Electrical Specifications Subject to Change
LTC2207/LTC2206
1
22076f
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
16-Bit, 105Msps/80Msps
ADCs
The LTC
®
2207/LTC2206 are 105Msps/80Msps, sampling
16-bit A/D converters designed for digitizing high fre-
quency, wide dynamic range signals up to input frequencies
of 700MHz. The input range of the ADC can be optimized
with the PGA front end.
The LTC2207/LTC2206 are perfect for demanding com-
munications applications, with AC performance that in-
cludes 78dB SNR and 100dB spurious free dynamic range
(SFDR). Ultralow jitter of 80fs
RMS
allows undersampling of
high input frequencies with excellent noise performance.
Maximum DC specs include ±4LSB INL, ±1LSB DNL (no
missing codes) over temperature.
A separate output power supply allows the CMOS output
swing to range from 0.5V to 3.3V.
The ENC
+
and ENC
inputs may be driven differentially
or single-ended with a sine wave, PECL, LVDS, TTL or
CMOS inputs. An optional clock duty cycle stabilizer al-
lows high performance at full speed with a wide range of
clock duty cycle.
Telecommunications
Receivers
Cellular Base Stations
Spectrum Analysis
Imaging Systems
ATE
Sample Rate: 105Msps/80Msps
78.2dBFs Noise Floor
100dB SFDR
SFDR >83dB at 250MHz (1.5V
P-P
Input Range)
PGA Front End (2.25V
P-P
or 1.5V
P-P
Input Range)
700MHz Full Power Bandwidth S/H
Optional Internal Dither
Optional Data Output Randomizer
Single 3.3V Supply
Power Dissipation: 900mW/650mW
Optional Clock Duty Cycle Stabilizer
Out-of-Range Indicator
Pin Compatible Family
105Msps: LTC2207 (16-Bit), LTC2207-14 (14-Bit)
80Msps: LTC2206 (16-Bit), LTC2206-14 (14-Bit)
48-Pin QFN Package
+
S/H
AMP
CORRECTION
LOGIC AND
SHIFT REGISTER
OUTPUT
DRIVERS
16-BIT
PIPELINED
ADC CORE
INTERNAL ADC
REFERENCE
GENERATOR
1.25V
COMMON MODE
BIAS VOLTAGE
CLOCK/DUTY
CYCLE
CONTROL
D15
·
·
·
D0
ENC
+
PGA
SHDN
DITH
MODE
OE
RAND
ENC
V
CM
ANALOG
INPUT
22054 TA01
0.5V TO 3.3V
3.3V
3.3V
SENSE
OGND
OV
DD
2.2
µF
1
µF
1
µF
1
µF
1
µF
V
DD
GND
ADC CONTROL INPUTS
AIN
+
AIN
OF
CLKOUT
+
CLKOUT
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
LTC2207/LTC2206
2
22076f
ABSOLUTE AXI U
RATI GS
W
W
W
U
FOR ATIO
PACKAGE/ORDER I
U
U
W
CO VERTER CHARACTERISTICS
U
PARAMETER CONDITIONS
MIN
TYP
MAX
UNITS
Resolution (No Missing Codes)
16
Bits
Integral Linearity Error
Differential Analog Input (Note 5)
±0.7 ±4 LSB
Differential Linearity Error
Differential Analog Input
±0.3 ±1 LSB
Offset Error
(Note 6)
±1 ±5
mV
Offset Drift
±10
V/
°C
Gain Error
External Reference
±0.2 ±1.0 %FS
Full-Scale Drift
Internal Reference
±30
ppm/°C
External Reference
±15
ppm/°C
Transition
Noise
2.8
LSB
RMS
Supply Voltage (V
DD
) ................................... 0.3V to 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 ............................................ 2000mW
Operating Temperature Range
LTC2207C/LTC2206C ............................... 0°C to 70°C
LTC2207I/LTC2206I ............................. v40°C to 85°C
Storage Temperature Range .................. 65°C to 150°C
Digital Output Supply Voltage (OV
DD
) .......... 0.3V to 4V
OV
DD
= V
DD
(Notes 1, 2)
The
denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 4)
TOP VIEW
UK PACKAGE
48-LEAD (7mm
× 7mm) PLASTIC QFN
SENSE
1
V
CM
2
V
DD
3
V
DD
4
GND 5
AIN+ 6
AIN
7
GND
8
ENC
+
9
ENC
10
GND 11
V
DD
12
36 OVP
35 D11
34 D10
33 D9
32 D8
31 OGND
30 CLKOUT+
29 CLKOUT
28 D7
27 D6
26 D5
25 OVP
48 GND
47 PGA
46 RAND
45 MODE
44 OE
43 OF
42 D15
41 D14
40 D13
39 D12
38 OGND
37 OVP
V
DD
13
V
DD
14
GND 15
SHDN 16
DITH
17
D0 18
D1
19
D2
20
D3 21
D4 22
OGND 23
OVP 24
49
EXPOSED PAD IS GND (PIN 49)
MUST BE SOLDERED TO PCB BOARD
T
JMAX
= 125°C,
JA
= 29°C/W
ORDER PART NUMBER
UK PART MARKING*
LTC2207CUK
LTC2206CUK
LTC2207IUK
LTC2206IUK
LTC2207UK
LTC2206UK
LTC2207UK
LTC2206UK
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult factory for parts specifi ed with wider operating temperature ranges.
