ADA4927-1XCPZ [ADI]
IC LINE DRIVER, QCC16, 3 X 3 MM, ROHS COMPLIANT, MO-220VEED2, LFCSP-16, Line Driver or Receiver;
| 型号： | ADA4927-1XCPZ |
| 厂家： | 
ADI |
| 描述： | IC LINE DRIVER, QCC16, 3 X 3 MM, ROHS COMPLIANT, MO-220VEED2, LFCSP-16, Line Driver or Receiver 驱动 接口集成电路 驱动器 |
| 文件： | 总7页 (文件大小：188K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ultralow Distortion
Current Feedback ADC Driver
Preliminary Technical Data
ADA4927-1/ADA4927-2
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
Extremely low harmonic distortion
−117 dBc HD2 @ 10 MHz
−85 dBc HD2 @ 70 MHz
−75 dBc HD2 @ 100 MHz
−122 dBc HD3 @ 10 MHz
−95 dBc HD3 @ 70 MHz
−85 dBc HD3 @ 100 MHz
Better distortion at higher gains than VF amplifiers
Low input-referred noise: 1.3 nV/√Hz, 23 pA/√Hz
High speed
−3 dB large signal bandwidth of 1 GHz, G = 1
Slew rate: 6000 V/µs, 25% to 75%
0.1 dB gain flatness: 250 MHz
Figure 1.
Fast overdrive recovery of 2.6 ns
1 mV typical offset voltage
Externally adjustable gain
Differential-to-differential or single-ended-to-differential
operation
Adjustable output common-mode voltage
Single-supply or dual operation: 5 V to 5 V
Available in small, Pb-free LFCSP packages
APPLICATIONS
Current Feedback ADC drivers
Single-ended-to-differential converters
IF and baseband gain blocks
Differential buffers
Figure 2.
Line drivers
GENERAL DESCRIPTION
The ADA4927-1/ADA4927-2 are low noise, ultralow distortion,
high speed current feedback differential amplifiers that are ideal
choices for driving high performance ADCs with resolutions up
to 16 bits from dc to 100 MHz. The ADA4927-1/ADA4927-2
adjustable output common-mode levels can easily be matched
to the required ADC input common-mode levels. The internal
common-mode feedback loop provides exceptional output
balance and suppression of even-order distortion products.
consumption than comparable voltage feedback amplifiers.
The ADA4927-1/ADA4927-2 are fabricated using Analog
Devices, Inc. proprietary silicon-germanium (SiGe),
complementary bipolar process, enabling very low levels of
distortion with an input voltage noise of only 1.3 nV/√Hz. The
low dc offset and excellent dynamic performance of the
ADA4927-1/ADA4927-2 make them well suited for a wide
variety of data acquisition and signal processing applications.
Differential gain configurations are easily realized with the
ADA4927-1/ADA4927-2 using simple external feedback
networks comprised of four resistors. The current feedback
architecture provides loop gain that is nearly independent of
closed-loop gain, thus achieving wide bandwidth, low
distortion, and low noise at high gains, all at lower power
The ADA4927-1 is available in a Pb-free, 3 mm × 3 mm 16-lead
LFCSP and the ADA4927-2 in a Pb-free, 4 mm × 4 mm 24-lead
LFCSP. The pinouts have been optimized to facilitate PCB
layout and to minimize distortion. They are specified to operate
over the −40°C to +105°C temperature range.
Rev. PrB
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
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registeredtrademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
©2008 Analog Devices, Inc. All rights reserved.
ADA4927-1/ADA4927-2
Preliminary Technical Data
TABLE OF CONTENTS
Features .............................................................................................. 1
Revision History ................................................................................2
Specifications .....................................................................................3
Outline Dimensions..........................................................................7
Ordering Guide .............................................................................7
Applications....................................................................................... 1
Functional Block Diagrams............................................................. 1
General Description......................................................................... 1
REVISION HISTORY
Revision B: Edited From Advanced B
08/08
Rev. PrB | Page 2 of 7
Preliminary Technical Data
SPECIFICATIONS
ADA4927-1/ADA4927-2
VS = 5V, VOCM = 0V, RF = 348 Ω, RG = 367 Ω, RL, dm = 1 KΩ, @ 25°C, unless otherwise noted. TMIN to TMAX = −40°C to +85°C.
Table 1.
