ADA4930-2YCPZ-R7

ADA4930-2YCPZ-R7 Datasheet


The ADA4930-1/ADA4930-2 are very low noise, low distortion, high speed differential amplifiers. They are an ideal choice for driving V high performance ADCs with resolutions up to 14 bits from dc to 70 MHz. The adjustable output common mode allows the ADA4930-1/ADA4930-2 to match the input of the ADC. The internal common-mode feedback loop provides exceptional output balance, suppression of even-order harmonic distortion products, and dc level translation.

Part Datasheet
ADA4930-2YCPZ-R7 ADA4930-2YCPZ-R7 ADA4930-2YCPZ-R7 (pdf)
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Data Sheet

Low input voltage noise Low common-mode output V on single supply Extremely low harmonic distortion
−104 dBc HD2 at 10 MHz −79 dBc HD2 at 70 MHz −73 dBc HD2 at 100 MHz −101 dBc HD3 at 10 MHz −82 dBc HD3 at 70 MHz −75 dBc HD3 at 100 MHz High speed −3 dB bandwidth of GHz, G = 1 Slew rate 3400 V/us, 25% to 75% dB gain flatness to 380 MHz Fast overdrive recovery of ns mV typical offset voltage Externally adjustable gain Differential-to-differential or single-ended-to-differential operation Adjustable output common-mode voltage Single-supply operation V or 5 V

ADC drivers Single-ended-to-differential converters IF and baseband gain blocks Differential buffers Line drivers

The ADA4930-1/ADA4930-2 are very low noise, low distortion, high speed differential amplifiers. They are an ideal choice for driving V high performance ADCs with resolutions up to 14 bits from dc to 70 MHz. The adjustable output common mode allows the ADA4930-1/ADA4930-2 to match the input of the ADC. The internal common-mode feedback loop provides exceptional output balance, suppression of even-order harmonic distortion products, and dc level translation.

With the ADA4930-1/ADA4930-2, differential gain configurations are easily realized with a simple external feedback network of four resistors determining the closed-loop gain of the amplifier.

The ADA4930-1/ADA4930-2 are fabricated using Analog Devices, Inc., proprietary silicon-germanium SiGe , complementary bipolar process, enabling them to achieve very low levels of distortion with an input voltage noise of only

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Ultralow Noise Drivers for Low Voltage ADCs

ADA4930-1/ADA4930-2

FUNCTIONAL BLOCK DIAGRAMS
16 15 14 13
1 +IN 2 3 +FB 4

ADA4930-1
12 PD 11 10 +OUT 9 VOCM
09209-001
+VS 5 +VS 6 +VS 7 +VS 8

Figure
24 +IN1 23 22 21 20 PD1 19
+FB1 2 +VS1 3 +VS1 4 5 +IN2 6

ADA4930-2
18 +OUT1
17 VOCM1
16 15
14 PD2
7 +FB2 8 +VS2 9 +VS2 10 VOCM2 11 +OUT2 12
09209-002

Figure
09209-003
10k 100k
10M 100M

FREQUENCY Hz

Figure Voltage Noise Spectral Density

The low dc offset and excellent dynamic performance of the ADA4930-1/ADA4930-2 make them well suited for a wide variety of data acquisition and signal processing applications.

The ADA4930-1 is available in a Pb-free, 3 mm x 3 mm 16-lead LFCSP, and the ADA4930-2 is available in a Pb-free, 4 mm x 4 mm 24-lead LFCSP. The pinout has been optimized to facilitate printed circuit board PCB layout and minimize distortion. The ADA4930-1 is specified to operate over the −40°C to +105°C temperature range, and the ADA4930-2 is specified to operate over the −40°C to +105°C temperature range for V or 5 V supply voltages.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
0 Initial Version

Data Sheet

Test 15 Operational 16

Definition of 16 Theory of Operation 17
Analyzing an Application Circuit 17 Setting the Closed-Loop Gain 17 Estimating the Output Noise Voltage 17 Impact of Mismatches in the Feedback Networks 18 Input Common-Mode Voltage Range 18 Minimum RG Value 19 Setting the Output Common-Mode Voltage 19 Calculating the Input Impedance for an Application Circuit.....19 Layout, Grounding, and 23 High Performance ADC Driving 24 Outline Dimensions 25 Ordering Guide 25

Data Sheet

ADA4930-1/ADA4930-2

SPECIFICATIONS

V OPERATION

VS = V, VICM = V, VOCM = V, RF = 301 Ω, RG = 301 Ω, RL, dm = 1 kΩ, single-ended input, differential output, TA = 25°C, TMIN to TMAX = −40°C to +105°C, unless otherwise noted.

