ROHM Develops the Industry's Smallest CMOS Op Amp Optimized for Smartphones and Compact IoT Devices
01 Agosto 2024 - 4:00PM
ROHM Semiconductor today announced the TLR377GYZ, an ultra-compact
1.8V-5V, rail-to-rail CMOS operational amplifier (op amp),
optimized for amplifying signals from sensors such as temperature,
pressure, flow rate, used in smartphones, small IoT devices, and
similar applications.
The size of smartphones and IoT devices
continues to decrease, requiring smaller components. To accurately
amplify small signals as needed in high precision sensing, op amps
must improve low input offset voltage and noise performance while
continuing to shrink the form factor. The TLR377GYZ succeeds
in balancing miniaturization with high accuracy (which has been
difficult to achieve with conventional op amps) by further evolving
proprietary circuit design, process, and packaging technologies
cultivated over many years.
Op amps’ input offset voltage and noise
generation degrade amplification accuracy and can be suppressed by
increasing the size of the built-in transistors, but at the expense
of miniaturization. In response, ROHM developed proprietary
circuits which achieve a maximum offset voltage as low as 1mV
without increasing the size of the transistors. In addition,
proprietary process technology greatly reduces flicker noise, while
ultra-low noise is achieved with an input equivalent noise voltage
density of 12nV/√Hz by optimizing the resistive components at the
element level. Furthermore, the new product adopts a WLCSP (Wafer
Level Chip Scale Package) with a ball pitch of just 0.3mm utilizing
original packaging technology. This reduces size by approximately
69% compared to conventional products and 46% over existing compact
products, making it the industry’s smallest[1] CMOS op amp.
The IC-mounted conversion board that can replace
SSOP6 packages is also offered to support replacement
considerations and initial evaluation. Both the new product and
conversion board are available for purchase through online
distributors. In addition, the high accuracy SPICE model, called
ROHM Real Model, is available on ROHM’s website for
verification simulations.
Going forward, in addition to greater
miniaturization and accuracy, ROHM will continue to improve op amp
performance by reducing power consumption further utilizing
proprietary ultra-low current consumption technology.
Product DetailsSee the product details
here: TLR377GYZ
Key feature: A shut down function required by
mobile devices is built in, reducing power consumption during
standby mode.
Application Examples
-
Smartphones, compact IoT devices equipped with measurement sensor
amps, etc.
Online Sales Information
- Available: Now
- Online distributors:
DigiKey, Mouser and Farnell
- The products will be
offered at other online distributors as they become available.
- Part number:
TLR377GYZ
- IC-mounted
conversion board: TLR377GYZ-EVK-001
High Accuracy Simulation Models: ROHM Real Models
ROHM Real Models are new high accuracy
SPICE models that utilizes original model-based technology to
faithfully reproduce the electrical and temperature characteristics
of the actual IC, resulting in a perfect match between the IC and
simulation values. This ensures reliable verification, contributing
to more efficient application development, for example by
preventing rework after prototyping. ROHM Real Models are now
available on ROHM’s website.
[1] ROHM study, August 2024
- ROHM's New TLR377GYZ Ultra-compact 1.8V-5V, Rail-to-rail CMOS
Op Amp
- ROHM's Op Amps Package Size
Keng Ly
ROHM Semiconductor
(248) 348-9920
kly@rohmsemiconductor.com
Heather Savage
BWW Communications
(408) 507-4398
heather.savage@bwwcomms.com