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LTC2228CUH#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28
LTC2228/LTC2227/LTC2226
1
222876fb
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
12-Bit, 65/40/25Msps
Low Power 3V ADCs
The LTC
®
2228/LTC2227/LTC2226 are 12-bit 65Msps/
40Msps/25Msps, low power 3V A/D converters designed
for digitizing high frequency, wide dynamic range signals.
The LTC2228/LTC2227/LTC2226 are perfect for demand-
ing imaging and communications applications with AC
performance that includes 71.3dB SNR and 90dB SFDR
for signals at the Nyquist frequency.
DC specs include ±0.3LSB INL (typ), ±0.15LSB DNL (typ)
and no missing codes over temperature. The transition
noise is a low 0.25LSB
RMS
.
A single 3V supply allows low power operation. A separate
output supply allows the outputs to drive 0.5V to 3.6V
logic.
A single-ended CLK input controls converter operation. An
optional clock duty cycle stabilizer allows high performance
at full speed for a wide range of clock duty cycles.
LTC2228: SNR vs Input Frequency,
–1dB, 2V Range, 65Msps
n
Sample Rate: 65Msps/40Msps/25Msps
n
Single 3V Supply (2.7V to 3.4V)
n
Low Power: 205mW/120mW/75mW
n
71.3dB SNR
n
90dB SFDR
n
No Missing Codes
n
Flexible Input: 1V
P-P
to 2V
P-P
Range
n
575MHz Full Power Bandwidth S/H
n
Clock Duty Cycle Stabilizer
n
Shutdown and Nap Modes
n
Pin Compatible Family
125Msps: LTC2253 (12-Bit), LTC2255 (14-Bit)
105Msps: LTC2252 (12-Bit), LTC2254 (14-Bit)
80Msps: LTC2229 (12-Bit), LTC2249 (14-Bit)
65Msps: LTC2228 (12-Bit), LTC2248 (14-Bit)
40Msps: LTC2227 (12-Bit), LTC2247 (14-Bit)
25Msps: LTC2226 (12-Bit), LTC2246 (14-Bit)
10Msps: LTC2225 (12-Bit), LTC2245 (14-Bit)
n
32-Pin (5mm × 5mm) QFN Package
n
Wireless and Wired Broadband Communication
n
Imaging Systems
n
Ultrasound
n
Spectral Analysis
n
Portable Instrumentation
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
–
+
INPUT
S/H
CORRECTION
LOGIC
OUTPUT
DRIVERS
12-BIT
PIPELINED
ADC CORE
CLOCK/DUTY
CYCLE
CONTROL
FLEXIBLE
REFERENCE
D11
•
•
•
D0
CLK
REFH
REFL
ANALOG
INPUT
222876 TA01
OV
DD
OGND
INPUT FREQUENCY (MHz)
0
SNR (dBFS)
70
71
200
2228 G09
69
68
50
100
150
72
LTC2228/LTC2227/LTC2226
2
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PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
DD
) ..................................................4V
Digital Output Ground Voltage (OGND) ........ –0.3V to 1V
Analog Input Voltage (Note 3) .......–0.3V to (V
DD
+ 0.3V)
Digital Input Voltage ......................–0.3V to (V
DD
+ 0.3V)
Digital Output Voltage ................ –0.3V to (OV
DD
+ 0.3V)
Power Dissipation .............................................1500mW
Operating Temperature Range
LTC2228C, LTC2227C, LTC2226C............. 0°C to 70°C
LTC2228I, LTC2227I, LTC2226I ............ –40°C to 85°C
Storage Temperature Range ................... –65°C to 125°C
OV
DD
= V
DD
(Notes 1, 2)
32 31 30 29 28 27 26 25
9 10 11 12
TOP VIEW
UH PACKAGE
32-LEAD (5mm s 5mm) PLASTIC QFN
13 14 15 16
17
18
19
20
21
22
23
24
8
7
6
5
4
3
2
1A
IN
+
A
IN
–
REFH
REFH
REFL
REFL
V
DD
GND
D8
D7
D6
OV
DD
OGND
D5
D4
D3
V
DD
V
CM
SENSE
MODE
OF
D11
D10
D9
CLK
SHDN
OE
NC
NC
D0
D1
D2
33
T
JMAX
= 125°C, θ
JA
= 34°C/W
EXPOSED PAD (PIN 33) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2228CUH#PBF LTC2228CUH#TRPBF 2228
32-Lead (5mm × 5mm) Plastic QFN
0°C to 70°C
LTC2228IUH#PBF LTC2228IUH#TRPBF 2228
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 85°C
