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AD1671JP

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
AD1671
(T
MIN
to T
MAX
with V
CC
= +5 V 6 5%, V
LOGIC
= +5 V 6 10%, V
EE
= –5 V 6 5%, f
SAMPLE
= 1 MSPS,
f
lNPUT
= 1OO kHz, unless otherwise noted)
1
AC SPECIFICATIONS
AD1671J/A/S AD1671K
Parameter Min Typ Max Min Typ Max Units
SIGNAL-TO-NOISE PLUS DISTORTION RATIO
(S/N + D)
–0.5 dB Input 68 70 68 71 dB
–20 dB Input 50 51 dB
EFFECTIVE NUMBER OF BITS (ENOB) 11.2 11.2 Bits
TOTAL HARMONIC DISTORTION (THD) –80 –75 –83 –75 dB
PEAK SPURIOUS OR PEAK HARMONIC COMPONENT –80 –77 –81 –77 dB
SMALL SIGNAL BANDWIDTH 12 12 MHz
FULL POWER BANDWIDTH 2 2 MHz
INTERMODULATION DISTORTION (IMD)
2
2nd Order Products –80 –75 –80 –75 dB
3rd Order Products –85 –75 –85 –75 dB
NOTES
1
f
IN
amplitude = –0.5 dB (9.44 V p-p) bipolar mode full scale unless otherwise indicated. All measurements referred to a 0 dB ( ±5 V) input signal, unless otherwise
indicated.
2
f
A
= 99 kHz, f
B
= 100 kHz with f
SAMPLE
= 1 MSPS.
Specifications subject to change without notice.
SWITCHING SPECIFICATIONS
Parameters Symbol Min Typ Max Units
Conversion Time t
C
800 ns
Sample Rate F
S
1.25 MSPS
ENCODE Pulse Width High (Figure 1a) t
ENC
20 50 ns
ENCODE Pulse Width Low (Figure 1b) t
ENCL
20 ns
DAV Pulse Width t
DAV
150 300 ns
ENCODE Falling Edge Delay t
F
0ns
Start New Conversion Delay t
R
0ns
Data and OTR Delay from DAV Falling Edge t
DD
1
20 75 ns
Data and OTR Valid before DAV Rising Edge t
SS
2
20 75 ns
NOTES
1
t
DD
is measured from when the falling edge of DAV crosses 0.8 V to when the output crosses 0.4 V or 2.4 V with a 25 pF load capacitor on each output pin.
2
t
SS
is measured from when the outputs cross 0.4 V or 2.4 V to when the rising edge of DAV crosses 2.4 V with a 25 pF load capacitor on each output pin.
Specifications subject to change without notice.
(For all grades T
MIN
to T
MAX
with V
CC
= +5 V 6 5%, V
LO61C
= +5 V 6 10%,
V
EE
= –5 V 6 5%; V
IL
= 0.8 V, V
IH
= 2.0 V, V
OL
= 0.4 V and V
OH
= 2.4 V)
ENCODE
DAV
DATA 0 (PREVIOUS)
DATA 1
C
t
DAV
t
DD
t
SS
t
t
F
t
R
t
ENCL
BIT 1–12
MSB, OTR
Figure 1b. Encode Pulse LOW
ENCODE
DAV
DATA 0 (PREVIOUS)
DATA 1
ENC
t
C
t
DAV
t
DD
t
SS
t
R
t
BIT 1–12
MSB, OTR
Figure 1a. Encode Pulse HIGH
REV. B
–3–
AD1671
REV. B
–4–
PIN DESCRIPTION
Symbol Pin No. Type Name and Function
ACOM 27 P Analog Ground.
AIN 22, 23 AI Analog Inputs, AIN1 and AIN2. The AD1671 can be pin strapped for four input ranges:
Range Pin Strap Signal Input
0 to +2.5 V, ±2.5 V Connect AIN1 to AIN2 AIN1 or AIN2
0 to +5 V, ±5 V Connect AIN1 or AIN2 to ACOM AIN1 or AIN2
BIT 1 (MSB) 13 DO Most Significant Bit.
BIT 2–BIT 11 12-3 DO Data Bits 2 through 11.
BIT 12 (LSB) 2 DO Least Significant Bit.
BPO/UPO 26 AI Bipolar or Unipolar Configuration Pin. See section on Input Range Connections for details.
DAV 16 DO Data Available Output. The rising edge of DAV indicates an end of conversion and can be used
to latch current data into an external register. The falling edge of DAV can be used to latch