Parameter
Conditions
Min
Typ
Max
Unit
DIFFERENTIAL INPUT PERFORMANCE
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth
−3 dB Large Signal Bandwidth
Bandwidth for 0.1 dB Flatness
Slew Rate
VO, dm = 0.1 V p-p
VO, dm = 2 V p-p
VO, dm = 0.1 V p-p
VO, dm = 2 V Step
1400
1000
250
6000
2.6
MHz
MHz
MHz
V/µs
ns
Settling Time to 0.01%
VO, dm = 2 V Step
Overdrive Recovery Time
NOISE/HARMONIC PERFORMANCE
Second Harmonic
G = 2, VIN, dm = 12 V p-p Triangle Wave
ns
VOUT, dm = 2 VP-P, 10 MHz
VOUT, dm = 2 VP-P, 70 MHz
VOUT, dm = 2 VP-P, 100 MHz
VOUT, dm = 2 VP-P, 10 MHz
VOUT, dm = 2 VP-P, 70 MHz
VOUT, dm = 2 VP-P, 100 MHz
VO, dm = 2 V p-p, fC = 10.05 MHz 0.05 MHz
f = 100 KHz
-117
-85
-75
-122
-95
-85
dBc
dBc
dBc
dBc
dBc
dBc
dBc
nV/√Hz
pA/√Hz
Third Harmonic
Third-Order IMD
Input Voltage Noise
Input Current Noise
DC PERFORMANCE
1.3
23
f = 100 KHz
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Offset Current
Open-Loop Gain
VIP = VIN = VOCM = 0 V
TMIN to TMAX
TMIN to TMAX
1
5
30
4
mV
µV/ºC
µA
µA
dB
INPUT CHARACTERISTICS
Input Common-Mode Voltage Range
Input Resistance
V
Differential
kΩ
MΩ
pF
dB
Common Mode
Common Mode
∆VICM = 1 V dc
Input Capacitance
CMRR
OUTPUT CHARACTERISTICS
Output Voltage Swing
Each Single-Ended Output
Each Single-Ended Output,
V
V
R
L, dm = Open Circuit
Output Current
Output Balance Error
VOCM to VO, cm PERFORMANCE
VOCM DYNAMIC PERFORMANCE
−3 dB Bandwidth
Slew Rate
Each Single-Ended Output
f = 1 MHz
50
mA
dB
VO, cm = 0.1 V p-p
VO, cm = 2 V p-p
800
1
MHz
V/µs
V/V
Gain
VOCM INPUT CHARACTERISTICS
Input Voltage Range
Input Resistance
Input Offset Voltage
Input Voltage Noise
Input Bias Current
CMRR
V
MΩ
µV
nV/√Hz
µA
dB
VOS, cm = VO, cm − VOCM; VIP = VIN = VOCM = 0 V
f = 100 kHz
∆VOCM/∆VO, dm, ∆VOCM = 1 V
Rev. PrB | Page 3 of 7
ADA4927-1/ADA4927-2
Preliminary Technical Data
Parameter
Conditions
Min
Typ
Max
Unit
POWER SUPPLY
Operating Range
Quiescent Current
+PSRR
5
10
V
22
mA
dB
dB
°C
Change in +VS = 1V
Change in −VS = 1V
−PSRR
OPERATING TEMPERATURE RANGE
−40
+85
Rev. PrB | Page 4 of 7
Preliminary Technical Data
ADA4927-1/ADA4927-2
VS = +5V, VOCM = +2.5V, RF = 348 Ω, RG = 367 Ω, RL, dm = 1 KΩ, @ 25°C, unless otherwise noted. TMIN to TMAX = −40°C to +105°C.
Table 2.
