Datasheet ADA4897-1-EP, ADA4897-2-EP (Analog Devices)

1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers Enhanced Product ADA4897-1-EP/ ADA4897-2-EP FEATURES
The ADA4897-1-EP is available in 6-lead SOT-23 package and the ADA4897-2-EP is available in a 10-lead MSOP package. The
Low wideband noise
ADA4897-1-EP/ADA4897-2-EP operate over the extended
1 nV/√Hz 2.8 pA/√Hz
industrial temperature range of −55°C to +125°C. Additional
Low 1/f noise: 2.4 nV/√Hz at 10 Hz
application and technical information can be found in the
Low distortion: −115 dBc at 100 kHz, V
ADA4897-1/ADA4897-2 data sheet.
OUT = 2 V p-p Low power: 3 mA per amplifier FUNCTIONAL BLOCK DIAGRAM Low input offset voltage: 0.5 mV maximum ADA4897-1-EP High speed OUT 1 6 +VS −3 dB bandwidth: 230 MHz (G = +1) Slew rate: 120 V/μs –VS 2 5 DISABLE Settling time to 0.1%: 45 ns
101
+IN 3 4 –IN
48-
Rail-to-rail output
094
Wide supply range: 3 V to 10 V
Figure 1. 6-Lead SOT-23 (ADA4897-1-EP)
Disable feature 8 VS = ±5V ENHANCED PRODUCT FEATURES 7 Supports defense and aerospace applications (AQEC standard) ) 6 Extended industrial temperature range (−55°C to +125°C) √Hz Controlled manufacturing baseline V/ 5 1 assembly/test site ISE (n O 4 1 fabrication site E N Enhanced product change notification G 3 A T Qualification data available on request L O V 2 APPLICATIONS 1 Low noise preamplifier Ultrasound amplifiers 0
2
1 10 100 1k 10k 100k 1M 5M
10
PLL loop filters
8-
FREQUENCY (Hz)
944 0
High performance ADC drivers
Figure 2. Voltage Noise vs. Frequency
DAC buffers Table 1. Other Low Noise Amplifiers GENERAL DESCRIPTION VN (nV/√Hz) Supply
The ADA4897-1-EP/ADA4897-2-EP are unity-gain stable, low
Part No. At 1 kHz At 100 kHz BW (MHz) Voltage (V)
noise, rail-to-rail output, high speed voltage feedback amplifiers that AD797 0.9 0.9 8 10 to 30 have a quiescent current of 3 mA. With a 1/f noise of 2.4 nV/ AD8021 5 2.1 490 5 to 24 √Hz at 10 Hz and a spurious-free dynamic range of −80 dBc at AD8099 3 0.95 510 5 to 12 2 MHz, these amplifiers are ideal solutions in a variety of AD8045 6 3 1000 3.3 to 12 applications, including ultrasound, low noise preamplifiers, and ADA4899-1 1.4 1 600 5 to 12 drivers of high performance ADCs. The Analog Devices, Inc., ADA4898-1/ 0.9 0.9 65 10 to 32 proprietary next-generation SiGe bipolar process and innovative ADA4898-2 architecture enable such high performance amplifiers.
Table 2. Complementary ADCs
The ADA4897-1-EP/ADA4897-2-EP have 230 MHz bandwidth,
Part No. Bits Speed (MSPS) Power (mW)
120 V/μs slew rate, and settle to 0.1% in 45 ns. With a wide AD7944 14 2.5 15.5 supply voltage range of 3 V to 10 V, the ADA4897-1-EP/ AD7985 16 2.5 15.5 ADA4897-2-EP are ideal candidates for systems that require AD7986 18 2 15 high dynamic range, precision, low power, and high speed.
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Document Outline Features Enhanced Product Features Applications General Description Functional Block Diagram Revision History Specifications ±5 V Supply +5 V Supply +3 V Supply Absolute Maximum Ratings Thermal Resistance Maximum Power Dissipation ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Outline Dimensions Ordering Guide