AD7671 - Analog Devices

16࿋Ă1 MSPS CMOS ADC
AD7671*
༬Ⴀ
ཾུଉ
1 MSPS(Warpఇ๕)
800 kSPS(ኟ‫׉‬ఇ๕)
INLǖፌ‫ٷ‬ኵ±2.5 LSB(஢ଉ‫ڦײ‬±0.0038%)
16࿋‫ݴ‬Ր୲Ă࿮฿ஓ
S/(N+D)ǖ90 dB(‫ۆ‬႙ኵLj250 kHz)
THDǖ–100 dB(‫ۆ‬႙ኵLj250 kHz)
ఇె๼෇‫ۉ‬უ‫ྷݔ‬
ມटႠǖ±10 Vñ5 Vñ2.5 V
‫ڇ‬टႠǖ0 V዁10 VĂ0 V዁5 VĂ0 V዁2.5 V
঍ୁࢅ኱ୁଇዖࡀ߭
࿮ୁ຤၍ჽ‫׿‬
ժႜ(8/16࿋)ࢅ‫ز‬ႜ5 V/3 Vথ੨
SPI®/QSPI™/MICROWIRE™/DSPग़ඹ
֑ᆩ5 V‫ۉڇ‬ᇸࠃ‫ۉ‬
ࠀࡼ
‫ۆ‬႙ኵྺ112 mW
100 SPS้ྺ15 μW
ู‫ۉ‬ఇ๕ǖ7 μW(ፌ‫ٷ‬ኵ)
‫ހ‬ጎǖ48ᆅগ຺‫ݛ‬Ռೝ‫ހ‬ጎ(LQFP)
‫ހ‬ጎǖ48ᆅগႊೌप‫ހ‬ጎ(LFCSP)
AD7665/AD7664‫ڦ‬ᆅগग़ඹืपഗॲ
ᆌᆩ
ຕ਍֑ण
ཚ႑
ᅏഗᅏ՗
ೕ೷‫ݴ‬ဆ
ᅅଐᅏഗ
ࡗ‫ײ‬੦዆
߁ຎ
AD7671๟ᅃ੼16࿋Ă1 MSPSĂ‫ࢁۉ‬ዘ‫ݴ‬ದSAR႙ఇຕገ࣑
ഗ(ADC)Lj֑ᆩ5 V‫ۉڇ‬ᇸࠃ‫ۉ‬ă໲ాዃᅃ߲ߛ໏16࿋֑ᄣ
ADCĂᅃ߲ᆩᅜۙኝ๼෇‫ۉڦྷݔ‬ፆۨՔഗĂᅃ߲ాևገ
้࣑ዓĂৰ‫ۉٱ‬ୟLjᅜत‫ز‬ႜࢅժႜဣཥথ੨ă
AD7671ঢ়ࡗ‫׍؜‬ᆘॲၯጚࢅඇ௬֪๬Lj੗ඓԍ‫أ‬ᅃӯ኱ୁ
֖ຕ(ሺᅮĂೋዃࢅ၍Ⴀ‫)܈‬ኮྔLjዮස႑ሯԲ(SNR)ࢅጺၿ
հ฿ኈ(THD)‫ڪ‬঍ୁ֖ຕᄺࢇࢭᄲ൱ă
໲ਏᆶෙዖ֑ᄣఇ๕ǖटߛ֑ᄣ໏୲ఇ๕(Warpఇ๕)Ǘ੺
໏ఇ๕(ኟ‫׉‬ఇ๕)Lj๢ᆩᇀᅴօገ࣑୲ᆌᆩǗ‫ࡼࠀگ‬ఇ๕
(ஞ؋ఇ๕)Lj๢ᆩᇀ‫ࡼࠀگ‬ᆌᆩLjഄࠀࡼᇑཾུଉ‫װ‬Բ૩
࠲ဣă
*ጆ૧ኟሞฤ൩ዐ
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
ࠀీ઀཮
AVDD AGND REF REFGND
IND(4R)
INC(4R)
INB(2R)
INA(R)
4R
DVDD
DGND
AD7671
OVDD
4R
2R
SERIAL
PORT
R
SWITCHED
CAP DAC
INGND
OGND
SER/PAR
BUSY
PARALLEL 16
INTERFACE
CLOCK
PD
RESET
D[15:0]
CS
RD
CONTROL LOGIC AND
CALIBRATION CIRCUITRY
OB/2C
BYTESWAP
WARP
IMPULSE
CNVST
PulSAR჋ስ
ૌ႙/kSPS
100–250
500–570
࿁ֶ‫ݴ‬
AD7660
AD7650
AD7664
ኈມटႠ
AD7663
AD7665
AD7671
ኈֶ‫ݴ‬
AD7675
AD7676
AD7677
18࿋
AD7678
AD7679
AD7674
AD7654
AD7655
ཞօ/‫ܠ‬ཚ‫ڢ‬
800–1000
޿ഗॲ֑ᆩADIࠅິ‫ڦ‬0.6ྲ௝ߛႠీCMOS߾ᅝ዆ሰLj༵
ࠃ48ᆅগLQFPࢅ48ᆅগၭ႙LFCSPଇዖ‫ހ‬ጎLj߾ፕ࿒‫ݔ܈‬
ྷྺ–40°C዁+85°Că
ׂ೗਋ঋ
1.
2.
3.
4.
!
ߛཾུଉ
AD7671๟ᅃ੼टߛ໏(Warpఇ๕ူྺ1 MSPSLjኟ‫׉‬ఇ
๕ူྺ800 kSPS)Ă‫ࢁۉ‬ም‫ݴ‬ದĂ16࿋SAR႙ADCă
‫ۉڇ‬ᇸࠃ‫ۉ‬
AD7671֑ᆩ5 V‫ۉڇ‬ᇸࠃ‫ۉ‬Lj‫ۆ‬႙ࠀࡼৈ112 mWǗሞ
‫ࡼࠀگ‬ఇ๕(ஞ؋ఇ๕)ࢅู‫ۉ‬ఇ๕ူ๑ᆩড‫ུཾڦگ‬
ଉ้Ljࠀࡼ߸‫گ‬ă
‫؜‬෥‫ڦ‬ओ‫ݥݴ‬၍Ⴀ(INL)
AD7671‫ڦ‬ፌ‫ٷ‬ओ‫ݥݴ‬၍Ⴀྺ2.5 LSBLj༵ࠃ16࿋‫ݴ‬Ր୲Lj
࿮฿ஓă
‫ز‬ႜईժႜথ੨
‫ీࠀܠ‬ժႜ(8࿋ई16࿋)ईມ၍‫ز‬ႜথ੨ದዃLj3 Vई5 V
இडग़ඹă
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© 2003 Analog Devices, Inc. All rights reserved.
