ROHM News Detail

ROHM has added New Lineup of 17 High-Performance Op Amps Enhancing Design Flexibility

TLRx728/BD728x

ROHM has added the new CMOS Operational Amplifier (op amp) series “TLRx728” and “BD728x” to its lineup. These are suitable for a wide range of applications including automotive, industrial, and consumer systems. A broad lineup also makes product selection easier.

In recent years, demand for high-accuracy op amps has been rapidly increasing as automotive and industrial systems become more sophisticated, demanding faster speed, better precision, and higher efficiency. In applications requiring amplification of sensor outputs, minimizing signal error and delay is essential. To meet these requirements, a well-balanced set of key characteristics is needed, including Input Offset Voltage, Noise, and Slew Rate.

These new products are high-performance op amps that offer a low input offset voltage, low noise, and high slew rate. TLRx728 features an input offset voltage of 150 μV (typ.), while the BD728x offers 1.6 mV (typ.). Both series have a noise voltage density of 12 nV/√Hz at 1kHz and a slew rate of 10 V/μs. They are therefore suitable for a wide range of precision applications, including sensor signal processing, current detection circuits, motor driver control, and power supply monitoring systems. Both series are designed to balance versatility and high performance rather than being limited to specific applications.

Rail-to-Rail input/output capability allows maximum utilization of the power supply voltage range, ensuring a wide dynamic range.

Furthermore, in addition to 1 channel, 2 channels, and 4 channels configurations, a diverse range of packages is available, enabling optimal product selection based on application and board size.

The new products are being released simultaneously except for certain part numbers (Sample Price: 1-channel: $2.0, 2-channels: $2.8, 4-channels: $4.0 per unit, excluding tax).　For sales information, please refer to the lineup table. They are also available for purchase online through online distributors such as DigiKey, Mouser and Farnell.

Online Distributors

Series Part No. Data Sheet ch Power Supply Input Offset Voltage (Max.) Noise Voltage Density (Typ.) Slew Rate (Typ.) Supply Current (Typ.) Shutdown AEC-Q100 Package
TLRx728
series		 ☆ TLR728YG-C - 1 2.5V
to
5.5V		 150µV @25°C

550µV @All Temp

Drift 5.0µV/°C		 12nV/√Hz
@1kHz

30nV/√Hz
@10kHz		 10V/µs 1.70mA - ✓ SSOP5
NewTLR728G-LB PDF - -
☆ TLR2728YFVM-C - 2 3.40mA - ✓ MSOP8
NewTLR2728YFJ-C PDF - ✓ SOP-J8
NewTLR3728GUL PDF ✓ - VCSP50L1
☆ TLR4728YFV-C - 4 6.80mA - ✓ SOP14
BD728x
series		 NewBD7281YG-C PDF 1 2.5V
to
5.5V		 1.6mV @25°C

2.0mV @All Temp

Drift 4.0µV/°C		 12nV/√Hz
@1kHz

30nV/√Hz
@10kHz		 10V/µs 1.70mA - ✓ SSOP5
NewBD7281G-LB PDF - -
NewBD7280YG-C PDF ✓ ✓ SSOP6
NewBD7282YFVM-C PDF 2 3.40mA - ✓ MSOP8
NewBD7282FVM-LB PDF - -
NewBD7282YFJ-C PDF - ✓ SOP-J8
NewBD7282FJ-LB PDF - -
NewBD7284YFV-C PDF 4 6.80mA - ✓ SSOP-B14
NewBD7284FV-LB PDF - -
New BD7284F-LB PDF - - SOP14
NewBD7285FV-LB PDF ✓ - SSOP-B16

☆ : Coming soon

Application Examples

Automotive equipment, industrial equipment, and consumer electronics.
Example use case: Sensor signal processing, current detection circuits, motor driver control, power supply monitoring systems.

Terminology

Input Offset Voltage
The voltage that must be applied between the op amp’s two input terminals to force the output to zero volts.
Slew Rate
A performance metric indicating how rapidly an op amp's output voltage can change while operating in linear region.
Noise Voltage Density
Also called noise spectral density. This is noise power per square root of bandwidth of 1 Hz. The total noise power within a bandwidth of B Hz is Noise Voltage Density x √B.