ADA4897-1 1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers

The ADA4896-2/ADA4897-1 are unity gain stable, low noise, rail-to-rail output, high speed voltage feedback amplifiers that have a quiescent current of 3 mA. With the 1/f noise of 2.4 nV/√Hz at 10 Hz and a spurious-free dynamic range of −80 dBc at 2 MHz, the ADA4896-2/ADA4897-1 are an ideal solution in a variety of applications, including ultrasound, low noise preamplifiers, and drivers of high performance ADCs. The Analog Devices, Inc., proprietary next generation SiGe bipolar process and innovative architecture enable such high performance amplifiers.

TheADA4896-2/ADA4897-1 have 230 MHz bandwidth, 120 V/μs slew rate, and settle to 0.1% in 45 ns. With a wide supply voltage range (3 V to 10 V), the ADA4896-2/ADA4897-1 are ideal candidates for systems that require high dynamic range, precision, and high speed.

The ADA4896-2 is available in 8-lead LFCSP and 8-lead MSOP packages. The ADA4897-1 is available in 8-lead SOIC and 6-lead SOT-23 packages. Both the ADA4896-2 and ADA4897-1 work over the extended industrial temperature range of −40°C to +125°C.

Applications

Low noise preamplifier
Ultrasound amplifiers PLL loop filters
High performance ADC drivers
DAC buffers

Features and Benefits

Low wideband noise
1 nV/√Hz
2.8 pA/√Hz
Low 1/f noise
2.4 nV/√Hz @ 10 Hz
Low distortion: −115 dBc @
100 kHz, V_OUT = 2 V p-p
Low power: 3 mA/amp
Low input offset voltage: 0.5 mV maximum
High speed
230 MHz, −3 dB bandwidth
(G = +1)
120 V/μs slew rate
45 ns settling time to 0.1%
Rail-to-rail output
Wide supply range: 3 V to 10 V
Disable feature (ADA4897-1)

Download ADA4897-1-EP Data Sheet (pdf)
Extended industrial temperature range
(−55°C to +125°C)
Controlled manufacturing baseline
1 assembly/test site
1 fabrication site
Enhanced product change notification
Qualification data available on request
V62/13614 DSCC Drawing Number

Amplifiers

Low Noise Amplifiers (≤ 10nV/√Hz)

SPICE Models

ADA4897 SPICE Macro-Model .CIR

Reference Designs

Data Sheets

Document	note
ADA4896-2/ADA4897-1/ADA4897-2: 1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers Datasheet (Rev. B)	PDF 663 kB
ADA4897-1: Microcircuit, Linear, Low Power Output Amplifiers, Monolithic Silicon - Military Datasheet (Rev. A)	PDF 273.18 K
ADA4897-1-EP/ADA4897-2-EP: Enhanced Product Data Sheet (Rev. 0)	PDF 355 kB
ADA4897-1-DSCC/ADA4897-2-DSCC: Military Data Sheet

Application Notes

Document	note
AN-0991: Active Filter Evaluation Board for Standard SOIC Op Amps (Rev. A)	PDF 99 kB

User Guides

Document	note
UG-838: Evaluation Board for Single, High Speed Op Amps Offered in 5-Lead SOT-23 and 6-Lead SOT-23 Packages	PDF 184.4 K
UG-755: 8-Lead SOIC Amplifier Evaluation Board User Guide	PDF 276 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADA4897-1ARJZ-R2 Production	6 ld SOT-23	REEL 250	-40 to 125C	2.61	2.61	Y
ADA4897-1ARJZ-R7 Production	6 ld SOT-23	REEL 3000	-40 to 125C	0	1.89	Y
ADA4897-1ARJZ-RL Production	6 ld SOT-23	REEL 10000	-40 to 125C	0	1.89	Y
ADA4897-1ARZ Production	8 ld SOIC	OTH 98	-40 to 125C	2.27	1.89	Y
ADA4897-1ARZ-R7 Production	8 ld SOIC	REEL 1000	-40 to 125C	0	1.89	Y
ADA4897-1ARZ-RL Production	8 ld SOIC	REEL 2500	-40 to 125C	0	1.89	Y
ADA4897-1SRJZ-EPR7 Production	6 ld SOT-23	REEL 3000	-55 to 125C	0	3.78	Y

Evaluation Boards

Part Number	Description	Price	RoHS
EVAL-HSOPAMP-1CPZ	Evaluation Board for 8-LD LFCSP	18.25	Y
EVAL-HSOPAMP-1KSZ	Evaluation Bare Board for 5 and 6-lead SC70 Package	18.25	Y
EVAL-HSOPAMP-1RJZ	Evaluation Bare Board for SOT-23 Package	18.25	Y
EVAL-HSOPAMP-1RZ	Evaluation Bare Board for 8-lead SOIC Package	18.25	Y
EVAL-HSOPAMP-E-1RZ	Evaluation Bare Board for 8 Lead SOIC dedicated feedback with epad connection	18.25	Y
EVAL-HSOPAMP-N-1RZ	Evaluation Bare Board for 8 Lead SOIC w/Null or Compensation functionality on Pins 1 and or 8	18.25	Y