ANALOG DEVICES ADA4898-1 Data Sheet

High Voltage, Low Noise, Low Distortion, Unity-Gain Stable, High Speed Op Amp

ADA4898-1/ADA4898-2 FEATURES CONNECTION DIAGRAM

ADA4898-1

Ultralow noise

TOP VIEW 0.9 n V/√Hz (Not to Scale)

2.4 p A/√Hz NC PD8 1.2 n V/√Hz at 10 Hz –IN +VS7 +IN VOUT6

Ultralow distortion: −93 d Bc at 500 k Hz

–VS NC5

Wide supply voltage range: ±5 V to ±16 V

High speed NC = NO CONNECT

−3 d B bandwidth: 65 MHz (G = +1) Figure 1. Single 8-Lead ADA4898-1 SOIC_N_EP (RD-8-1)

Slew rate: 55 V/µs

ADA4898-2 Unity gain stable TOP VIEW (Not to Scale)

Low input offset voltage: 160 µV maximum

VOUT1 +VS8

Low input offset voltage drift: 1 μV/°C

–IN1 VOUT27

Low input bias current: −0.1 µA Low input bias current drift: 2 n A/°C –IN26

Supply current: 8 m A

–VS +IN25

Power-down feature for single 8-lead package

VO LT IS (n V/ √H z)

Figure 2. Dual 8-Lead ADA4898-2 SOIC_N_EP (RD-8-1)

APPLICATIONS Instrumentation Active filters DAC buffers SAR ADC drivers Optoelectronics

GENERAL DESCRIPTION The ADA4898 is an ultralow noise and distortion, unity gain stable, voltage feedback op amp that is ideal for use in 16-bit and 18-bit systems with power supplies from ±5 V to ±16 V. The

CURRENT

ADA4898 features a linear, low noise input stage and internal

compensation that achieves high slew rates and low noise. With the wide supply voltage range, low offset voltage, and wide VOLTAGE bandwidth, the ADA4898 is extremely versatile, and it features a cancellation circuit that reduces input bias current.

EN IS (p /√ z)

The ADA4898 is available in an 8-lead SOIC package that features an exposed metal paddle to improve power dissipation and heat transfer to the negative supply plane. This EPAD offers a

significant thermal relief over traditional plastic packages. The 0.1 0.1

ADA4898 is rated to work over the extended industrial

FREQUENCY (Hz)

temperature range of −40°C to +105°C.

Figure 3. Input Voltage Noise and Current Noise vs. Frequency

Rev. C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

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