Complete 12-Bit 10 MSPS
a
SMD/883B
Scope
This specification covers the detail requirements for a complete monolithic 12-bit, 10 MSPS A/D converter with an on-chip, high performance track-and-hold amplifier (THA) and voltage reference. The
electrical specifications match the Standard Microcircuit Drawing (SMD) 5962-93060 in effect at the
release of this data sheet. For a copy of the latest official SMD, contact DESC-ELDS.
Part Number/Case Outline
For case outline dimensions, see Package Information Appendix of General Specification ADI-M-1000.
The complete part numbers of these SMD and 883 devices are as follows:
Device SMD ADI 883B Package Package Designation
Type Part Number Part Number Description ADI MIL-STD-1835
01 5962-9306001MXA AD872ASD/883B 28-Pin Side Brazed DIP D-28 CDIP2-T28
02 5962-9306002MYA AD872ASE/883B 44-Terminal LCC E-44A CQCCI-N44
Absolute Maximum Ratings
AV
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to +6.5 V
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −6.5 V to +0.5 V
AV
SS
DRV
DV
DD,
DRV
DD to DVDD
DRGND to DGND
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −1 V to +1 V
to DVDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −6.5 V to +6.5 V
AV
DD
Clock Input, OEN
Digital Outputs to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to DV
REF IN to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AV
V
, to V
INA
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to +150°C
Lead Temperature (Soldering 10 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C
2
to DGND, DRGND2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to +6.5 V
DD
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −6.5 V to +6.5 V
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to +0.3 V
2
to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to DVDD + 0.5 V
, REF IN to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −6.5 V to +6.5 V
INB
(TA = +25°C unless otherwise noted)
Monolithic A/D Converter
AD872A
1
+ 0.3 V
DD
to AV
SS
DD
Recommended Operating Conditions
2
Operating Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to +125°C
Thermal Characteristics
Thermal Resistance, Junction-to-Case (θJC) for D-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28°C/W
Thermal Resistance, Junction-to-Ambient (θ
Thermal Resistance, Junction-to-Case (θ
Thermal Resistance, Junction-to-Ambient (θ
NOTES
1
Permanent damage may occur if any absolute maximum rating is exceeded. Functional operation is not implied and device
reliability may be impaired by exposure to higher-than-recommended voltages for extended periods of time.
2
Device Type 02 only.
REV. B
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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
) for D-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W
JA
) for E-44A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20°C/W
JC
) for E-44A . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W
JA
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 1997
AD872A–SPECIFICA TIONS
Table 1. Electrical Performance Characteristics
Conditions
= +5 V, AVSS = –5 V,
AV
DD
= +5 V, DRVDD = +5 V Group A Device Limits
DV
DD
Test Symbol unless otherwise specified Subgroups Type Min Max Units