ADIዐ࿔Ӳຕ਍๮֩๟ᆈ࿔Ӳຕ਍๮֩‫ڦ‬ᅳ࿔Lj৤൩ଌ঴‫݋‬ᅳዐ੗ీ٪ሞ‫ڦ‬ᇕჾፇኯई‫݋‬ᅳ‫ٱ‬ဃLjADIփ‫݋ܔ‬ᅳዐ٪ሞ‫ֶڦ‬ᅴईᆯׂُิ‫ٱڦ‬ဃ޶ሴăසႴඓණඪࢆَᇕ‫ڦ‬ጚඓႠLj൩֖੊ADI༵ࠃ
‫ڦ‬ፌႎᆈ࿔Ӳຕ਍๮֩ă
AD7671
रຍࡀ߭
(‫ݥأ‬ଷᆶຫ௽Lj–40°C዁+85°CLjAVDD = DVDD = 5 VLjOVDD = 2.7 V዁5.25 V)
֖ຕ
ཉॲ
ፌၭኵ
‫ݴ‬Ր୲
ఇె๼෇
‫ۉ‬უ‫ྷݔ‬
ࠌఇ๼෇‫ۉ‬უ
ఇె๼෇CMRR
๼෇ፆੇ
ཾུ໏‫܈‬
ྜኝዜ೺
ཾུ໏୲
ገ࣑क़้߰क़
ྜኝዜ೺
ཾུ໏୲
ྜኝዜ೺
ཾུ໏୲
኱ୁ৛‫܈‬
ओ‫ݥݴ‬၍Ⴀဃֶ
࿮฿ஓ
ሂദሯำ
ມटႠଭဃֶ2LjTMIN዁TMAX
ມटႠ஢ଉ‫ײ‬ဃֶ2LjTMIN዁TMAX
‫ڇ‬टႠଭဃֶ2LjTMIN዁TMAX
‫ڇ‬टႠ஢ଉ‫ײ‬ဃֶ2LjTMIN዁TMAX
‫ۉ‬ᇸଳ௺‫܈‬
঍ୁ৛‫܈‬
႑ሯԲ
࿮ሗො‫ۯ‬ༀ‫ྷݔ‬
ጺၿհ฿ኈ
႑భԲ
VIND – VINGND
VINGND
fIN = 100 kHz
Warpఇ๕
Warpఇ๕
Warpఇ๕
ኟ‫׉‬ఇ๕
ኟ‫׉‬ఇ๕
ஞ؋ఇ๕
ஞ؋ఇ๕
‫ۆ‬႙ኵ
࿋
±4 REFLj0 V዁4 REFLj±2 REF(९՗I)
–0.1
+0.5
74
९՗I
V
dB
1
0
0
1
1000
1
1.25
800
1.5
666
μs
kSPS
ms
μs
kSPS
μs
kSPS
+2.5
LSB1
࿋
LSB
LSB
0.7
± 5 V‫ྷݔ‬Lj
ኟ‫׉‬ईஞ؋ఇ๕
ഄ໲‫ྷݔ‬ईఇ๕
–45
+45
–0.1
–0.38
–0.18
–0.76
+0.1
+0.38
+0.18
+0.76
AVDD = 5 V ± 5%
fIN = 20 kHz
fIN = 250 kHz
fIN = 250 kHz
fIN = 20 kHz
fIN = 250 kHz
fIN = 20 kHz
fIN = 250 kHzLj–60 dB๼෇
89
88.5
–3 dB๼෇‫੻ټ‬
஢ଉ‫ײ‬঩ሂ
एጚ‫ۉ‬უ
ྔևएጚ‫ۉ‬უ‫ྷݔ‬
ྔևएጚࡼᆩ‫ୁۉ‬
1 MSPSཾུଉ
±9.5
FSR‫ڦ‬%
FSR‫ڦ‬%
FSR‫ڦ‬%
FSR‫ڦ‬%
LSB
90
90
100
–100
–100
90
30
9.6
dB3
dB
dB
dB
dB
dB
dB
MHz
–96
2
5
250
2.3
ຕጴ๼෇
இड‫ۉ‬ೝ
VIL
VIH
IIL
IIH
2.5
200
–0.3
+2.0
–1
–1
ຕጴ๼‫؜‬
ຕ਍߭๕
ୁ຤၍ჽ‫׿‬
‫ڇ‬࿋
16
–2.5
16
֑ᄣ‫ۯ‬ༀႠీ
੥০ჽ‫׿‬
੥০۶‫ۯ‬
ຨༀၚᆌ
VOL
VOH
ፌ‫ٷ‬ኵ
ns
ps rms
ns
AVDD – 1.85
V
μA
+0.8
DVDD + 0.3
+1
+1
V
V
μA
μA
ժႜई‫ز‬ႜ16࿋
ገ࣑ྜ‫ࢫׯ‬૬न༵ࠃገ࣑঳ࡕ
ISINK = 1.6 mA
ISOURCE = –570 mA
Rev. B | Page 2 of 24
0.4
OVDD – 0.6
V
V
AD7671
֖ຕ
ཉॲ
‫ۉ‬ᇸ
‫ۨܮ‬Ⴀీ
AVDD
DVDD
OVDD
߾ፕ‫ୁۉ‬5
AVDD
DVDD6
OVDD6
ࠀࡼ6, 7
ፌၭኵ
‫ۆ‬႙ኵ
ፌ‫ٷ‬ኵ
‫ڇ‬࿋
4
4
2
5
5
5.25
5.25
5.254
V
V
V
95
125
7
mA
mA
μA
mW
μW
mW
μW
+85
1 MSPSཾུଉ
15
7.2
37
84
15
112
666 kSPSཾུଉ8
100 SPSཾུଉ8
1 MSPSཾུଉ5
ู‫ۉ‬ఇ๕9
࿒‫ྷݔ܈‬10
‫ۨܮ‬Ⴀీ
TMIN዁TMAX
–40
ጀ๥
1
LSB՗๖ፌ‫گ‬ᆶၳ࿋ă±5 V๼෇‫้ྷݔ‬Lj1 LSB = 152.588 μVă
2
֖९༬Ⴀۨᅭև‫ݴ‬ăኄၵ༬ႠփԈઔྔևएጚ‫ۉ‬უ‫ڦ‬ဃֶࠋ၅ă
3
໯ᆶᅜdBྺ‫ڇ‬࿋‫ڦ‬༬Ⴀ਩֖੊஢ଉ‫ײ‬๼෇FSă‫ݥأ‬ଷᆶຫ௽Lj֪๬ཉॲྺ๼෇႑ࡽԲ஢ଉ‫گײ‬0.5 dBă
4
ፌ‫ٷ‬ኵྺ5.25 VࢅDVDD + 0.3 Vܾኁዐ‫ڦ‬ডၭኁă
5
:DUS῵ᓣDŽ
6
ሞժႜ‫܁‬ൽఇ๕ူ৊ႜ֪๬ă
7
ሞ0 V዁5 V‫ࢅྷݔ‬VIN – VINGND = 0 Vူ৊ႜ֪๬ă֖९ࠀࡼև‫ݴ‬ă
8
㛝‫ކ‬῵ᓣDŽ
9
OVDD‫گ‬ᇀDVDD + 0.3 VLj໯ᆶຕጴ๼෇ഽ዆૶‫ڟ‬DVDDईDGNDă
10
සႴ߸੻࿒‫ྷݔ܈‬Lj൩૴ဣADIࠅິă
ࡀ߭සᆶՎ߸ທփଷႜཚኪă
՗I. ఇె๼෇ದዃ
๼෇‫ۉ‬უ‫ྷݔ‬
±4 REF2
±2 REF
±REF
0 V to 4 REF
0 V to 2 REF
0 V to REF
IND(4R)
INC(4R)
INB(2R)
INA(R)
๼෇ፆੇ1
V IN
V IN
V IN
V IN
V IN
V IN
INGND
V IN
V IN
V IN
V IN
V IN
INGND
INGND
V IN
INGND
V IN
V IN
REF
REF
REF
INGND
INGND
V IN
1.63 kW
948 W
711 W
948 W
711 W
ጀ๥3
ጀ๥
1
‫ۆ‬႙ఇె๼෇ፆੇă
2
REF = 3 V้Ljሞُ‫ాྷݔ‬Lj๼෇ᆌ၌዆ሞ–11 V዁+12 Vă
3
‫ܔ‬ᇀُ‫ྷݔ‬Lj๼෇ྺߛፆੇă
้Ⴞࡀ߭ (‫ݥأ‬ଷᆶຫ௽Lj–40°C዁+85°CLjAVDD = DVDD = 5 VLjOVDD = 2.7 V዁5.25 V)
֖ຕ
֖੊཮11ࢅ཮12
ገ࣑ஞ؋੻‫܈‬
ገ࣑क़้߰क़
(Warpఇ๕/ኟ‫׉‬ఇ๕/ஞ؋ఇ๕)
CNVST ‫ۉگ‬ೝ‫ڟ‬BUSYߛ‫ۉ‬ೝჽ‫้׿‬क़
BUSYߛ‫ۉ‬ೝLjገ࣑ኮࢫዷऐ‫ز‬ႜ‫܁‬ൽఇ๕‫ڦྔأ‬໯ᆶఇ๕
(Warpఇ๕/ኟ‫׉‬ఇ๕/ஞ؋ఇ๕)
੥০ჽ‫׿‬
ገ࣑঳ຐ‫ڟ‬BUSY‫ۉگ‬ೝჽ‫้׿‬क़
ገ้࣑क़(Warpఇ๕/ኟ‫׉‬ఇ๕/ஞ؋ఇ๕)
֑ण้क़
RESETஞ؋੻‫܈‬
‫ࡽޙ‬
ፌၭኵ
t1
t2
5
1/1.25/1.5
‫ۆ‬႙ኵ
t3
t4
t5
t6
t7
t8
t9
Rev. B | Page 3 of 24
ፌ‫ٷ‬ኵ
‫ڇ‬࿋
ጀ๥1
ns
μs
30
0.75/1/1.25
ns
μs
0.75/1/1.25
ns
ns
μs
ns
ns
2
10
250
10
AD7671
้Ⴞࡀ߭ (Ⴤ)
‫ࡽޙ‬
֖ຕ
֖੊཮13Ă14Ă15Ă16(ժႜথ੨ఇ๕)
CNVST‫ۉگ‬ೝ‫ڟ‬DATAᆶၳჽ‫้׿‬क़
(Warpఇ๕/ኟ‫׉‬ఇ๕/ஞ؋ఇ๕)
DATAᆶၳ‫ڟ‬BUSY‫ۉگ‬ೝჽ‫้׿‬क़
ጺ၍‫ݡ‬࿚൩൱‫ڟ‬DATAᆶၳ
ጺ၍๥‫้ݣ‬क़
ፌၭኵ
‫ۆ‬႙ኵ
t10
‫ڇ‬࿋
0.75/1/1.25
μs
40
15
ns
ns
ns
20
t11
t12
t13
֖੊཮17Ă18(ዷऐ‫ز‬ႜথ੨ఇ๕)
CS‫ۉگ‬ೝ‫ڟ‬SYNCᆶၳჽ‫้׿‬क़
CS‫ۉگ‬ೝ‫ాڟ‬ևSCLKᆶၳჽ‫้׿‬क़
CS‫ۉگ‬ೝ‫ڟ‬SDOUTჽ‫้׿‬क़
CNVST‫ۉگ‬ೝ‫ڟ‬SYNCჽ‫้׿‬क़(ገ࣑೺क़‫܁‬ൽ)
(Warpఇ๕/ኟ‫׉‬ఇ๕/ஞ؋ఇ๕)
SYNCዃ࿋‫ڟ‬SCLK‫ڼ‬ᅃ߲ᄂჽ‫้׿‬क़3
ాևSCLKዜ೺3
ాևSCLKߛ‫ۉ‬ೝ3
ాևSCLK‫ۉگ‬ೝ3
SDOUTᆶၳยዃ้क़3
SDOUTᆶၳԍ‫้׼‬क़3
SCLKፌࢫᅃ߲ᄂ‫ڟ‬SYNCჽ‫้׿‬क़3
CSߛ‫ۉ‬ೝ‫ڟ‬SYNCߛፆༀ
CSߛ‫ۉ‬ೝ‫ాڟ‬ևSCLKߛፆༀ
CSߛ‫ۉ‬ೝ‫ڟ‬SDOUTߛፆༀ
