AD8139 Low Noise, Rail-to-Rail, Differential ADC Driver _ BDTIC a Leading Distributor in China

AD8139 Low Noise, Rail-to-Rail, Differential ADC Driver

The AD8139 is an ultralow noise, high performance differential amplifier with rail-to-rail output. With its low noise, high SFDR, and wide bandwidth, it is an ideal choice for driving analog-to-digital converters (ADCs) with resolutions to 18 bits. The AD8139 is easy to apply, and its internal common-mode feedback architecture allows its output common-mode voltage to be controlled by the voltage applied to one pin. The internal feedback loop also provides outstanding output balance as well as suppression of even-order harmonic distortion products. Fully differential and single-ended-to-differential gain configurations are easily realized by the AD8139. Simple external feedback networks consisting of four resistors determine the closed-loop gain of the amplifier.

The AD8139 is manufactured on the proprietary Analog Devices, Inc., second-generation XFCB process, enabling it to achieve low levels of distortion with input voltage noise of only 2.25 nV/√Hz.

The AD8139 is available in an 8-lead SOIC package with an exposed paddle (EP) on the underside of its body and a 3 mm × 3 mm LFCSP. It is rated to operate over the temperature range of −40°C to +125°C.

Applications

Features and Benefits

Fully differential

Low noise

2.25 nV/√Hz
2.1 pA/√Hz

2.25 nV/√Hz

2.1 pA/√Hz

Low harmonic distortion

98 dBc SFDR at 1 MHz
85 dBc SFDR at 5 MHz
72 dBc SFDR at 20 MHz

98 dBc SFDR at 1 MHz

85 dBc SFDR at 5 MHz

72 dBc SFDR at 20 MHz

High speed

410 MHz, 3 dB BW (G = 1)
800 V/µs slew rate
45 ns settling time to 0.01%

410 MHz, 3 dB BW (G = 1)

800 V/µs slew rate

45 ns settling time to 0.01%

69 dB output balance at 1 MHz

80 dB dc CMRR

Low offset: ±0.5 mV maximum

Low input offset current: 0.5 µA maximum

Differential input and output

Differential-to-differential or single-ended-to-differential operation

Rail-to-rail output

Adjustable output common-mode voltage

Wide supply voltage range: 5 V to 12 V

Available in a small SOIC package and an 8-lead LFCSP

Amplifiers

SPICE Models

AD8139 SPICE Macro Model .CIR

Data Sheets

Document	note
AD8139: Low Noise, Rail-to-Rail, Differential ADC Driver Data Sheet (Rev. C)	PDF 535.71 K

Application Notes

Document	note
AN-1363: Meeting Biasing Requirements of Externally Biased RF/Microwave Amplifiers with Active Bias Controllers (Rev. 0)	PDF 804.11 K
AN-0992: Active Filter Evaluation Board for Differential Amplifiers (Rev. 0)	PDF 85 kB
AN-1026: High Speed Differential ADC Driver Design Considerations (Rev. A)	PDF 355 kB
AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0)	PDF 5.3 M
AN-584: Using the AD813X Differential Amplifier (Rev. 0)	PDF 174 kB

User Guides

Document	note
UG-474: Evaluation Board for Differential Amplifiers Offered in 8-Lead SOIC Packages	PDF 263 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD8139ACPZ-R2 Production	8 ld LFCSP (3x3mm 1.74x1.45mm EP)	REEL 250	-40 to 125C	4.95	4.95	Y
AD8139ACPZ-REEL Production	8 ld LFCSP (3x3mm 1.74x1.45mm EP)	REEL 5000	-40 to 125C	0	3.75	Y
AD8139ACPZ-REEL7 Production	8 ld LFCSP (3x3mm 1.74x1.45mm EP)	REEL 1500	-40 to 125C	0	3.75	Y
AD8139ARDZ Production	8 ld SOIC-EP	OTH 98	-40 to 125C	4.3	3.75	Y
AD8139ARDZ-REEL Production	8 ld SOIC-EP	REEL 2500	-40 to 125C	0	3.75	Y
AD8139ARDZ-REEL7 Production	8 ld SOIC-EP	REEL 1000	-40 to 125C	0	3.75	Y

Evaluation Boards

Part Number	Description	Price	RoHS
EVAL-FDA-1CPZ-16	Evaluation Bare Board for 16 Lead LFCSP	18.25	Y
EVAL-FDA-1RMZ-8	Evaluation Bare Board for 8 Lead MSOP	18.25	Y
EVAL-FDA-1RZ-8	Evaluation Bare Board for 8 Lead SOIC	18.25	Y
FDA-FILTER-CPZ	Evaluation Board Filter for LFCSP	18.25	Y