ADC1212D series
Dual 12-bit ADC; 65 Msps, 80 Msps, 105 Msps or 125 Msps;
CMOS or LVDS DDR digital outputs
Rev. 03 — 2 July 2012
Product data sheet
1. General description
The ADC1212D is a dual channel 12-bit Analog-to-Digital Converter (ADC) optimized for
high dynamic performances and low power consumption at sample rates up to 125 Msps.
Pipelined architecture and output error correction ensure the ADC1212D is accurate
enough to guarantee zero missing codes over the entire operating range. Supplied from a
single 3 V source, it can handle output logic levels from 1.8 V to 3.3 V in
Complementary Metal Oxide Semiconductor (CMOS) mode, because of a separate digital
output supply. It supports the Low Voltage Differential Signalling (LVDS) Double Data Rate
(DDR) output standard. An integrated Serial Peripheral Interface (SPI) allows the user to
easily configure the ADC. The device also includes a programmable full-scale SPI to allow
a flexible input voltage range of 1 V (p-p) to 2 V (p-p). With excellent dynamic
performance from the baseband to input frequencies of 170 MHz or more, the ADC1212D
is ideal for use in communications, imaging and medical applications.
2. Features and benefits
SNR, 70 dBFS
SFDR, 86 dBc
Sample rate up to 125 Msps
Clock input divided by 2 to reduce jitter
contribution
Single 3 V supply
Flexible input voltage range:
1 V to 2 V (p-p)
CMOS or LVDS DDR digital outputs
Pin and software compatible with
ADC1412D series and ADC1112D125.
Input bandwidth, 600 MHz
Power dissipation, 855 mW at 80 Msps
Serial Peripheral Interface (SPI)
Duty cycle stabilizer
Fast OuT-of-Range (OTR) detection
Offset binary, two’s complement, gray
code
Power-down and Sleep modes
HVQFN64 package
3. Applications
Wireless and wired broadband
communications
Portable instrumentation
Imaging systems
Spectral analysis
Ultrasound equipment
Software defined radio
®
Integrated Device Technology
ADC1212D series
Dual 12-bit ADC: CMOS or LVDS DDR digital outputs
4. Ordering information
Table 1.
Ordering information
f
s
(Msps) Package
Name
ADC1212D125HN-C1 125
ADC1212D105HN-C1 105
ADC1212D080HN-C1 80
ADC1212D065HN-C1 65
Description
Version
SOT804-3
SOT804-3
SOT804-3
SOT804-3
HVQFN64 plastic thermal enhanced very thin quad flat package;
no leads; 64 terminals; body 9
9
0.85 mm
HVQFN64 plastic thermal enhanced very thin quad flat package;
no leads; 64 terminals; body 9
9
0.85 mm
HVQFN64 plastic thermal enhanced very thin quad flat package;
no leads; 64 terminals; body 9
9
0.85 mm
HVQFN64 plastic thermal enhanced very thin quad flat package;
no leads; 64 terminals; body 9
9
0.85 mm
Type number
5. Block diagram
SDIO/ODS
SCLK/DFS
CS
ADC1212D
ERROR
CORRECTION AND
DIGITAL
PROCESSING
SPI INTERFACE
OTRA
INAP
T/H
INPUT
STAGE
INAM
ADC CORE
12-BIT
PIPELINED
OUTPUT
DRIVERS
CMOS:
DA11 to DA0
or
LVDS/DDR:
DA10_DA11_P to DA0_DA1_P,
DA10_DA11_M to DA0_DA1_M
CMOS:
DAV
or
LVDS/DDR:
DAVP
DAVM
CMOS:
DB11 to DB0
or
LVDS/DDR:
DB10_DB11_P to DB0_DB1_P,
DB10_DB11_M to DB0_DB1_M
OTRB
CLKP
CLKM
CLOCK INPUT
STAGE AND DUTY
CYCLE CONTROL
OUTPUT
DRIVERS
INBP
T/H
INPUT
STAGE
INBM
ADC CORE
12-BIT
PIPELINED
OUTPUT
DRIVERS
ERROR
CORRECTION AND
DIGITAL
PROCESSING
SYSTEM
REFERENCE AND
POWER
MANAGEMENT
CTRL
REFBT
REFAB
REFAT
REFBB
VCMB
VCMA
SENSE VREF
005aaa128
Fig 1. Block diagram
ADC1212D_SER 3
© IDT 2012. All rights reserved.
Product data sheet
Rev. 03 — 2 July 2012
2 of 40
Integrated Device Technology
ADC1212D series
Dual 12-bit ADC: CMOS or LVDS DDR digital outputs
6. Pinning information
6.1 CMOS outputs selected
6.1.1 Pinning
62 SENSE
50 VDDO
terminal 1
index area
INAP
INAM
AGND
VCMA
REFAT
REFAB
AGND
CLKP
CLKM
1
2
3
4
5
6
7
8
9
49 VDDO
48 DA3
47 DA2
46 DA1
45 DA0
44 n.c.
43 n.c.
42 DAV
41 n.c.
40 n.c.
39 n.c.
38 DB0
37 DB1
36 DB2
35 DB3
34 DB4
33 DB5
VDDO 32
005aaa129
64 VDDA
61 VDDA
60 DECA
59 OTRA
63 VREF
57 DA10
58 DA11
56 DA9
55 DA8
54 DA7
53 DA6
DB8 28
52 DA5
DB7 29
ADC1212D
HVQFN64
AGND 10
REFBB 11
REFBT 12
VCMB 13
AGND 14
INBM 15
INBP 16
VDDA 17
VDDA 18
SCLK/DFS 19
SDIO/ODS 20
CS 21
CTRL 22
DECB 23
OTRB 24
DB11 25
DB10 26
DB9 27
DB6 30
VDDO 31
Transparent top view
Fig 2.