BUSYߛ‫ۉ‬ೝ(ገ࣑ኮࢫዷऐ‫ز‬ႜ‫܁‬ൽ)3
CNVST‫ۉگ‬ೝ‫ڟ‬SYNCዃ࿋ჽ‫้׿‬क़
(Warpఇ๕/ኟ‫׉‬ఇ๕/ஞ؋ఇ๕)
ገ࣑ኮࢫዷऐ‫ز‬ႜ‫܁‬ൽ
SYNC঴‫أ‬ዃ࿋‫ڟ‬BUSY‫ۉگ‬ೝჽ‫้׿‬क़
ፌ‫ٷ‬ኵ
5
2
t14
t15
t16
t17
10
10
10
25/275/525
t18
t19
t20
t21
t22
t23
t24
t25
t26
t27
t28
t29
4
25
15
9. 5
4. 5
2
3
ns
ns
ns
ns
ns
ns
40
10
10
10
t30
֖੊཮19Ă21(ٗऐ‫ز‬ႜথ੨ఇ๕)
ྔևSCLKยዃ้क़
ྔևSCLKᆶၳᄂ‫ڟ‬SDOUTჽ‫้׿‬क़
SDINยዃ้क़
SDINԍ‫้׼‬क़
ྔևSCLKዜ೺
ྔևSCLKߛ‫ۉ‬ೝ
ྔևSCLK‫ۉگ‬ೝ
ns
ns
ns
ns
९՗II
0.75/1/1.25
ns
ns
ns
μs
μs
25
ns
5
3
5
5
25
10
10
t31
t32
t33
t34
t35
t36
t37
ns
ns
ns
ns
ns
ns
ns
16
ጀ๥
1
ৈWarpఇ๕ူLjገ࣑क़้߰क़ፌ‫ྺ׊‬1 msǗഄ໲ఇ๕ူ࿮ፌ‫้׊‬क़ᄲ൱ă
2
‫ز‬ႜথ੨ఇ๕ူLjSYNCĂSCLKࢅSDOUT้Ⴞሞፌ‫ٷ‬10 pF‫޶ڦ‬ሜCLူ৊ႜۨᅭǗഄ໲൧઄ူLj޶ሜፌ‫ٷ‬ኵྺ60 pFă
3
ገ࣑೺क़‫ز‬ႜዷऐ‫܁‬ൽఇ๕ăገ࣑ኮࢫዷऐ‫܁‬ൽఇ๕९՗IIă
ࡀ߭සᆶՎ߸ທփଷႜཚኪă
՗II. ገ࣑ኮࢫዷऐ‫܁‬ൽఇ๕‫زڦ‬ႜ้ዓ้Ⴞ
DIVSCLK[1]
DIVSCLK[0]
SYNC‫ڟ‬SCLK‫ڼ‬ᅃ߲ᄂჽ‫้׿‬क़ፌၭኵ
ాևSCLKዜ೺ፌၭኵ
ాևSCLKዜ೺ፌ‫ٷ‬ኵ
ాևSCLKߛ‫ۉ‬ೝፌၭኵ
ాևSCLK‫ۉگ‬ೝፌၭኵ
SDOUTᆶၳยዃ้क़ፌၭኵ
SDOUTᆶၳԍ‫้׼‬क़ፌၭኵ
SCLKፌࢫᅃ߲ᄂ‫ڟ‬SYNCჽ‫้׿‬क़ፌၭኵ
BUSYߛ‫ۉ‬ೝ੻‫܈‬ፌ‫ٷ‬ኵ(Warpఇ๕)
BUSYߛ‫ۉ‬ೝ੻‫܈‬ፌ‫ٷ‬ኵ(ኟ‫׉‬ఇ๕)
BUSYߛ‫ۉ‬ೝ੻‫܈‬ፌ‫ٷ‬ኵ(ஞ؋ఇ๕)
t18
t19
t19
t20
t21
t22
t23
t24
t28
t28
t28
0
0
0
1
1
0
4
25
40
15
9
4.5
2
3
1.5
1.75
2
20
50
70
25
24
22
4
60
2
2.25
2.5
20
100
140
50
49
22
30
140
3
3.25
3.5
ࡀ߭සᆶՎ߸ທփଷႜཚኪă
Rev. B | Page 4 of 24
1
1
20
200
280
100
99
22
89
300
5.25
5.5
5.75
‫ڇ‬࿋
ns
ns
ns
ns
ns
ns
ns
ns
μs
μs
μs
AD7671
TO OUTPUT
PIN
REFGND
REF
INGND
INB(2R)
INA(R)
NC
NC
NC
NC
48 47 46 45 44 43 42 41 40 39 38 37
AGND 1
AVDD 2
PIN 1
IDENTIFIER
NC 3
BYTESWAP 4
OB/2C 5
WARP 6
AD7671
AGND
35
34
CNVST
PD
33
RESET
32
CS
RD
DGND
29 BUSY
30
SER/PAR 8
D0 9
D1 10
D2/DIVSCLK[0] 11
D3/DIVSCLK[1] 12
28
D15
27
D14
26
D13
D12
25
D11/RDERROR
D9/SCLK
D10/SYNC
DVDD
DGND
D8/SDOUT
OVDD
D7/RDC/SDIN
OGND
13 14 15 16 17 18 19 20 21 22 23 24
D4/EXT/INT
D5/INVSYNC
D6/INVSCLK
NC = NO CONNECT
36
31
TOP VIEW
(Not to Scale)
IMPULSE 7
ጀ๥
1
ጀᅪLj‫؜ג‬ฉຎਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ੗ీࣷ‫ڞ‬ዂഗॲᆦ৳Ⴀ໦࣋ăኄኻ๟‫ۨܮ‬ᆌ૰ኵLj
փภतഗॲሞኄၵईඪࢆഄ໲ཉॲူ‫؜ג‬Ԩरຍࡀ߭ኸՔ‫ీࠀڦ‬Ⴀ֡ፕă
‫׊‬೺ሞਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵཉॲူ߾ፕࣷᆖၚഗॲ‫ڦ‬੗੍Ⴀă
2
֖९ఇె๼෇և‫ݴ‬ă
3
ኍ‫ܔ‬੣ഘዐ‫ڦ‬ഗॲܸჾǖ48ᆅগLQFPǖ θJA = 91°C/W, θJC = 30°C/W.
4
ኍ‫ܔ‬੣ഘዐ‫ڦ‬ഗॲܸჾǖ48ᆅগLFCSPǖ θJA = 26°C/W.
1.6mA
IND(4R)
INC(4R)
ᆅগದዃ
ST-48ࢅCP-48
ఇె๼෇
IND2, INC2, INB2 .............................................. –11 V዁+30 V
INA, REF, INGND, REFGND, AGND
........................................................... – 0.3 V዁AVDD + 0.3 V
‫ۉں‬უֶ
AGND, DGND, OGND ............................................... ±0.3 V
‫ۉ‬ᇸ‫ۉ‬უ
AVDD, DVDD, OVDD ................................... –0.3 V዁+7 V
AVDD዁DVDDLjAVDD዁OVDD ............................. ±7 V
DVDD዁OVDD ............................................... –0.3 V዁+7 V
! ຕጴ๼෇ ......................................... –0.3 V዁DVDD + 0.3 V
ాևࠀࡼ3 ............................................................................ 700 mW
ాևࠀࡼ4 ................................................................................. 2.5 W
঳࿒ ........................................................................................... 150°C
٪‫ئ‬࿒‫ ྷݔ܈‬....................................................... –65°C዁+150°C
ᆅগ࿒‫ྷݔ܈‬
(ࡰথLj10௱)....................................................................300°C
NC
ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ1
IOL
1.4V
CL
60pF*
2V
500 A
IOH
0.8V
tDELAY
* IN
SERIAL INTERFACE MODES, THE SYNC, SCLK, AND
SDOUT TIMINGS ARE DEFINED WITH A MAXIMUM LOAD
CL OF 10pF; OTHERWISE, THE LOAD IS 60pF MAXIMUM.