Parameter
Conditions
Min
Typ
Max
Unit
DIFFERENTIAL INPUT PERFORMANCE
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth
−3 dB Large Signal Bandwidth
Bandwidth for 0.1 dB Flatness
Slew Rate
VO, dm = 0.1 V p-p
VO, dm = 2 V p-p
VO, dm = 0.1 V p-p
VO, dm = 2 V Step
MHz
MHz
MHz
V/μs
ns
Settling Time to 0.01%
VO, dm = 2 V Step
Overdrive Recovery Time
NOISE/HARMONIC PERFORMANCE
Second Harmonic
G = 2, VIN, dm = 7 V p-p Triangle Wave
ns
VOUT, dm = 2 VP-P, 10 MHz
VOUT, dm = 2 VP-P, 70 MHz
VOUT, dm = 2 VP-P, 100 MHz
VOUT, dm = 2 VP-P, 10 MHz
VOUT, dm = 2 VP-P, 70 MHz
VOUT, dm = 2 VP-P, 100 MHz
VO, dm = 2 V p-p, fC = 10.05 MHz 0.05 MHz
f = 100 kHz
dBc
dBc
dBc
dBc
dBc
dBc
dBc
nV/√Hz
pA/√Hz
Third Harmonic
Third-Order IMD
Input Voltage Noise
Input Current Noise
DC PERFORMANCE
f = 100 kHz
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
VIP = VIN = VOCM =0 V
TMIN to TMAX
TMIN to TMAX
µV
µV/ºC
μA
Input Offset Current
Open-Loop Gain
µA
dB
INPUT CHARACTERISTICS
Input Common-Mode Voltage Range
Input Resistance
V
Differential
KΩ
MΩ
pF
dB
Common-Mode
Common-Mode
ꢀVICM = 1 V dc
Input Capacitance
CMRR
OUTPUT CHARACTERISTICS
Output Voltage Swing
Each Single-Ended Output
Each Single-Ended Output,
RL, dm = Open Circuit
V
V
Output Current
Output Balance Error
VOCM to VO, cm PERFORMANCE
VOCM DYNAMIC PERFORMANCE
−3 dB Bandwidth
Slew Rate
Each Single-Ended Output
f = 1 MHz
mA
dB
VO, cm = 0.1 V p-p
VO, cm = 2 V p-p
MHz
V/μs
V/V
Gain
1
VOCM INPUT CHARACTERISTICS
Input Voltage Range
Input Resistance
Input Offset Voltage
Input Voltage Noise
Input Bias Current
CMRR
V
MΩ
mV
nV/√Hz
μA
VOS, cm = VO, cm − VOCM; VIP = VIN = VOCM = 2.5 V
f = 100 KHz
ꢀVOCM/ꢀVO(dm), ꢀVOCM = 1 V
dB
POWER SUPPLY
Rev. PrB | Page 5 of 7
ADA4927-1/ADA4927-2
Preliminary Technical Data
Parameter
Conditions
Min
Typ
Max
Unit
V
mA
dB
dB
°C
Operating Range
Quiescent Current
+PSRR
Change in +VS = 1 V
Change in −VS = 1 V
−PSRR
OPERATING TEMPERATURE RANGE
−40
+105
Rev. PrB | Page 6 of 7
Preliminary Technical Data
OUTLINE DIMENSIONS
ADA4927-1/ADA4927-2
0.50
0.40
0.30
3.00
BSC SQ
0.60 MAX
PIN 1
INDICATOR
*
1.45
1.30 SQ
1.15
13
12
16
1
0.45
PIN 1
INDICATOR
2.75
BSC SQ
TOP
VIEW
EXPOSED
PAD
(BOTTOM VIEW)4
9
0.50
BSC
8
5
0.25 MIN
1.50 REF
0.80 MAX
12° MAX
0.65 TYP
1.00
0.85
0.80
0.05 MAX
0.02 NOM
SEATING
PLANE
0.30
0.23
0.18
0.20 REF
*
COMPLIANT TO JEDEC STANDARDS MO-220-VEED-2
EXCEPT FOR EXPOSED PAD DIMENSION.
Figure 3. 16-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
3 mm × 3 mm Body, Very Thin Quad (CP-16-2)
Dimensions shown in millimeters
0.60 MAX
4.00
BSC SQ
0.60 MAX
PIN 1
INDICATOR
1
24
19
18
PIN 1
INDICATOR
0.50
BSC
2.25
TOP
VIEW
3.75
BSC SQ
EXPOSED
2.10 SQ
1.95
PAD
(BOTTOM VIEW)
0.50
0.40
0.30
6
13
12
7
0.25 MIN
0.80 MAX
0.65TYP
2.50 REF
1.00
0.85
0.80
12° MAX
0.05 MAX
0.02 NOM
0.30
0.23
0.18
COPLANARITY
0.08
0.20 REF
SEATING
PLANE
COMPLIANT TO JEDEC STANDARDS MO-220-VGGD-2
Figure 4. 24-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
4 mm × 4 mm Body, Very Thin Quad (CP-24-1)
Dimensions shown in millimeters
ORDERING GUIDE
Model
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
−40°C to +105°C
Package Description
16-Lead LFCSP_VQ
16-Lead LFCSP_VQ
16-Lead LFCSP_VQ
16-Lead LFCSP_VQ
24-Lead LFCSP_VQ
24-Lead LFCSP_VQ
24-Lead LFCSP_VQ
Package Option
CP-16-2
Ordering Quantity
Branding
ADA4927-1XCPZ1
ADA4927-1YCPZ-R21
ADA4927-1YCPZ-RL1
ADA4927-1YCPZ-R71
ADA4927-2YCPZ-R21
ADA4927-2YCPZ-RL1
ADA4927-2YCPZ-R71
H1M
CP-16-2
CP-16-2
CP-16-2
250
5,000
1,500
250
5,000
1,500
CP-24-1
CP-24-1
CP-24-1
1 Z = RoHS Compliant Part.
©2008 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
PR07574-0-7/08(PrB)
Rev. PrB | Page 7 of 7
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