ROHM has added the new CMOS Operational Amplifier series TLRx728 and BD728x to its lineup. The op amps are suitable for automotive, industrial, and consumer systems. A broad lineup is available to facilitate product selection. The new products feature low input offset voltage, low noise, and high slew rate. The TLRx728 series has an input offset voltage of 150 μV (typ.), while the BD728x series has 1.6 mV (typ.). Both series provide a noise voltage density of 12 nV/√Hz at 1 kHz and a slew rate of 10 V/μs.
Key specifications for both series include rail-to-rail input/output capability, power supply range of 2.5 V to 5.5 V, and configurations in 1-channel, 2-channel, and 4-channel versions. Multiple package options are offered to match application and board size requirements.
The series support applications such as sensor signal processing, current detection circuits, motor driver control, and power supply monitoring systems. They are designed for versatility across precision applications rather than being limited to specific uses.
The new products are being released simultaneously except for certain part numbers. Sample prices are $2.0 for 1-channel, $2.8 for 2-channel, and $4.0 for 4-channel versions (excluding tax). They are available for purchase online through distributors including DigiKey, Mouser, and Farnell.
Detailed lineup information includes the following specifications (selected part numbers shown with availability notes):
TLRx728 series:
- TLR728YG-C: 1 ch, AEC-Q100 qualified, SSOP5 package (coming soon)
- TLR2728YFVM-C: 2 ch, AEC-Q100, MSOP8
- TLR2728YFJ-C: 2 ch, AEC-Q100, SOP-J8
- TLR3728GUL: 4 ch, VCSP50L1
- TLR4728YFV-C: 4 ch, AEC-Q100, SOP14
BD728x series:
- BD7281YG-C: 1 ch, AEC-Q100, SSOP5
- BD7281G-LB: 1 ch, SSOP5
- BD7280YG-C: 1 ch, AEC-Q100, SSOP6
- BD7282YFVM-C: 2 ch, AEC-Q100, MSOP8
- BD7282YFJ-C: 2 ch, AEC-Q100, SOP-J8
- BD7284YFV-C: 4 ch, AEC-Q100, SSOP-B14
- BD7284FV-LB: 4 ch, SSOP-B14
- BD7285FV-LB: 5 ch, SSOP-B16 (selected examples; full table includes additional variants with and without shutdown or AEC-Q100 qualification)
Supply current is typically 1.70 mA per channel for 1 ch, 3.40 mA for 2 ch, and 6.80 mA for 4 ch versions. Some variants include shutdown function.
The op amps are intended for automotive equipment, industrial equipment, and consumer electronics.