tDELAY
2V
0.8V
཮1. ຕጴথ੨้Ⴞ‫޶ڦ‬ሜ‫ۉ‬ୟLj
SDOUTĂSYNCĂSCLK๼‫؜‬LjCL = 10 pF
2V
0.8V
཮2. ᆩᇀඓ้ۨႾ‫ڦ‬एጚ‫ۉ‬ೝ
۩ࠔኸళ
႙ࡽ
࿒‫ྷݔ܈‬
࿒‫!ྷݔ܈‬
‫ހ‬ጎ჋ၜ
AD7671AST
AD7671ASTRL
AD7671ACP
AD7671ACPRL
EVAL-AD7671CB1
EVAL-CONTROL BRD22
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
຺‫ݛ‬Ռೝ‫ހ‬ጎ(LQFP)
຺‫ݛ‬Ռೝ‫ހ‬ጎ(LQFP)
ႊೌप‫ހ‬ጎ(LFCSP)
ႊೌप‫ހ‬ጎ(LFCSP)
ೠࠚӱ
੦዆ഗӱ
ST-48
ST-48
CP-48
CP-48
ጀ๥
1
ُӱ੗‫܀ڇ‬ᆩፕೠࠚӱLjईᇑEVAL-CONTROL BRD2ದࢇᆩᇀೠࠚ/ᄇ๖ă
2
ُӱሎႹPC‫ܔ‬໯ᆶ‫ټ‬CBՔኾࢫጘ‫ڦ‬ADIೠࠚӱ৊ႜ੦዆ժᇑኮཚ႑ă
য়ߢ
ESD(ৢ‫ߌ௺)ۉݣۉ‬ഗॲăৢ‫࢔ࢁۉۉ‬ඹᅟሞට༹ࢅ֪๬ยԢฉેओLj੗ߛ‫ٳ‬4000 VLj
ժ੗ీሞுᆶִਥ‫ڦ‬൧઄ူ‫ۉݣ‬ă৑࠶AD7671ਏᆶጆᆶESDԍࢺ‫ۉ‬ୟLj‫ڍ‬ሞᇜ‫ీߛڟ‬
ଉৢ‫้ۉݣۉ‬Lj੗ీࣷ݀ิᆦ৳Ⴀഗॲ໦࣋ăᅺُLjॺᅱ֑ൽ๢‫ڦړ‬ESD‫ٯݔݞ‬แLj
ᅜՆ௨ഗॲႠీူইईࠀీෟ฿ă
Rev. B | Page 5 of 24
AD7671
ᆅগࠀీ௮ຎ
ᆅগՊࡽ ᆅগఁ‫׬‬
ૌ႙
௮ຎ
1
2
3, 44–48
4
AGND
AVDD
NC
BYTESWAP
P
P
ఇె‫ۉ‬ᇸ‫ں‬ᆅগă
5
OB/2C
DI
6
WARP
DI
ఇ๕჋ስă‫ړ‬໲ྺߛ‫ۉ‬ೝ൐IMPULSEྺ‫ۉگ‬ೝ้Ljُ๼෇჋ስፌ੺‫ڦ‬ఇ๕Lj
੗ᅜํ၄ፌߛཾུଉǗྺକԍኤ‫ۨܮڟٳ‬ፌߛ৛‫܈‬LjՂႷ֑ᆩፌၭገ࣑໏୲ă
‫ړ‬໲ྺ‫ۉگ‬ೝ้Lj࿮ஃ๟‫֑ޏ‬ᆩፌၭገ࣑໏୲Lj๔ዕీԍ‫׼‬ፌߛ৛‫܈‬ă
7
IMPULSE
DI
8
SER/PAR
DI
9, 10
D[0:1]
DO
11, 12
D[2:3]ई
DI/O
ఇ๕჋ስă‫ړ‬໲ྺߛ‫ۉ‬ೝ൐WARPྺ‫ۉگ‬ೝ้Ljُ๼෇჋ስ‫ࡼࠀگ‬ఇ๕ă
ُఇ๕ူLjࠀࡼᇑ֑ᄣ໏୲‫ٷ‬ዂ‫װ‬Բ૩࠲ဣă
‫ز‬ႜ/ժႜ჋ስ๼෇ă‫ۉگ‬ೝ้Lj჋ስժႜ‫܋‬੨Ǘߛ‫ۉ‬ೝ้Lj
჋ስ‫ز‬ႜথ੨ఇ๕Ljຕ਍ጺ၍‫ڦ‬ᅃၵ࿋ᆩፕ‫ز‬ႜ‫܋‬੨ă
ժႜ‫܋‬੨ຕ਍๼‫؜‬ጺ၍‫ڦ‬࿋0ࢅ࿋1ă‫ړ‬SER/PARྺߛ‫ۉ‬ೝ้Lj
ኄၵ๼‫ت؜‬ᇀߛፆༀă
‫ړ‬SER/PARྺ‫ۉگ‬ೝ้Ljኄၵ๼‫؜‬ᆩፕժႜ‫܋‬੨ຕ਍๼‫؜‬ጺ၍‫ڦ‬࿋2ࢅ࿋3ă
D[4]
ईEXT/INT
DI/O
‫ړ‬SER/PARྺߛ‫ۉ‬ೝĂEXT/INTྺ‫ۉگ‬ೝ൐RDC/SDINྺ‫ۉگ‬ೝ้Lj
჋ስገ࣑ኮࢫ‫ز‬ႜዷऐ‫܁‬ൽఇ๕ăኄၵ๼෇๟‫ز‬ႜ‫܋‬੨‫ڦ‬ᅃև‫ݴ‬Lj
Ⴔᄲ้੗ᆩᇀ३஥ደ߲๼‫؜‬ຕ਍‫ాڦ‬և‫ز‬ႜ้ዓă
ሞഄ໲‫ز‬ႜఇ๕ူLjኄၵᆅগྺߛፆༀ๼‫؜‬ă
‫ړ‬SER/PARྺ‫ۉگ‬ೝ้Ljُ๼‫؜‬ᆩፕժႜ‫܋‬੨ຕ਍๼‫؜‬ጺ၍‫ڦ‬࿋4ă
14
D[5]
ईINVSYNC
DI/O
15
D[6]
ईINVSCLK
DI/O
16
D[7]
ईRDC/SDIN
DI/O
‫ړ‬SER/PARྺ‫ۉگ‬ೝ้Ljُ๼‫؜‬ᆩፕժႜ‫܋‬੨ຕ਍๼‫؜‬ጺ၍‫ڦ‬࿋7ă
17
OGND
P
‫ړ‬SER/PARྺߛ‫ۉ‬ೝ้Ljُ๼෇(‫ز‬ႜ‫܋‬੨‫ڦ‬ᅃև‫)ݴ‬ᆩፕྔևຕ਍๼෇ई‫܁‬ൽఇ๕჋ስ๼෇Lj
ਏ༹ൽਦᇀEXT/INT‫ڦ‬ጒༀă
‫ړ‬EXT/INTྺߛ‫ۉ‬ೝ้LjRDC/SDIN੗ᅜᆩፕຕ਍๼෇Lj
ᅜॽଇ߲ई߸‫ܠ‬ADC‫ڦ‬ገ࣑঳ࡕᅜਅࢾ૾‫ݛ‬๕‫د‬๼‫ڇڟ‬ᅃSDOUT၍ୟฉă
‫܁‬ൽႾଚഔ‫ࢫۯ‬ჽ‫׿‬16߲SCLKዜ೺LjSDINฉ‫ڦ‬ຕጴຕ਍‫ۉ‬ೝཚࡗDATA๼‫؜‬ă
‫ړ‬EXT/INTྺ‫ۉگ‬ೝ้LjRDC/SDINᆩᇀ჋ስ‫܁‬ൽఇ๕ă‫ړ‬RDC/SDINྺߛ‫ۉ‬ೝ้Lj
മᅃຕ਍ሞገ࣑೺क़ཚࡗSDOUT๼‫؜‬ă‫ړ‬RDC/SDINྺ‫ۉگ‬ೝ้Lj
ຕ਍ኻᆶ‫ڟڪ‬ገ࣑ྜ‫ీ֍ࢫׯ‬ཚࡗSDOUT๼‫؜‬ă
๼෇/๼‫؜‬থ੨ຕጴ‫ۉ‬ᇸ‫ں‬ă
18
OVDD
P
๼෇/๼‫؜‬থ੨ຕጴ‫ۉ‬ᇸăُᆅগ‫ڦ‬Ք‫ۉ׬‬ᇸᇑዷऐথ੨‫ۉ‬ᇸ၎ཞ(5 Vई3 V)ă
19
20
DVDD
DGND
P
P
ຕጴ‫ۉ‬ᇸăՔ‫׬‬ኵ5 Vă
փ૶থă
DIVSCLK[0:1]
13
๼෇ఇె‫ۉ‬ᇸᆅগăՔ‫׬‬ኵ5 Vă
ժႜఇ๕჋ስ(8/16࿋)ă‫ۉگ‬ೝ้LjLSBཚࡗD[7:0]๼‫؜‬LjMSBཚࡗD[15:8]๼‫؜‬ă
ߛ‫ۉ‬ೝ้LjLSBཚࡗD[15:8]๼‫؜‬LjMSBཚࡗD[7:0]๼‫؜‬ă
Քጚܾ৊዆/ܾ৊዆ցஓăOB/2Cྺߛ‫ۉ‬ೝ้Ljຕጴ๼‫ྺ؜‬Քጚܾ৊዆Ǘ
‫ۉگ‬ೝ้LjMSB‫ݒ‬ገLj‫ڞ‬ዂഄాևᅎ࿋स٪ഗ๼‫ܾ؜‬৊዆ցஓă
‫ړ‬SER/PARྺߛ‫ۉ‬ೝ้Ljُ๼෇(‫ز‬ႜ‫܋‬੨‫ڦ‬ᅃև‫)ݴ‬ᆩፕຕጴ჋ስ๼෇Lj
ᅜ჋ስాևईྔևຕ਍้ዓ(‫ݴ‬՚‫ྺ׬‬ዷऐఇ๕ࢅٗऐఇ๕)ă
‫ړ‬EXT/INTྺ‫ۉگ‬ೝ้LjSCLK๼‫؜‬჋ስాև้ዓă‫ړ‬EXT/INTยྺஇडߛ‫ۉ‬ೝ้Lj
๼‫؜‬ຕ਍ᇑ૶থ‫ڟ‬SCLK๼෇‫ྔڦ‬և้ዓ႑ࡽཞօLjྔև้ዓᆯCS჋ཚă
‫ړ‬SER/PARྺ‫ۉگ‬ೝ้Ljُ๼‫؜‬ᆩፕժႜ‫܋‬੨ຕ਍๼‫؜‬ጺ၍‫ڦ‬࿋5ă