Resolution RES 1, 2, 3 01, 02 12 Bits
Differential Nonlinearity
Zero Error B
Gain Error A
Zero Error Drift TCB
Gain Error Drift TCA
Gain Error Drift TCA
Power Supply Rejection PSR See Note 2 1, 2, 3 01, 02 0.125 ±% FSR
Analog Input Range V
Input Resistance R
Input Capacitance C
Internal Reference Output Voltage V
Power Dissipation PD 1, 2, 3 01, 02 1.3 W
1
DNL All Codes Histogram 1, 2, 3 01, 02 12 Bits
POE
E
IN
IN
IN
REF
POE
INT
EXT
External 2.5 V Reference 2, 3 01, 02 0.30 ±% FSR
Internal 2.5 V Reference 2, 3 01, 02 1.75 ± % FSR
External 2.5 V Reference 2, 3 01, 02 0.5 ±% FSR
TA = +25°C 01, 02 50 typ kΩ
TA = +25°C 01, 02 10 typ pF
1 01, 02 0.75 ±% FSR
1 01, 02 1.25 ±% FSR
1, 2, 3 01, 02 1 ±V
1, 2, 3 01, 02 2.46 2.54 V
Power Supply Current IAV
DD
IAV
SS
IDV
IDRV
DD
DD
Signal-to-Noise and Distortion Ratio S/(N + D) f
Total Harmonic Distortion THD f
Logic Input High Voltage V
Logic Input Low Voltage V
Logic Input High Current (CLK) I
Logic Input Low Current (CLK) I
IH
IL
IH
IL
Logic Input High Current
(OEN, CLK) I
IH
Logic Input Low Current
(OEN, CLK) I
IL
Logic Output High Voltage
(MSB—Bit 12, OTR) V
OH
Logic Output Low Voltage
(MSB—Bit 12, OTR) V
Leakage I
Clock Period t
Output Delay t
OL
Z
C
OD
1, 2, 3 01, 02 92 mA
150
21
02 2
= 1 MHz; fS = 10 MHz 1, 2, 3 01 61 dB
IN
02 60
= 1 MHz; fS = 10 MHz 1, 2, 3 01 –62 dB
IN
02 –60
1, 2, 3 01, 02 2.0 V
1, 2, 3 01, 02 0.8 V
1, 2, 3 01 115 ±µA
1, 2, 3 01 115 ±µA
1, 2, 3 02 115 ±µA
1, 2, 3 02 115 ±µA
I
= 500 µA 1, 2, 3 01, 02 2.4 V
SOURCE
I
= 1.6 mA 1, 2, 3 01, 02 0.4 V
SINK
Three State 1, 2, 3 02 10 ±µA
See Figure 1. 9, 10, 11 01, 02 100 ns
See Figure 1. 9, 10, 11 01, 02 10 ns
NOTES
1
Minimum resolution for which “No Missing Codes” is guaranteed.
2
Test conditions for PSR: 4.75 V ≤ AVDD ≤ 5.25 V, –5.25 V ≤ AVSS ≤ –4.75 V, 4.75 V ≤ DVDD ≤ 5.25 V.
–2–
REV. B
SMD/883B
Functional Block Diagram and Terminal Assignment
AD872A
V
INA
V
INB
AV
AV
AGND
DGND
DV
(LSB) BIT 12
BIT 11
BIT 10
BIT 9
BIT 8
BIT 7
BIT 6
DV
SS
DACA/D
CORRECTION LOGIC
DGNDAV
DD
T/H A/D
OUTPUT BUFFERS
*MSBOTR
*DRV
AD872A
A/D
DAC
MSB-BIT 12 (LSB)
DD
*DRGND
12
V
INA
V
INB
CLOCK
REF IN
REF OUT
AV
AGND
DD
T/HT/H
A/D
DAC
4434
+2.5V
REFERENCE
REF GND
*ONLY AVAILABLE ON 44-PIN SURFACE MOUNT PACKAGE
*OUTPUT
ENABLE
D-28 Package E-44A Package
1
2
3
SS
4
DD
5
6
AD872A
7
TOP VIEW
DD
(Not to Scale)
8
9
10
11
12
13
14
NC = NO CONNECT
28
REF IN
27
REF GND
26
REF OUT
25
AV
24
AGND
23
DGND
22
DV
21
CLK
20
OTR
19
BIT 1 (MSB)
18
BIT 2
17
BIT 3
16
BIT 4
15
BIT 5
INA
(Not to Scale)
BIT 9
BIT 8
INB
V
AD872A
TOP VIEW
BIT 7
BIT 5
BIT 6
AVDDAVSSNCNCV
6 5 4 3 2 1 44 43 42 41 40
7
NC
8
SS
DD
NC
AGND
DGND
DRGND
DRV
DD
OEN
NC
NC
(MSB) BIT 12
BIT 11
NC = NO CONNECT
9
10
11
12
13
14
15
16
17
18 19 20 21 22 23 24 25 26 27 28
BIT 10
NC
REF IN
REF GND
PIN 1
IDENTIFIER
BIT 4
BIT 3
BIT 2
SS
REF OUT
AV
39
NC
38
AV
37
NC
36
AGND
35
NC
34
DRGND
33
DV
DRV
32
31
CLK
QTR
30
29
MSB
NC
( MSB) BIT 1
DD
DD
DD
CLOCK
BIT 2–12
MSB, OTR
REV. B
N
V
IN
N+1
t
C
t
CL
t
CH
DATA
IN
DATA
N+1
t
OD
Figure 1. Timing Diagram
SWITCHING SPECIFICATIONS
(
T
to T
MIN
with AVDD = +5 V, DVDD = +5 V, DRVDD =
MAX
+5 V, AVSS = –5 V; VIL = 0.8 V, VIH = 2.0 V. These characteristics
are included for design guidance only and are not tested or guaranteed.)
