Core Contents

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

ROHM’s High-Performance Op Amps
ROHMのCMOSオペアンプのTLRx728シリーズとBD728xシリーズ

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.

Series Part No. 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
NEW

TLR728G-LB

Buy
Data Sheet
☆ TLR2728YFVM-C 2 3.40mA MSOP8
NEW

TLR2728YFJ-C

Buy
Data Sheet
SOP-J8
NEW

TLR3728GUL

Buy
Data Sheet
VCSP50L1
☆ TLR4728YFV-C 4 6.80mA SOP14
BD728x
series
NEW

BD7281YG-C

Buy
Data Sheet
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
NEW

BD7281G-LB

Contact Us
Data Sheet
NEW

BD7280YG-C

Buy
Data Sheet
SSOP6
NEW

BD7282YFVM-C

Buy
Data Sheet
2 3.40mA MSOP8
NEW

BD7282FVM-LB

Buy
Data Sheet
NEW

BD7282YFJ-C

Buy
Data Sheet
SOP-J8
NEW

BD7282FJ-LB

Contact us
Data Sheet
NEW

BD7284YFV-C

Buy
Data Sheet
4 6.80mA SSOP-B14
NEW

BD7284FV-LB

Contact us
Data Sheet
NEW

BD7284F-LB

Buy
Data Sheet
SOP14
NEW

BD7285FV-LB

Buy
Data Sheet
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.