‫ړ‬SER/PARྺߛ‫ۉ‬ೝ้Ljُ๼෇(‫ز‬ႜ‫܋‬੨‫ڦ‬ᅃև‫)ݴ‬ᆩᇀ჋ስSYNC႑ࡽ‫ڦ‬ᆶၳጒༀă
‫ۉگ‬ೝ้LjSYNCྺߛ‫ۉ‬ೝᆶၳăߛ‫ۉ‬ೝ้LjSYNCྺ‫ۉگ‬ೝᆶၳă
‫ړ‬SER/PARྺ‫ۉگ‬ೝ้Ljُ๼‫؜‬ᆩፕժႜ‫܋‬੨ຕ਍๼‫؜‬ጺ၍‫ڦ‬࿋6ă
‫ړ‬SER/PARྺߛ‫ۉ‬ೝ้Ljُ๼෇(‫ز‬ႜ‫܋‬੨‫ڦ‬ᅃև‫)ݴ‬ᆩᇀ๑SCLK႑ࡽ‫ݒ‬၎ă
໲ሞዷऐࢅٗऐఇ๕ူ਩ᆶၳă
ຕጴ‫ۉ‬ᇸ‫ں‬ă
Rev. B | Page 6 of 24
AD7671
ᆅগࠀీ௮ຎ(Ⴤ)
ᆅগՊࡽ ᆅগఁ‫׬‬
ૌ႙
௮ຎ
21
DO
‫ړ‬SER/PARྺ‫ۉگ‬ೝ้Ljُ๼‫؜‬ᆩፕժႜ‫܋‬੨ຕ਍๼‫؜‬ጺ၍‫ڦ‬࿋8ă
‫ړ‬SER/PARྺߛ‫ۉ‬ೝ้Ljُ๼‫ز(؜‬ႜ‫܋‬੨‫ڦ‬ᅃև‫)ݴ‬ᆩፕᇑSCLKཞօ‫زڦ‬ႜຕ਍๼‫؜‬ă
ገ࣑঳ࡕ٪‫ئ‬ሞೌాस٪ഗዐăAD7671ᅜMSBᆫံ‫ݛ‬๕ٗాևᅎ࿋स٪ഗ༵ࠃገ࣑঳ࡕă
ຕ਍߭๕ᆯOB/2C‫ڦ‬இड‫ۉ‬ೝਦۨă‫ز‬ႜఇ๕ူLj‫ړ‬EXT/INTྺ‫ۉگ‬ೝ้Lj
SDOUTሞSCLK‫ڦ‬ଇ߲ᄂฉ਩ᆶၳă
D[8]
ईSDOUT
‫ز‬ႜఇ๕ူLj‫ړ‬EXT/INTྺߛ‫ۉ‬ೝ้ǖ
සࡕINVSCLKྺ‫ۉگ‬ೝLjሶSDOUTሞSCLKฉืᄂ߸ႎLjժሞူᅃ߲ူইᄂᆶၳă
සࡕINVSCLKྺߛ‫ۉ‬ೝLjሶSDOUTሞSCLKူইᄂ߸ႎLjժሞူᅃ߲ฉืᄂᆶၳă
‫ړ‬SER/PARྺ‫ۉگ‬ೝ้Ljُ๼‫؜‬ᆩፕժႜ‫܋‬੨ຕ਍๼‫؜‬ጺ၍‫ڦ‬࿋9ă
‫ړ‬SER/PARྺߛ‫ۉ‬ೝ้Ljُᆅগ(‫ز‬ႜ‫܋‬੨‫ڦ‬ᅃև‫)ݴ‬ᆩፕ‫ز‬ႜຕ਍้ዓ๼෇ई๼‫؜‬Lj
ਏ༹ൽਦᇀEXT/INTᆅগ‫ڦ‬இडጒༀăSDOUT߸ႎ‫ڦ‬ᆶၳᄂൽਦᇀINVSCLKᆅগ‫ڦ‬இडጒༀă
22
D[9]
ईSCLK
DI/O
23
D[10]
ईSYNC
DO
‫ړ‬SER/PARྺ‫ۉگ‬ೝ้Ljُ๼‫؜‬ᆩፕժႜ‫܋‬੨ຕ਍๼‫؜‬ጺ၍‫ڦ‬࿋10ă
‫ړ‬SER/PARྺߛ‫ۉ‬ೝ้Ljُ๼‫ز(؜‬ႜ‫܋‬੨‫ڦ‬ᅃև‫)ݴ‬ᆩፕຕጴ๼‫؜‬ኡཞօ႑ࡽLj
ದࢇాևຕ਍้ዓ๑ᆩ(EXT/INT=இड‫ۉگ‬ೝ)ă‫ړ‬ഔ‫܁ۯ‬ൽႾଚ൐INVSYNCྺ‫ۉگ‬ೝ้Lj
SYNCՎྺߛ‫ۉ‬ೝLjժሞSDOUT๼‫؜‬ᆶၳ೺क़ԍ‫ۉߛ׼‬ೝă‫ړ‬ഔ‫܁ۯ‬ൽႾଚ൐INVSYNCྺߛ‫ۉ‬ೝ้Lj
SYNCՎྺ‫ۉگ‬ೝLjժሞSDOUT๼‫؜‬ᆶၳ೺क़ԍ‫ۉگ׼‬ೝă
24
D[11]
ईRDERROR
DO
‫ړ‬SER/PARྺ‫ۉگ‬ೝ้Ljُ๼‫؜‬ᆩፕժႜ‫܋‬੨ຕ਍๼‫؜‬ጺ၍‫ڦ‬࿋11ă
‫ړ‬SER/PARྺߛ‫ۉ‬ೝ൐EXT/INTྺߛ‫ۉ‬ೝ้Ljُ๼‫ز(؜‬ႜ‫܋‬੨‫ڦ‬ᅃև‫)ݴ‬ᆩፕ࿄ྜ‫܁ׯ‬ൽ‫ٱ‬ဃՔኾă
ሞٗऐఇ๕ူLjසࡕຕ਍‫܁‬ൽᅙਸ๔Lj‫ڍ‬࿄ሞူᅃ߲ገ࣑ྜ‫ׯྜ้ׯ‬Lj
ሶ‫ړ‬മຕ਍۪฿LjRDERRORՎྺߛ‫ۉ‬ೝă
25–28
D[12:15]
DO
ժႜ‫܋‬੨ຕ਍๼‫؜‬ጺ၍‫ڦ‬࿋12዁࿋15ă‫ړ‬SER/PARྺߛ‫ۉ‬ೝ้Ljኄၵ๼‫ت؜‬ᇀߛፆༀă
29
BUSY
DO
๼‫ݏ؜‬஬ăਸ๔ገ้࣑LjُᆅগՎྺߛ‫ۉ‬ೝLjժԍ‫ۉߛ׼‬ೝ኱‫ڟ‬ገ࣑ྜ‫ׯ‬Lj
ժ൐ຕ਍ԥ໮٪‫ాೌڟ‬ᅎ࿋स٪ഗăBUSY‫ူڦ‬ইᄂ੗ᅜᆩፕຕ਍৽Ⴣ้ዓ႑ࡽă
30
31
32
DGND
RD
CS
P
DI
DI
33
RESET
DI
34
PD
DI
ՂႷথຕጴ‫ں‬ă
‫܁‬ൽຕ਍ă‫ړ‬CSࢅRD਩ྺ‫ۉگ‬ೝ้Lj๑ీথ੨ժႜई‫ز‬ႜ๼‫؜‬ጺ၍ă
ೌ჋ă‫ړ‬CSࢅRD਩ྺ‫ۉگ‬ೝ้Lj๑ీথ੨ժႜई‫ز‬ႜ๼‫؜‬ጺ၍ă
CS࣏ᆩᇀ჋ཚྔև‫ز‬ႜ้ዓă
ް࿋๼෇ăยྺஇडߛ‫ۉ‬ೝ้LjAD7671ް࿋Lj‫ړ‬മገ࣑(සᆶ)ዐኹăසࡕփ๑ᆩLj
ُᆅগ੗ᅜথDGNDă
ู‫ۉ‬๼෇ăยྺஇडߛ‫ۉ‬ೝ้Ljࠀࡼই‫گ‬Lj‫ړ‬മገ࣑ྜ‫্ࢫׯ‬ኹገ࣑ă
35
CNVST
DI
ਸ๔ገ࣑ăCNVSTฉืᄂ๑ాև֑ᄣԍ‫׼‬ഗ৊෇ԍ‫׼‬ጒༀLjժ൐ഔ‫ۯ‬ገ࣑ă
ሞஞ؋ఇ๕ူ(IMPULSEྺߛ‫ۉ‬ೝ൐WARPྺ‫ۉگ‬ೝ)Lj‫֑ړ‬ण঩܎(t8)ྜ‫้ׯ‬Lj
සࡕCNVST‫ت‬ᇀ‫ۉگ‬ೝጒༀLjሶాև֑ᄣԍ‫׼‬ഗ৊෇ԍ‫׼‬ጒༀLjገ࣑૬नਸ๔ă
36
37
38
39
40, 41,
42, 43
AGND
REF
REFGND
INGND
INA, INB,
INC, IND
P
AI
AI
P
AI
ՂႷথఇె‫ں‬ă
एጚ๼෇‫ۉ‬უă
एጚ๼෇ఇె‫ں‬ă
ఇె๼෇‫ں‬ă
ఇె๼෇ă๼෇‫ྷݔ‬ದዃ९՗Iă
ጀ๥
AI = ఇె๼෇
DI = ຕጴ๼෇
DI/O = ມၠຕጴ
DO = ຕጴ๼‫؜‬
P = ‫ۉ‬ᇸ
Rev. B | Page 7 of 24
AD7671
༬Ⴀۨᅭ
ᆶၳ࿋ຕ(ENOB)
ओ‫ݥݴ‬၍Ⴀ(INL)
၍Ⴀဃֶ๟ኸ௅߲ஓᇑᅃཉٗ“޶஢ଉ‫“ڟࣃ”ײ‬ኟ஢ଉ‫”ײ‬
‫ڦ‬኱၍‫ڦ‬ೋֶă޶஢ଉ‫؜ۅײ‬၄ሞ‫ڼ‬ᅃ߲ஓገ࣑ኮമ‫ڦ‬1/2
LSB‫ت‬ăኟ஢ଉ‫ۨײ‬ᅭྺ‫؜ג‬ፌࢫᅃ߲ஓገ࣑1/2 LSB‫ڦ‬ᅃ߲
‫ۉ‬ೝăٗ߳ஓ‫ڦ‬ዐ‫޿ڟۅ‬኱၍‫ڦ‬ਐ૗नྺೋֶă
ྲ‫ݥݴ‬၍Ⴀ(DNL)
ሞᅃ߲૙ၙADCዐLjஓገ࣑၎ਐ1 LSBăྲ‫ݥݴ‬၍Ⴀ๟ኸํ
ाኵᇑُ૙ၙኵ‫ڦ‬ፌ‫ٷ‬ೋֶăঢ়‫׉‬ᆩԍኤ࿮฿ஓ‫ݴڦ‬Ր୲
ઠࡀۨኄᅃ༬Ⴀă
஢ଉ‫ײ‬ဃֶ