previous dam into an external register.
DCOM 19 P Digital Ground.
ENCODE 17 DI The analog input is sampled on the rising edge of ENCODE.
MSB 14 DO Inverted Most Significant Bit. Provides twos complement output data format.
OTR 15 DO Out of Range is Active HIGH when the analog input is out of range. See Output Data Format,
Table III.
REF COM 20 AI REF COM is the internal reference ground pin. REF COM should be connected as indicated
in the Grounding and Decoupling Rules and Optional External Reference Connection Sections.
REF IN 24 AI REF IN is the external 2.5 V reference input.
REF OUT 21 AO REF OUT is the internal 2.5 V reference output.
SHA OUT 25 AO No Connect for bipolar input ranges. Connect SHA OUT to BPO/UPO for unipolar input ranges.
V
CC
28 P +5 V Analog Power.
V
EE
1 P –5 V Analog Power.
V
LOGIC
18 P +5 V Digital Power.
TYPE: AI = Analog Input; AO = Analog Output; DI = Digital Input; DO = Digital Outputs; P = Power.
PIN CONFIGURATION
ACOM
BPO/UPO
DCOM
ENCODE
DAV
OTR
MSB
BIT 12 (LSB)
BIT 11
BIT 10
BIT 9
BIT 8
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1 (MSB)
AIN1
REF COM
REF OUT
AIN2
SHA OUT
1
2
3
7
28
27
26
22
8
9
10
21
20
19
11
12
18
17
4
5
25
24
6
23
TOP VIEW
(Not to Scale)
13
14
16
15
AD1671
V
EE
V
CC
V
LOGIC
REF IN
AD1671
REV. B
–5–
ABSOLUTE MAXIMUM RATINGS*
Parameter With Respect to Min Max Units
V
CC
ACOM –0 5 +6.5 Volts
V
EE
ACOM –6.5 +0.5 Volts
V
LOGIC
DCOM –0.5 +6.5 Volts
ACOM DCOM –1.0 +1.0 Volts
V
CC
V
LOGIC
–6.5 +6.5 Volts
ENCODE DCOM –0.5 V
LOGIC
+ 0.5 Volts
REF IN ACOM –0.5 V
CC
+ 0.5 Volts
AIN ACOM –11.0 +11.0 Volts
BPO/UPO ACOM –0.5 V
CC
+ 0.5 Volts
Junction Temperature +150 °C
Storage Temperature –65 +150 °C
Lead Temperature (10 sec) +300 °C
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in
the operational sections of this specification is not implied. Exposure to absolute
maximum ratings for extended periods may effect device reliability.
WARNING!
ESD SENSITIVE DEVICE
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD1671 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
ORDERING GUIDE
Temperature Package
Model
1
Linearity Range Option
2, 3
AD1671JQ ±2.5 LSB 0°C to +70°C Q-28
AD1671KQ ±2 LSB 0°C to +70°C Q-28
AD1671JP ±2.5 LSB 0°C to +70°C P-28A
AD1671KP ±2 LSB 0°C to +70°C P-28A
AD1671AQ ±2.5 LSB –40°C to +85°C Q-28
AD1671AP ±2.5 LSB –40°C to +85°C P-28A
AD1671SQ ±3 LSB –55°C to +125°C Q-28
NOTES
1
For details on grade and package offerings screened in accordance with
MIL-STD-883, refer to Analog Devices’ Military Products Databook or
current AD1671/883 data sheet.
2
P = Plastic Leaded Chip Carrier, Q = Cerdip.
3
Analog Devices reserves the right to ship side brazed ceramic packages in
lieu of cerdip.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

AD1671JP

Mfr. #:
Buy AD1671JP
Manufacturer:
Analog Devices Inc.
Description:
Analog to Digital Converters - ADC 12-BIT 125 MSPS
Lifecycle:
New from this manufacturer.
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