rate | 100 V/µs |
| Quiescent Current per Channel | 1.1 mA |
| Input Voltage Noise | 4.6 nV/√Hz |
| Distortion (at 1 MHz) | -110 dBc |
| Output Current | 55 mA |
| Offset Voltage | 0.5 mV |
| Gain Bandwidth Product | 95 MHz |
| Enable Pin | Yes |
| Shutdown Current | 0.5 µA |
| Output Type | Rail-to-Rail |
| Input Common-Mode Range | Includes negative rail |
| Package | 16-TSSOP (PW) |
| Operating Temperature Range | -40°C to +125°C |
| RoHS Status | Compliant |
THS4522 Pin Configuration
| Pin 1 | OUT1+ — Positive output of channel 1 |
| Pin 2 | OUT1- — Negative output of channel 1 |
| Pin 3 | VCC — Positive power supply |
| Pin 4 | IN1+ — Non-inverting input of channel 1 |
| Pin 5 | IN1- — Inverting input of channel 1 |
| Pin 6 | VOCM — Output common-mode voltage control |
| Pin 7 | EN — Enable pin (active high) |
| Pin 8 | VEE — Negative power supply (or ground) |
| Pin 9 | IN2- — Inverting input of channel 2 |
| Pin 10 | IN2+ — Non-inverting input of channel 2 |
| Pin 11 | OUT2- — Negative output of channel 2 |
| Pin 12 | OUT2+ — Positive output of channel 2 |
| Pin 13 | NC — No connect |
| Pin 14 | NC — No connect |
| Pin 15 | NC — No connect |
| Pin 16 | NC — No connect |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
THS4522 is suitable for 6 applications: ADC Driver, Medical Imaging, Industrial Process Control, Test and Measurement, Portable Battery-Powered Devices, Automotive Sensor Interfaces.
ADC Driver
The THS4522 is ideal for driving high-speed ADCs in data acquisition systems. Its fully differential output provides balanced signals that improve common-mode rejection and reduce even-order harmonics. With 95 MHz bandwidth and 4.6 nV/√Hz noise, it preserves signal integrity for 12-16 bit converters. The rail-to-rail output maximizes dynamic range, and the low quiescent current of 1.1 mA per channel is suitable for multi-channel systems. The VOCM pin allows precise setting of the output common-mode voltage to match the ADC input range, ensuring optimal performance.
Recommended
Medical Imaging
In medical imaging systems, the THS4522 drives ADCs that digitize signals from sensors such as ultrasound transducers. Its low noise of 4.6 nV/√Hz and low distortion of -110 dBc ensure high-fidelity signal capture. The dual-channel configuration reduces component count in multi-channel imaging arrays. Operating from 2.5V to 5.5V, it can be powered from a single supply, simplifying system design. The industrial temperature range of -40°C to +125°C ensures reliability in clinical environments.
Recommended
Industrial Process Control
The THS4522 is used in industrial process control to condition signals from sensors and drive ADCs in PLCs and distributed control systems. Its rail-to-rail output and negative rail input capability allow interfacing with ground-referenced sensors in single-supply systems. The low quiescent current of 1.1 mA per channel is beneficial for power-sensitive field instruments. With 95 MHz bandwidth, it can handle fast transient signals, and the enable pin allows power-down for energy savings in battery-powered remote sensors.
Recommended
Test and Measurement
In test and measurement equipment, the THS4522 provides accurate signal conditioning for oscilloscopes, spectrum analyzers, and data loggers. Its high bandwidth of 95 MHz and slew rate of 100 V/µs enable faithful reproduction of fast waveforms. The low distortion of -110 dBc ensures minimal harmonic artifacts. The dual-channel design allows simultaneous processing of multiple signals, and the small TSSOP-16 package saves board space in compact instruments. The device's low power consumption extends battery life in portable testers.
Recommended
Portable Battery-Powered Devices
The THS4522 is well-suited for portable battery-powered devices due to its low quiescent current of 1.1 mA per channel and shutdown current of 0.5 µA. It operates from a 2.5V to 5.5V supply, compatible with single-cell lithium-ion batteries. The rail-to-rail output maximizes dynamic range in low-voltage systems. Applications include portable audio recorders, handheld medical monitors, and battery-operated sensors. The enable pin allows power management to extend battery life.
Recommended
Automotive Sensor Interfaces
The THS4522 is used in automotive sensor interfaces to condition signals from pressure, temperature, and position sensors. Its input common-mode range includes the negative rail, allowing direct interface with ground-referenced sensors. The device operates from 2.5V to 5.5V, suitable for automotive power rails. The industrial temperature range of -40°C to +125°C meets automotive requirements. The low power consumption and small package make it ideal for space-constrained ECUs.
Recommended
Recommended Products Summary
Engineering reference data for THS4522 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | THS4552 | THS4532 | ADA4940-2 |
|---|---|---|---|---|
| Package | 16-TSSOP (PW) | 16-TSSOP (PW) | 16-TSSOP (PW) | 16-TSSOP (PW) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Number of Channels | 2 | 2 | 2 | 2 |
| Bandwidth (Gain=1) | 95 MHz | 150 MHz | 36 MHz | 55 MHz |
| Slew Rate | 100 V/µs | 220 V/µs | 22 V/µs | 95 V/µs |
| Quiescent Current per Channel | 1.1 mA | 1.35 mA | 0.25 mA | 1.1 mA |
| Input Voltage Noise | 4.6 nV/√Hz | 3.3 nV/√Hz | 10 nV/√Hz | 3.5 nV/√Hz |
| Supply Voltage Range | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V | 3V to 5V |
Key Differentiators
- Very low power consumption (vs THS4552)
- Wide supply voltage range (vs ADA4940-2)
- Dual-channel in compact package (vs THS4531A)
Design Notes
Ensure proper power supply decoupling with 0.1 µF and 10 µF capacitors placed close to the VCC and VEE pins. This is critical for maintaining stability and reducing noise in high-frequency applications. According to the TI datasheet, inadequate decoupling can lead to oscillation and degraded performance.
Use precision resistors with low temperature coefficient in the feedback network to maintain gain accuracy. The THS4522's offset voltage is 0.5 mV, and resistor tolerance directly affects output accuracy. Place feedback resistors close to the inputs to minimize parasitic capacitance and inductance.
The VOCM pin sets the output common-mode voltage and should be bypassed with a capacitor to ground for optimal performance. If left floating, the output common-mode may drift, affecting ADC interface. Also, ensure the input common-mode range is not exceeded, as the device only includes the negative rail, not the positive rail.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified.