ፌࢫᅃ߲ஓገ࣑(ܾ৊዆ցஓՊஓ้ྺٗ011 . . . 10‫ڟ‬011 . . .
11)ᆌ‫ܔ‬ᆌᇀᅃ߲ԲՔ‫׬‬஢ଉ‫گײ‬1 1/2 LSB‫ڦ‬ఇె‫ۉ‬უ(±2.5 V
‫ྺ้ྷݔ‬2.499886 V)ă஢ଉ‫ײ‬ဃֶ๟ኸፌࢫᅃ߲ஓገ࣑‫ํڦ‬
ा‫ۉ‬ೝᇑ૙ၙ‫ۉ‬ೝ‫ڦ‬ೋֶă
ມटႠଭဃֶ
૙ၙዐक़‫ۉ‬ೝ๼෇‫ۉ‬უ(0 V)ᇑׂิዐक़‫ۉ‬ೝ๼‫؜‬ஓ‫ํڦ‬ा‫ۉ‬
უኮֶă
‫ڇ‬टႠଭဃֶ
ሞ‫ڇ‬टႠఇ๕ူLj‫ڼ‬ᅃ߲ஓገ࣑ᆌ‫ܔ‬ᆌᇀᅃ߲Բఇె‫ߛں‬
1/2 LSB‫ۉڦ‬ೝă‫ڇ‬टႠଭဃֶ๟ኸํाገ࣑ᇑ޿‫ڦۅ‬ೋֶă
࿮ሗො‫ۯ‬ༀ‫(ྷݔ‬SFDR)
૧ᆩኟ၀հ๼෇֪‫ݴڦڥ‬Ր୲ă໲ᇑ႑భԲ၎࠲Ljူ๕ߴ
‫؜‬କܾኁ‫࠲ڦ‬ဣǖ
ENOB = (S/[N + D]dB – 1.76)/6.02)
໲ᆩ࿋՗๖ă
ጺၿհ฿ኈ(THD)
മ࿵߲ၿհ‫ڦݴׯ‬਩‫ࢅߵݛ‬ᇑ஢ଉ‫ײ‬๼෇႑ࡽ‫ڦ‬਩‫ߵݛ‬ኵ
ኮԲLjᆩ‫ݴ‬Ԟ(dB)՗๖ă
႑ሯԲ(SNR)
ํा๼෇႑ࡽ‫ڦ‬਩‫ߵݛ‬ኵᇑలઊຯ༬ೕ୲ᅜူ‫أ‬ၿհࢅ኱
ୁྔ‫ڦ‬໯ᆶഄ໲ೕ೷‫ڦݴׯ‬਩‫ࢅߵݛ‬ኮԲLjᆩ‫ݴ‬Ԟ(dB)՗
๖ă
႑భԲ(S/[N+D])
ํा๼෇႑ࡽ‫ڦ‬਩‫ߵݛ‬ኵᇑలઊຯ༬ೕ୲ᅜူԈઔၿհ‫ڍ‬
኱ୁ‫ڦྔأ‬໯ᆶഄ໲ೕ೷‫ڦݴׯ‬਩‫ࢅߵݛ‬ኮԲLjᆩ‫ݴ‬Ԟ
(dB)՗๖ă
੥০ჽ‫׿‬
ᆩᇀ࢚ଉ֑णႠీLjኸٗCNVST๼෇‫ူڦ‬ইᄂ‫ڟ‬๼෇႑ࡽ
੗৊ႜገ࣑‫้ڦ‬क़ă
ຨༀၚᆌ
‫ܔ‬AD7671‫ڦ‬๼෇ᆌᆩ஢ଉ‫ײ‬঩ሂࡧຕኮࢫLjAD7671ํ၄
‫ۨܮ‬৛‫܈‬໯Ⴔ‫้ڦ‬क़ă
๼෇႑ࡽᇑ‫ރ‬ኵሗො႑ࡽ‫ڦ‬਩‫ޗߵݛ‬ኵኮֶLjᆩ‫ݴ‬Ԟ(dB)
՗๖ă
Rev. B | Page 8 of 24
‫ۆ‬႙߾ፕ༬Ⴀ–AD7671
60
2.5
2.0
50
1.5
NUMBER OF UNITS
INL – LSB
1.0
0.5
0
–0.5
–1.0
–1.5
40
30
20
10
–2.0
0
–3.0
–2.5
0
16384
32768
49152
65536
–2.7
–2.4
CODE
–2.1 –1.8
–1.5
–1.2
–0.9
–0.6 –0.3
NEGATIVE INL – LSB
TPC 1. ओ‫ݥݴ‬၍Ⴀᇑஓ‫࠲ڦ‬ဣ
TPC 4. ‫ۆ‬႙޶INL‫ݴ‬ք(314‫ڇ‬࿋)
8000
1.75
1.50
7029 7039
7000
1.25
6000
1.00
COUNTS
5000
0.50
0.25
4000
0
3000
–0.25
2000
1297
–0.50
986
1000
–0.75
–1.00
0
0
16384
32768
CODE
49152
65536
0
0
17
25
0
0
7FFD 7FFE 7FFF 8000 8001 8002 8003 8004 8005 8005
CODE IN HEXA
TPC 2. ྲ‫ݥݴ‬၍Ⴀᇑஓ‫࠲ڦ‬ဣ
TPC 5. ᅃ߲኱ୁ๼෇‫ڦ‬16,384ْገ࣑‫ڦ‬኱‫(཮ݛ‬ஓገ࣑)
10000
60
9503
9000
50
8000
7000
40
COUNTS
NUMBER OF UNITS
DNL – LSB
0.75
30
20
6000
5000
4000
3296
3344
3000
2000
10
1000
0
0
0
2
132
106
1
0
0
0
0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
7FFC 7FFD 7FFE 7FFF 8000 8001 8002 8003 8004 8005 8006
3.0
CODE IN HEXA
POSITIVE INL – LSB
TPC 3. ‫ۆ‬႙ኟINL‫ݴ‬ք(314‫ڇ‬࿋)
TPC 6. ᅃ߲኱ୁ๼෇‫ڦ‬16,384ْገ࣑‫ڦ‬኱‫(཮ݛ‬ஓዐ႐)
Rev. B | Page 9 of 24
AD7671
0
–40
93
–60
–100
–80
–100
THD – dB
THD
SNR – dB
AMPLITUDE – dB of Full Scale
–20
–98
96
FS = 1MSPS
fIN = 45.5322kHz
SNR = 89.45dB
THD = –100.05dB
SFDR = 100.49dB
SINAD = 89.1dB
90
SNR
–120
–102
87
–140
–160
0
100
200
300
FREQUENCY – kHz
400
84
–55
500
16.0
15.5
45
65
85
105
–104
125
110
SNR
SINAD
14.5
85
ENOB
80
14.0
ENOB – Bits
15.0
90
100
–75
95
–80
90
–85
85
–90
THD
–100
13.0
1000
100
FREQUENCY – kHz
75
70
65
THIRD HARMONIC
–110
70
80
SECOND HARMONIC
–95
–105
13.5
75
105
SFDR
–70
THD, HARMONICS – dB
95
SNR AND S/[N+D] – dB
25
–60
–65
–115
1
10
60
1000
100
FREQUENCY – kHz
TPC 8. ႑ሯԲĂ႑భԲࢅᆶၳ࿋ຕᇑೕ୲‫࠲ڦ‬ဣ
TPC 11. ጺၿհ฿ኈĂၿհࢅ࿮ሗො‫ۯ‬ༀ‫ྷݔ‬ᇑೕ୲‫࠲ڦ‬ဣ
–60
92
–70
–80
THD, HARMONICS – dB