LTC2227CUH#PBF LTC2227CUH#TRPBF 2227
32-Lead (5mm × 5mm) Plastic QFN
0°C to 70°C
LTC2227IUH#PBF LTC2227IUH#TRPBF 2227
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 85°C
LTC2226CUH#PBF LTC2226CUH#TRPBF 2226
32-Lead (5mm × 5mm) Plastic QFN
0°C to 70°C
LTC2226IUH#PBF LTC2226IUH#TRPBF 2226
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2228CUH LTC2228CUH#TR 2228
32-Lead (5mm × 5mm) Plastic QFN
0°C to 70°C
LTC2228IUH LTC2228IUH#TR 2228
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 85°C
LTC2227CUH LTC2227CUH#TR 2227
32-Lead (5mm × 5mm) Plastic QFN
0°C to 70°C
LTC2227IUH LTC2227IUH#TR 2227
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 85°C
LTC2226CUH LTC2226CUH#TR 2226
32-Lead (5mm × 5mm) Plastic QFN
0°C to 70°C
LTC2226IUH LTC2226IUH#TR 2226
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
LTC2228/LTC2227/LTC2226
3
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CONVERTER CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 4)
PARAMETER CONDITIONS
LTC2228 LTC2227 LTC2226
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
Resolution
(No Missing Codes)
l
12 12 12 Bits
Integral
Linearity Error
Differential Analog Input (Note 5)
l
–1.1 ±0.3 1.1 –1 ±0.3 1 –1 ±0.3 1 LSB
Differential
Linearity Error
Differential Analog Input
l
–0.8 ±0.15 0.8 –0.7 ±0.15 0.7 –0.7 ±0.15 0.7 LSB
Offset Error (Note 6)
l
–12 ±2 12 –12 ±2 12 –12 ±2 12 mV
Gain Error External Reference
l
–2.5 ±0.5 2.5 –2.5 ±0.5 2.5 –2.5 ±0.5 2.5 %FS
Offset Drift ±10 ±10 ±10 μV/°C
Full-Scale Drift Internal Reference ±30 ±30 ±30 ppm/°C
External Reference ±5 ±5 ±5 ppm/°C
Transition Noise SENSE = 1V 0.25 0.25 0.25 LSB
RMS
ANALOG INPUT
The l denotes the specifi cations which apply over the full operating temperature range, otherwise
specifi cations are at T
A
= 25°C. (Note 4)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Analog Input Range (A
IN
+
– A
IN
–
) 2.7V < V
DD
< 3.4V (Note 7)
l
±0.5V to ±1V V
V
IN,CM
Analog Input Common Mode (A
IN
+
+ A
IN
–
)/2 Differential Input (Note 7)
Single-Ended Input (Note 7)
l
l
1
0.5
1.5
1.5
1.9
2
V
V
I
IN
Analog Input Leakage Current 0V < A
IN
+
, A
IN
–
< V
DD
l
–1 1 μA
I
SENSE
SENSE Input Leakage 0V < SENSE < 1V
l
–3 3 μA
I
MODE
MODE Pin Leakage
l
–3 3 μA
t
AP
Sample-and-Hold Acquisition Delay Time 0 ns
t
JITTER
Sample-and-Hold Acquisition Delay Time Jitter 0.2 ps
RMS
CMRR Analog Input Common Mode Rejection Ratio 80 dB
Full Power Bandwidth Figure 8 Test Circuit 575 MHz
DYNAMIC ACCURACY
The l denotes the specifi cations which apply over the full operating temperature range,
otherwise specifi cations are at T
A
= 25°C. A
IN
= –1dBFS. (Note 4)
SYMBOL PARAMETER CONDITIONS
LTC2228 LTC2227 LTC2226
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
SNR Signal-to-Noise Ratio 5MHz Input 71.3 71.4 71.4 dB
12.5MHz Input
l
70.2 71.2 dB
20MHz Input
l
70.1 71.3 dB
30MHz Input
l
70 71.3 dB
70MHz Input 71.3 71.1 70.9 dB
140MHz Input 71 70.7 70.6 dB
SFDR Spurious Free
Dynamic Range
2nd or 3rd
Harmonic
5MHz Input 90 90 90 dB
12.5MHz Input
l
76 90 dB
20MHz Input
l
76 90 dB
30MHz Input
l
75 90 dB
70MHz Input 85 85 85 dB
140MHz Input 80 80 80 dB
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28

LTC2228CUH#TRPBF

Mfr. #:
Buy LTC2228CUH#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Analog to Digital Converters - ADC 12-B, 65Msps L Pwr 3V ADCs
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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