*The temperature grade is identifi ed by a label on the shipping container.
LTC2207/LTC2206
3
22076f
A ALOG I PUT
U
U
The
denotes the specifi cations which apply over the full operating temperature range, otherwise
specifi cations are at T
A
= 25°C. (Note 4)
DY
A
IC ACCURACY
U
W
The
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
MIN
TYP
MAX
UNITS
V
IN
Analog
Input
Range
(A
IN
+
A
IN
)
3.135V V
DD
3.465V
1.5 to 2.25
V
P-P
V
IN, CM
Analog Input Common Mode
Differential Input (Note 7)
1 1.25 1.5
V
I
IN
Analog Input Leakage Current
0V A
IN
+
,
A
IN
V
DD
1
1
µA
I
SENSE
SENSE Input Leakage Current
0V SENSE
V
DD
1
1
µA
I
MODE
MODE Pin Pull-Down Current to GND
10
µA
C
IN
Analog Input Capacitance
Sample Mode ENC
+
< ENC
6.5
pF
Hold
Mode
ENC
+
> ENC
1.4
t
AP
Sample-and-Hold
0.7
ns
Acquisition
Delay
Time
t
JITTER
Sample-and-Hold
80
fs
RMS
Acquisition Delay Time Jitter
CMRR
Analog Input
1V < (A
IN
+
= A
IN
)
<1.5V
80 dB
Common Mode Rejection Ratio
BW-3dB Full
Power
Bandwidth
700
MHz
SYMBOL PARAMETER
CONDITIONS
MIN
LTC2206
TYP
MAX
MIN
LTC2207
TYP
MAX
UNITS
SNR
Signal-to-Noise Ratio
5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
77.9
75.5
77.9
75.5
dBFS
dBFS
25MHz Input (2.25V Range, PGA = 0)
25MHz Input (1.5V Range, PGA = 1)
TBD
77.8
75.4
TBD
77.8
75.4
dBFS
dBFS
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1)
77.5
75.3
77.5
75.3
dBFS
dBFS
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
TBD
76.7
74.8
TBD
76.7
74.8
dBFS
dBFS
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
76.2
75.4
76.2
75.4
dBFS
dBFS
SFDR
Spurious Free
Dynamic Range
2
nd
or 3
rd
Harmonic
5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
100
100
100
100
dB
dB
25MHz Input (2.25V Range, PGA = 0)
25MHz Input (1.5V Range, PGA = 1)
TBD
95
100
TBD
95
100
dB
dB
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1)
90
95
90
95
dB
dB
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
TBD
85
90
TBD
85
90
dB
dB
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
82
86
82
86
dB
dB
SFDR
Spurious Free
Dynamic Range
4
th
Harmonic
or Higher
5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
100
100
100
100
dB
dB
25MHz Input (2.25V Range, PGA = 0)
25MHz Input (1.5V Range, PGA = 1)
TBD
100
100
TBD
100
100
dB
dB
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1)
100
100
100
100
dB
dB
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
TBD
95
100
TBD
95
100
dB
dB
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
90
95
90
95
dB
dB
LTC2207/LTC2206
4
22076f
CO O
ODE BIAS CHARACTERISTICS
U
U
U
U
U
U
U
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
CM
Output Voltage
I
OUT
= 0
1.15
1.25
1.35
V
V
CM
Output Tempco
I
OUT
= 0
±100
ppm/°C
V
CM
Line Regulation
3.135V V
DD
3.465V
0.01
mV/ V
V
CM
Output Resistance
1mA | I
OUT
| 1mA
2
The
denotes the specifi cations which apply over the full operating temperature range,
otherwise specifi cations are at T
A
= 25°C. A
IN
= 1dBFS unless otherwise noted. (Note 4)
The
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
LTC2206
TYP
MAX
MIN
LTC2207
TYP
MAX
UNITS
S/(N+D)
Signal-to-Noise
Plus Distortion Ratio
5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