Table Parameter DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth −3 dB Large Signal Bandwidth for dB Flatness

ADA4930-1 ADA4930-2 Slew Rate Settling Time to Overdrive Recovery Time NOISE/HARMONIC PERFORMANCE HD2/HD3

Third-Order IMD

Input Voltage Noise Input Current Noise Crosstalk DC PERFORMANCE Input Offset Voltage Input Offset Voltage Drift Input Bias Current Input Bias Current Drift Input Offset Current Open-Loop Gain INPUT CHARACTERISTICS Input Common-Mode Voltage Range Input Resistance

Input Capacitance CMRR OUTPUT CHARACTERISTICS Output Voltage Linear Output Current Output Balance Error

Test Conditions/Comments

VO, dm = V p-p VO, dm = 2 V p-p VO, dm = V p-p

VO, dm = 2 V step, 25% to 75% VO, dm = 2 V step, RL = 200 Ω G = 3, VIN, dm = V p-p pulse

VO, dm = 2 V p-p, fC = 10 MHz VO, dm = 2 V p-p, fC = 30 MHz VO, dm = 2 V p-p, fC = 70 MHz VO, dm = 2 V p-p, fC = 100 MHz VO, dm = 1 V p-p/tone, fC = MHz ± MHz VO, dm = 1 V p-p/tone, fC = MHz ± MHz f = 100 kHz f = 100 kHz f = 100 MHz, ADA4930-2, RL = 200 Ω

VIP = VIN = VOCM = 0 V, RL = open circuit TMIN to TMAX

TMIN to TMAX

RF = RG = 10 kΩ, = V, RL = open circuit

Differential Common mode Common mode = V dc RF = RG = 10 kΩ, RL = open circuit

Each single-ended output RF = RG = 10 kΩ Each single-ended output f = 1 MHz, TDH 60 dBc f = 1 MHz

Min Typ

Max Unit
1430
2877

V/us
−98/−97 −91/−88 −79/−79 −73/−73 91 86 3 −90
dB dBc dB
−36 −24
mV uV/°C
−16 uA/C
uA dB
150 3 1 −82

V kΩ MΩ pF
−77 dB
30 55

V mA dB

ADA4930-1/ADA4930-2

Data Sheet

V VOCM TO VO, CM PERFORMANCE

Table Parameter VOCM DYNAMIC PERFORMANCE
ORDERING GUIDE

Model1 ADA4930-1YCPZ-R2 ADA4930-1YCPZ-RL ADA4930-1YCPZ-R7 ADA4930-1YCP-EBZ ADA4930-2YCPZ-R2 ADA4930-2YCPZ-RL ADA4930-2YCPZ-R7 ADA4930-2YCP-EBZ
1 Z = RoHS Compliant Part.

PIN 1 INDICATOR

SEATING PLANE

COMPLIANT TO JEDEC STANDARDS MO-220-WEED.

Figure 16-Lead Frame Chip Scale Package [LFCSP_WQ] 3 mm x 3 mm Body, Very Thin Quad CP-16-21 Dimensions shown in millimeters

EXPOSED PAD

PIN 1 INDICATOR

TOP VIEW

BOTTOM VIEW

MAX NOM

COPLANARITY

FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET.

COMPLIANT TO JEDEC STANDARDS MO-220-WGGD-8.

Figure 24-Lead Frame Chip Scale Package [LFCSP_WQ] 4 mm x 4 mm Body, Very Thin Quad CP-24-14 Dimensions shown in millimeters
01-18-2012-A

Temperature Range −40°C to +105°C −40°C to +105°C −40°C to +105°C
−40°C to +105°C −40°C to +105°C −40°C to +105°C

Package Description 16-Lead LFCSP_WQ 16-Lead LFCSP_WQ 16-Lead LFCSP_WQ Evaluation Board 24-Lead LFCSP_WQ 24-Lead LFCSP_WQ 24-Lead LFCSP_WQ Evaluation Board

Package Option CP-16-21 CP-16-21 CP-16-21
Ordering Quantity 250 5,000 1,500

CP-24-14 CP-24-14 CP-24-14
250 5,000 1,500

Branding H1G

Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.

D09209-0-1/15 B
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Datasheet ID: ADA4930-2YCPZ-R7 517801