SNR (REFERRED TO FULL SCALE) – dB
5
TPC 10. ႑ሯԲĂጺၿհ฿ኈᇑ࿒‫࠲ڦ܈‬ဣ
100
10
–15
TEMPERATURE – C
TPC 7. FFT཮
1
–35
90
88
–90
–100
SECOND HARMONIC
–110
THD
–120
–130
THIRD HARMONIC
–140
86
–80
–70
–60
–50
–40
–30
INPUT LEVEL – dB
SFDR – dB
–180
–20
–10
0
–150
–60
–50
–40
–30
–20
–10
INPUT LEVEL – dB
TPC 12. ጺၿհ฿ኈĂၿհᇑ๼෇‫ۉ‬ೝ‫࠲ڦ‬ဣ
TPC 9. ႑ሯԲᇑ๼෇‫ۉ‬ೝ‫࠲ڦ‬ဣ
Rev. B | Page 10 of 24
0
AD7671
50
POWER-DOWN OPERATING CURRENTS – nA
1000
t12 DELAY – ns
40
30
20
10
900
800
700
DVDD
600
500
400
300
50
100
150
AVDD
100
0
–55
0
0
OVDD
200
200
–35
–15
5
25
45
TEMPERATURE – C
CL – pF
TPC 13. ‫ۆ‬႙ჽ‫้׿‬क़ᇑ޶ሜ‫ۉ‬ඹCL ‫࠲ڦ‬ဣ
85
105
TPC 15. ู‫߾ۉ‬ፕ‫ୁۉ‬ᇑ࿒‫࠲ڦ܈‬ဣ
100000
10
AVDD, WARP/NORMAL
8
10000
6
DVDD, WARP/NORMAL
1000
4
100
–FS
OFFSET
2
LSB
OPERATING CURRENTS – A
65
AVDD, IMPULSE
10
0
+FS
–2
0
DVDD, IMPULSE
–4
0.1
–6
OVDD, ALL MODES
0.01
–8
–10
0.001
1
10
100
1000
10000
100000
1000000
–55
–35
–15
5
25
45
65
85
105
125
TEMPERATURE – C
SAMPLING RATE – SPS
TPC 14. ߾ፕ‫ୁۉ‬ᇑ֑ᄣ໏୲‫࠲ڦ‬ဣ
TPC 16. +FSĂ฿ۙࢅ–FSᇑ࿒‫࠲ڦ܈‬ဣ
‫ۉ‬ୟ႑တ
AD7671๟ᅃ੼੺໏Ă‫ࡼࠀگ‬Ă‫ۉڇ‬ᇸĂ৛௢16࿋ఇຕገ࣑
ഗ(ADC)Lj༵ࠃ‫ܠ‬ዖ߾ፕఇ๕LjᅜՍߵ਍ᆌᆩᆫࣅႠీă
ሞWarpఇ๕ူLjAD7671௅௱ీࠕገ࣑1,000,000߲ᄣԨ(1
MSPS)ă
AD7671ྺᆩࢽ༵ࠃೌా֑ᄣԍ‫׼‬Ăደْ԰ৎ႙ADCLjு
ᆶඪࢆୁ຤၍ჽ‫׿‬Ljਾ‫ܠ׬‬ୟްᆩ‫ܠ‬ཚ‫ڢ‬ᆌᆩ‫ڦ‬૙ၙኮ
჋ă
໲੗ᅜ߾ፕሞມटႠࢅ‫ڇ‬टႠଇዖ๼෇‫ྷݔ‬Ljਏ༹ཚࡗ߀
Վഄ๼෇‫ۉ‬ፆۨՔഗ‫૶ڦ‬থ৊ႜ჋ስă
AD7671੗ᅜ֑ᆩ5 V‫ۉڇ‬ᇸࠃ‫ۉ‬Ljժ൐੗ᅜᇑ5 Vई3 Vຕጴ
இडথ੨ă໲֑ᆩ48ᆅগLQFP‫ހ‬ጎई48ᆅগLFCSP‫ހ‬ጎLj
বู੣क़LjದዃଳऄLj੗༵ࠃ‫ز‬ႜईժႜথ੨ăAD7671๟
AD7665ࢅAD7664‫ڦ‬ᆅগग़ඹืपׂ೗ă
Rev. B | Page 11 of 24
AD7671
IND
INC
4R
4R
REF
REFGND
2R
MSB
LSB
INB
32,768C 16,384C
INA
4C
2C
C
SWA
SWITCHES
CONTROL
C
R
BUSY
COMP
INGND
CONTROL
LOGIC
OUTPUT
CODE
65,536C
SWB
CNVST
཮3. ADCᇱ૙๖ᅪ཮
ገ࣑ഗ֡ፕ
߾ፕఇ๕
AD7671๟ᅃ੼एᇀ‫ࢁۉ‬ዘ‫ݴ‬ದDAC‫ڦ‬ደْ԰ৎ႙ఇຕገ
࣑ഗă཮3၂๖କ޿ADC‫ڦ‬ᇱ૙๖ᅪ཮ă๼෇ఇె႑ࡽ๯
ံᆯాև๼෇‫ۉ‬ፆۨՔഗ໫ၭժ৊ႜ‫ۉ‬ೝገ࣑Lj޿ۨՔഗ
ኧ‫ڇ׼‬टႠ‫(ྷݔ‬0 V዁2.5 VĂ0 V዁5 VĂ0 V዁10 V)ࢅມट
Ⴀ‫(ྷݔ‬±2.5 Vñ5 Vñ10 V)ă‫ۉ‬ፆۨՔഗ‫ڦ‬๼‫ۉ؜‬უ‫ݔ‬
ྷ๔ዕྺ0 V዁2.5 VăඹႠDACᆯ16߲ܾ৊዆े඄‫ۉ‬ඹፇ
‫ڦׯ‬ᅃ߲ንଚࢅ1߲޹े“LSB”‫ۉ‬ඹፇ‫ׯ‬ăԲডഗ‫޶ڦ‬๼෇
૶থ‫ڟ‬ᅃ߲ඹኵᇑ޿ඹႠDACንଚ၎ཞ‫“ڦ‬Dummy”‫ۉ‬ඹă
AD7671ᆶෙዖ߾ፕఇ๕ǖWarpĂኟ‫ࢅ׉‬ஞ؋ă߳ఇ๕ᆶ
߳ఇ๕໯๢ࢇ‫ڦ‬ᆌᆩă
‫֑ړ‬ण঩܎ྜ‫ׯ‬൐CNVST๼෇Վྺई‫ت‬ᇀ‫ۉگ‬ೝ้Lj৽ࣷ
ഔ‫ۯ‬ገ࣑঩܎ă‫ړ‬ገ࣑঩܎ਸ๔้LjSW A ࢅSW B ๯ံ܏
ਸă඗ࢫLj‫ۉ‬ඹንଚࢅ“Dummy”‫ۉ‬ඹٗ๼෇‫܏܋‬ਸLj૶থ
‫ڟ‬REFGND๼෇ăᅺُLj֑ण঩܎঳ຐ้վጛ‫ۉڦڟ‬ፆۨ
Քഗ๼‫؜‬ᇑINGNDኮक़‫ۉݴֶڦ‬უแेᇀԲডഗ๼෇‫܋‬Lj
‫ڞ‬ዂԲডഗՎ‫ڥ‬փೝ࢚ă
ሞREFGNDईREFኮक़ൎ࣑‫ۉ‬ඹንଚ‫߳ڦ‬ᇮॲLjԲডഗ๼
෇ॽӀቷܾ৊዆े඄‫ۉ‬უօ৊(VREF/2ĂVREF/4 . . . VREF/65,536)
Վࣅă੦዆இडൎ࣑ኄၵਸ࠲Lj๯ံٗMSBਸ๔LjᅜՍ๑
Բডഗዘႎ࣮‫ڟ‬ೝ࢚ጒༀăྜ‫ࢫײࡗُׯ‬Lj੦዆இडׂิ
ADC๼‫؜‬ஓLjժॽBUSY๼‫؜‬ยྺ‫ۉگ‬ೝă
ሞገ࣑क़้߰क़ுᆶඪࢆ၌዆‫ڦ‬൧઄ူLjኟ‫׉‬ఇ๕๟ፌ੺
ఇ๕(800 kSPS)ăኄዖఇ๕༬՚๢ࢇཞ้ᄲ൱ߛ৛‫੺ࢅ܈‬໏
֑ᄣ୲‫ڦ‬ᅴօᆌᆩLjසຕ਍֑णဣཥ‫ڪ‬ă
ஞ؋ఇ๕๟ࠀࡼፌ‫ڦگ‬ᅃዖ߾ፕఇ๕Ljഗॲ੗ሞଇْገ࣑
क़ ဤ ৊ ෇ ู ‫ ۉ‬ጒ ༀ ă ኄ ዖ ఇ ๕ ူ ‫ ڦ‬ፌ ߛ ཾ ུ ଉ ྺ 666