77.9
75.5
77.9
75.5
dBFS
dBFS
25MHz Input (2.25V Range, PGA = 0)
25MHz Input (1.5V Range, PGA = 1)
TBD
77.8
75.4
TBD
77.8
75.4
dBFS
dBFS
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1)
77.1
75.2
77.1
75.2
dBFS
dBFS
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
TBD
75.6
74.5
TBD
75.6
74.5
dBFS
dBFS
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
74.4
73.9
74.4
73.9
dBFS
dBFS
SFDR
Spurious Free
Dynamic Range
at 25dBFS
Dither "OFF"
5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
105
105
105
105
dBFS
dBFS
25MHz Input (2.25V Range, PGA = 0)
25MHz Input (1.5V Range, PGA = 1)
TBD
105
105
TBD
105
105
dBFS
dBFS
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1)
105
105
105
105
dBFS
dBFS
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
TBD
100
100
TBD
100
100
dBFS
dBFS
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
100
100
100
100
dBFS
dBFS
SFDR
Spurious Free
Dynamic Range
at 25dBFS
Dither "OFF"
5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
115
115
115
115
dBFS
dBFS
25MHz Input (2.25V Range, PGA = 0)
25MHz Input (1.5V Range, PGA = 1)
TBD
115
115
TBD
115
115
dBFS
dBFS
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1)
115
115
115
115
dBFS
dBFS
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
TBD
110
110
TBD
110
110
dBFS
dBFS
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
105
105
105
105
dBFS
dBFS
DY
A
IC ACCURACY
U
W
LTC2207/LTC2206
5
22076f
The
denotes the specifi cations which apply over the
full operating temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 4)
DIGITAL I PUTS A D DIGITAL OUTPUTS
U
U
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ENCODE INPUTS (ENC
+
, ENC
)
V
ID
Differential
Input
Voltage
0.2
V
V
ICM
Common Mode Input Voltage
Internally Set
1.6
V
Externally Set (Note 7)
1.4
3.0
R
IN
Input
Resistance
(See
Figure
2)
6 k
C
IN
Input Capacitance
(Note 7)
3
pF
LOGIC INPUTS (DITH, PGA, SHDN, RAND)
V
IH
High Level Input Voltage
V
DD
= 3.3V
2
V
V
IL
Low
Level
Input
Voltage V
DD
= 3.3V
0.8
V
I
IN
Digital
Input
Current
V
IN
= 0V to V
DD
±10
µA
C
IN
Digital Input Capacitance
(Note
7)
1.5
pF
LOGIC OUTPUTS
OV
DD
= 3.3V
V
OH
High Level Output Voltage
V
DD
= 3.3V
I
O
=
10µA
3.299
V
I
O
= 200µA
3.1 3.29
V
V
OL
Low
Level
Output
Voltage V
DD
= 3.3V
I
O
= 160µA
0.01
V
I
O
= 1.6mA
0.10
0.4
V
I
SOURCE
Output Source Current
V
OUT
=
0V
50 mA
I
SINK
Output Sink Current
V
OUT
=
3.3V
50 mA
OV
DD
= 2.5V
V
OH
High Level Output Voltage
V
DD
= 3.3V
I
O
= 200µA
2.49
V
V
OL
Low
Level
Output
Voltage V
DD
= 3.3V
I
O
=
1.60mA
0.1
V
OV
DD
= 1.8V
V
OH
High Level Output Voltage
V
DD
= 3.3V
I
O
= 200µA
1.79
V
V
OL
Low
Level
Output
Voltage V
DD
= 3.3V
I
O
=
1.60mA
0.1
V
POWER REQUIRE E TS
W
U
The
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 9)
SYMBOL PARAMETER
CONDITIONS
MIN
LTC2206
TYP
MAX
MIN
LTC2207
TYP
MAX
UNITS
V
DD
Analog Supply Voltage
3.135
3.3
3.465
3.315
3.3
3.465
V
P
SHDN
Shutdown Power
SHDN = V
DD
2
2
mW
OV
DD
Output Supply Voltage
0.5
V
DD
0.5
3.3
V
DD
V
I
VDD
Analog Supply Current
194
214
257
280
mA
P
DIS
Power Dissipation
640
705
850
940
mW
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