NJR Precision Op-amps Guide

NJR op amps

New Japan Radio has a wide range of precision operational amplifiers, with just a small selection highlighted below. They have designed their latest generation of op-amps for greater RF immunity, with revised schematics, paying particular attention to layout plus on-chip filtering. The result is less errors and noise, maintaining high performance in spite of growing interference sources such as Bluetooth, WLAN and GSM.

You can also view our entire range of NJR op-amps here.

NJM8512 (dual)

Ideal for high instrumentation, sample and hold, active filters, analog-to-digital and digital-to-analog buffers.

  • Very low noise: 10nV/√Hz
  • High speed: 20V/µs
  • Low offset voltage from -40°C to +125°C: 700µV (B version)
  • Low offset voltage drift: 5µV (B version -40°C to +125°C)
  • Supply current: 1.65mA/channel

See the table below to compare the NJM8512’s performance to the LT1057, AD8512, OPA2131, OPA2132, OPA2140 & OPA2141.

NJM8530 (single) | NJM8532 (dual) | NJM8534 (quad)

  • Very low noise: 10nV/√Hz
  • Low supply current: <320µA/channel
  • 14V rail to rail input and output

Ideal for battery powered equipment, including instruments, active filters, and analog-to-digital and digital-to-analog buffers.

NJU7098A (single)

  • Virtually zero drift: 0.05µV/°C
  • Low offset voltage: 15µV max
  • Low supply current: 600µA
  • Shutdown function

Suitable for electronic scales, precision current sensing, thermocouple amplifiers, strain gauge amplifiers and medical instrumentation.

Comparison of NJM8512/8513 JFET Op-amps to competitor parts:

Operating Voltage±4.5V to ±16V±5V to ±15V±5V to ±15V±4.5V to ±18V±2.5V to ±18V
Operating Temperature-40°C to +125°C-40°C to +125°C-40°C to +125°C-40°C to +125°C-40°C to +125°C
Input Offset Voltage800μV max.400μV max.1mV max.1mV max.1mV max.0.5mV max. (U)
1mV max. (UA)
Input Offset Voltage*1400μV max.700μV max.1.8mV max.1.8mV max.– – –– – –
Offset Voltage Drift*9μV max.5μV max.12μV/°C max.8μV/°C max.10μV/°C max.10μV/°C max.
Slew Rate20V/μs typ.20V/μs typ.+25/-61V/μs typ.10V/μs typ.20V/μs typ.
Unity Gain Frequency7MHz typ.8MHz typ.9.3MHz typ.4MHz typ.8MHz typ.
Voltage Noise (f=1kHz)10 nV/√Hz typ.8 nV/√Hz typ.,
10 nV/√Hz max.
7.3 nV/√Hz typ.15 nV/√Hz typ.8 nV/√Hz typ.
Supply Current*Dual3.3mA max.5mA max.4mA max.3.5mA max. (Ta=25°C)9.6mA max. (Ta=25°C)
Package OutlineNJM8512 : EMP8 / MSOP8 (VSP8)SOP8, MSOP8, SSOP14SOP8, MSOP8, SSOP14SOP8, SOP14SOP8, SOP14
Other Info.RF-Immunity– – –– – –– – –– – –

* Over the specified temperature range

Table of drop in replacements for competitor parts

Grade Info.A versionB version
Product NameNJM8512AENJM8512ARNJM8512BENJM8512BR
Package NameEMP8MSOP8 (VSP8)EMP8MSOP8 (VSP8)
Texas Instruments
OPA2140 / 4140OPA2140AIDOPA2140AIDGK
OPA2141 / 4141OPA2141AIDOPA2141AIDGK
TL052 / 054TL052CD, ID
Analog Devices
AD8512 / 8513AD8512ARAD8512ARMAD8512BR
ADA4610-2 / -4ADA4610-2ARZADA4610-2ARMZ
ADA4000-2 / -4ADA4000-2ARZADA4000-2ARMZ
Linear Technology
LT1057LT1057S8, IS8

View our entire range of NJR Precision Op-amps modules