Parameter Symbol Limits Units
CLOCK Pulse Width High t
CLOCK Pulse Width Low t
CH
CL
45 ns min
45 ns min
Clock Duty Cycle 40 % min (50% typ)
60 % max
Pipeline Delay (Latency) 3 Clock Cycles
–3–
AD872A
Microcircuit Technology Group
This microcircuit is covered by technology group (93).
Life Test /Burn-In Circuit
Steady state life test is per MIL-STD-883 Method 1005. Burn-in is per MIL-STD-883 Method 1015 test
condition (B).
7V rms
–5V
60Hz
7V rms
60Hz
–5V
9kV
47mF 0.1mF
47mF
9kV
1kV
MR-280
0.1mF
1kV
NC
NC
NC
NC
NC
NC
NC
1
V
INA
2
V
INB
3
AV
SS
4
AV
DD
5
AGND
6
DGND
7
DV
DD
8
NC
MR-280
7
8
9
10
11
12
13
14
15
16
17
NC
NC
AGND
DGND
DRGND
DRV
OEN
NC
NC
BIT 12 (MSB)
BIT 11
BIT 12 (LSB)
9
NC
BIT 11
10
NC
BIT 10
11
BIT 9
NC
12
BIT 8
NC
13
NC
BIT 7
14
BIT 6
NC
NC NC
6 5 4 3 2 1 44 43 42 41 40
SS
NC
AVDDAV
DD
NC
AD872A
REF GND
REF OUT
(MSB) BIT 1
NC
INB
INA
V
V
AD872A
REF IN
AV
AGND
DGND
DV
CLK
OTR
BIT 2
BIT 3
BIT 4
BIT 5
NC
SS
DD
REF IN
REF GND
28
27
26
25
24
23
22
21
20
NC
19
NC
18
NC
17
NC
NC
16
NC
15
10mF
REF OUT
SS
AV
NC
AV
NC
AGND
NC
DRGND
DV
DRV
CLK
QTR
MSB
0.1mF
+5V
MR-280
47mF
10mF
C1945a–0–11/97
0-5V
1kHz
+5V
47mF
0.1mF
MR-280
NC
39
38
DD
NC
37
36
35
NC
34
33
DD
32
DD
31
30
NC
29
NC
0-5V
1kHz
0.225 (5.72)
MAX
0.200 (5.08)
0.125 (3.18)
BIT 10
18 19 20 21 22 23 24 25 26 27 28
NC NC NC NC NC NC NC NC NCNC NC
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
D-28
28-Lead Side Brazed DIP
0.100 (2.54) MAX0.005 (0.13) MIN
28
114
PIN 1
1.490 (37.85) MAX
0.026 (0.66)
0.014 (0.36)
0.110 (2.79)
0.090 (2.29)
15
0.070 (1.78)
0.030 (0.76)
0.610 (15.49)
0.500 (12.70)
0.060 (1.52)
0.015 (0.38)
0.150
(3.81)
MIN
SEATING
PLANE
0.620 (15.75)
0.590 (14.99)
0.018 (0.46)
0.008 (0.20)
BIT 9
BIT 8
BIT 7
BIT 6
BIT 5
BIT 2
BIT 1 ( MSB)
NC
BIT 4
BIT 3
NC = NO CONNECT
E-44A
44-Terminal Ceramic Leadless Chip Carrier
0.100 (2.54)
0.064 (1.63)
0.055 (1.40)
0.045 (1.14)
0.050
(1.27)
BSC
40
39
43
44
1
BOTTOM
VIEW
0.662 (16.82)
0.640 (16.27)
0.075 (1.91) REF
SQ
7
27
6
26
0.020 (0.51)
REF x 45°
0.028 (0.71)
0.022 (0.56)
0.040 (1.02)
REF x 45°
3 PLACES
PRINTED IN U.S.A.
REV. B–4–
Loading...