Pin configuration with CMOS digital outputs selected
6.1.2 Pin description
Table 2.
Symbol
INAP
INAM
AGND
VCMA
REFAT
REFAB
AGND
CLKP
CLKM
AGND
REFBB
REFBT
ADC1212D_SER 3
Pin description (CMOS digital outputs)
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Type
[1]
I
I
G
O
O
O
G
I
I
G
O
O
Description
analog input; channel A
complementary analog input; channel A
analog ground
common-mode output voltage; channel A
top reference; channel A
bottom reference; channel A
analog ground
clock input
complementary clock input
analog ground
bottom reference; channel B
top reference; channel B
© IDT 2012. All rights reserved.
Product data sheet
Rev. 03 — 2 July 2012
51 DA4
3 of 40
Integrated Device Technology
ADC1212D series
Dual 12-bit ADC: CMOS or LVDS DDR digital outputs
Table 2.
Symbol
VCMB
AGND
INBM
INBP
VDDA
VDDA
SCLK/DFS
SDIO/ODS
CS
CTRL
DECB
OTRB
DB11
DB10
DB9
DB8
DB7
DB6
VDDO
VDDO
DB5
DB4
DB3
DB2
DB1
DB0
n.c.
n.c.
n.c.
DAV
n.c.
n.c.
DA0
DA1
DA2
DA3
VDDO
VDDO
DA4
DA5
DA6
DA7
DA8
DA9
ADC1212D_SER 3
Pin description (CMOS digital outputs)
…continued
Pin
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
Type
[1]
O
G
I
I
P
P
I
I/O
I
I
O
O
O
O
O
O
O
O
P
P
O
O
O
O
O
O
-
-
-
O
-
-
O
O
O
O
P
P
O
O
O
O
O
O
Description
common-mode output voltage; channel B
analog ground
complementary analog input; channel B
analog input; channel B
analog power supply
analog power supply
SPI clock/data format select
SPI data input/output/output data standard
SPI chip select, active LOW
control mode select
regulator decoupling node; channel B
out-of-range; channel B
data output bit 11 (Most Significant Bit (MSB)); channel B
data output bit 10; channel B
data output bit 9; channel B
data output bit 8; channel B
data output bit 7; channel B
data output bit 6; channel B
output power supply
output power supply
data output bit 5; channel B
data output bit 4; channel B
data output bit 3; channel B
data output bit 2; channel B
data output bit 1; channel B
data output bit 0 (Least Significant Bit (LSB)); channel B
not connected
not connected
not connected
data valid output clock
not connected
not connected
data output bit 0 (LSB); channel A
data output bit 1; channel A
data output bit 2; channel A
data output bit 3; channel A
output power supply
output power supply
data output bit 4; channel A
data output bit 5; channel A
data output bit 6; channel A
data output bit 7; channel A
data output bit 8; channel A
data output bit 9; channel A
© IDT 2012. All rights reserved.
Product data sheet
Rev. 03 — 2 July 2012
4 of 40
Integrated Device Technology
ADC1212D series
Dual 12-bit ADC: CMOS or LVDS DDR digital outputs
Table 2.
Symbol
DA10
DA11
OTRA
DECA
VDDA
SENSE
VREF
VDDA
[1]
Pin description (CMOS digital outputs)
…continued
Pin
57
58
59
60
61
62
63
64
Type
[1]
O
O
O
O
P
I
I/O
P
Description
data output bit 10; channel A
data output bit 11 (MSB); channel A
out-of-range; channel A
regulator decoupling node; channel A
analog power supply
reference programming pin
voltage reference input/output
analog power supply
P: power supply; G: ground; I: input; O: output; I/O: input/output.
6.2 LVDS DDR outputs selected
6.2.1 Pinning
58 DA10_DA11_M
57 DA10_DA11_P
56 DA8_DA9_M
54 DA6_DA7_M
52 DA4_DA5_M
55 DA8_DA9_P
53 DA6_DA7_P
51 DA4_DA5_P
62 SENSE
50 VDDO
terminal 1
index area
INAP
INAM
AGND
VCMA
REFAT
REFAB
AGND
CLKP
CLKM
1
2
3
4
5
6
7
8
9
49 VDDO
48 DA2_DA3_M
47 DA2_DA3_P
46 DA0_DA1_M
45 DA0_DA1_P
44 n.c.
43 n.c.
42 DAVP
41 DAVM
40 n.c.
39 n.c.
38 DB0_DB1_P
37 DB0_DB1_M
36 DB2_DB3_P
35 DB2_DB3_M
34 DB4_DB5_P
33 DB4_DB5_M
VDDO 32
64 VDDA
61 VDDA
60 DECA
CS 21
59 OTRA
CTRL 22
63 VREF
ADC1212D
HVQFN64
AGND 10
REFBB 11
REFBT 12
VCMB 13
AGND 14
INBM 15
INBP 16
VDDA 17
VDDA 18
SCLK/DFS 19
SDIO/ODS 20
DECB 23
OTRB 24
DB10_DB11_M. 25
DB10_DB11_P 26
DB8_DB9_M 27
DB8_DB9_P 28
DB6_DB7_M 29
DB6_DB7_P 30
VDDO 31
Transparent top view
005aaa130
Fig 3.
Pin configuration with LVDS DDR digital outputs selected
ADC1212D_SER 3
© IDT 2012. All rights reserved.
Product data sheet
Rev. 03 — 2 July 2012
5 of 40
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