kSPSă‫߾ړ‬ፕሞ100 SPS้Ljഄ‫ۆ‬႙ࠀࡼৈ15μWăኄዖఇ๕
༬՚๢ࢇ‫ڦۉࠃ׾ۉ‬ᆌᆩă
‫ࡧڿد‬ຕ
AD7671༵ࠃଇዖ๼‫؜‬Պஓ‫ݛ‬๕ǖՔጚܾ৊዆ࢅܾ৊዆ց
ஓLjਏ༹ཚࡗOB/2Cຕጴ๼෇৊ႜ჋ስăഄ૙ၙ‫ڿد‬༬Ⴀ
ස཮4ࢅ՗III໯๖ă
ADC CODE – Straight Binary
ሞ֑ण঩܎LjᇑԲডഗኟ๼෇၎૶‫޿ڦ‬ንଚࠌᆩ‫܋‬ཚࡗ
SWA૶থ‫ڟ‬AGNDă໯ᆶ‫܀‬૬ਸ࠲‫૶ۼ‬থ‫ۉڟ‬ፆۨՔഗ‫ڦ‬
๼‫܋؜‬ăᅺُLj‫ۉ‬ඹንଚᆩፕᅃ߲֑ᄣ‫ۉ‬ඹᅜ֑णఇె႑
ࡽăཞᄣLj“Dummy”‫ۉ‬ඹ֑णINGND๼෇ฉ‫ڦ‬ఇె႑
ࡽă
Warpఇ๕ኧ‫ٳߛ׼‬1 MSPS‫ڦ‬ፌ੺ገ࣑໏୲ă඗ܸLjሞኄዖ
ఇ๕ူ(൐ኻᆶኄዖఇ๕)Ljኻᆶ‫ړ‬ገ࣑क़้߰क़փ‫ࡗג‬1
ms้Lj֍ీԍኤ‫ۨܮ‬ፌߛ৛‫܈‬ăසࡕଇْ૶Ⴤገ࣑‫ڦ‬क़߰
้क़‫׊‬ᇀ1 msLj૩සሞฉ‫ࢫۉ‬Ljሶᆌࢮ୼‫ڼ‬ᅃ߲ገ࣑঳ࡕă
ኄዖఇ๕༬՚๢ࢇཞ้ᄲ൱ߛ৛‫੺ࢅ܈‬໏֑ᄣ୲‫ڦ‬ᆌᆩă
111...111
111...110
111...101
000...010
000...001
000...000
–FS
–FS + 1 LSB
–FS + 0.5 LSB
+FS – 1 LSB
+FS – 1.5 LSB
ANALOG INPUT
཮4. ADC૙ၙ‫ࡧڿد‬ຕ
Rev. B | Page 12 of 24
AD7671
՗III. ๼‫؜‬ஓࢅ૙ၙ๼෇‫ۉ‬უ
௮ຎ
ຕጴ๼‫؜‬ஓ
(ๆୃ৊዆)
Քጚ
ܾ৊዆ ܾ৊዆ցஓ
ఇె๼෇
஢ଉ‫ྷݔײ‬1
ፌ‫گ‬ᆶၳ࿋(LSB)
FSR – 1 LSB
ዐक़‫ۉ‬ೝ + 1 LSB
ዐक़‫ۉ‬ೝ
ዐक़‫ۉ‬ೝ – 1 LSB
–FSR + 1 LSB
–FSR
± 10 V
305.2μV
9.999695 V
305.2μV
0V
–305.2μV
–9.999695 V
–10 V
±5V
152.6μV
4.999847 V
152.6μV
0V
–152.6μV
–4.999847 V
–5 V
± 2.5 V
76.3μV
2.499924 V
76.3μV
0V
–76.3μV
–2.499924 V
–2.5 V
0 V዁10 V
152.6μV
9.999847 V
5.000153 V
5V
4.999847 V
152.6μV
0V
0 V዁5 V
76.3μV
4.999924 V
2.570076 V
2.5 V
2.499924 V
76.3μV
0V
0 V዁5 V
76.3μV
4.999924 V
2.570076 V
2.5 V
2.499924 V
76.3μV
0V
FFFF2
8001
8000
7FFF
0001
00003
7FFF2
0001
0000
FFFF
8001
80003
ጀ๥
1
REF = 2.5 VăREF = 3 V้Lj໯ᆶኵ၍Ⴀ‫ٷݣ‬ă
2
ኄᄺ๟‫ג‬ଉ‫ײ‬ఇె๼෇‫ܔ‬ᆌ‫ڦ‬ஓă
3
ኄᄺ๟വଉ‫ײ‬ఇె๼෇‫ܔ‬ᆌ‫ڦ‬ஓă
‫ۆ‬႙૶থ཮
཮5ߴ‫؜‬କAD7671‫ۆڦ‬႙૶থ཮ăԨ཮໯๖‫ڦ‬փཞ‫ۉ‬ୟ๟੗჋‫ڦ‬Ljၘ൧९ူ࿔໯ຎă
DVDD
20
ANALOG
SUPPLY
(5V)
NOTE 7
+
10 F
ADR421
100nF
AVDD
AGND
+
10 F
100nF
100nF
DGND
DVDD
OVDD
DIGITAL SUPPLY
(3.3V OR 5V)
+
10 F
OGND
SERIAL
PORT
REF
2.5V REF
NOTE 1
1M
+
50k
100nF
SCLK
CREF
NOTE 2
SDOUT
REFGND
NOTE 3
BUSY
50
INA
U2
+
+ 10 F
100nF
AD7671
AD8031
C/ P/DSP
D
CNVST
NOTE 8
OB/2C
NOTE 4
SER/PAR
50
DVDD
WARP
CLOCK
15
ANALOG
INPUT
( 10V)
IMPULSE
NOTE 5 U1
+
2.7nF
CS
AD8021
NOTE 6
RD
IND
CC
BYTESWAP
INGND
RESET
INB
PD
INC
NOTES
1. SEE VOLTAGE REFERENCE INPUT SECTION.
2. WITH THE RECOMMENDED VOLTAGE REFERENCES, CREFIS 47 F. SEE VOLTAGE REFERENCE INPUT SECTION.
3. OPTIONAL CIRCUITRY FOR HARDWARE GAIN CALIBRATION.
4. FOR BIPOLAR RANGE ONLY. SEE SCALER REFERENCE INPUT SECTION.
5. THE AD8021 IS RECOMMENDED. SEE DRIVER AMPLIFIER CHOICE SECTION.
6. WITH 0V TO 2.5V RANGE ONLY. SEE ANALOG INPUTS SECTION.
7. OPTION. SEE POWER SUPPLY SECTION.
8. OPTIONAL LOW JITTER CNVST. SEE CONVERSION CONTROL SECTION.
཮5. ‫ۆ‬႙૶থ཮(±10 V‫)ྷݔ‬
Rev. B | Page 13 of 24
AD7671
ఇె๼෇
75
཮6ߴ‫؜‬କAD7671‫ڦ‬ఇె๼෇և‫ݴ‬๖ᅪ཮ă
70
65
CMRR – dB
AD7671੗ᅜ߾ፕሞ6ዖ஢ଉ‫ײ‬ఇె๼෇‫ྷݔ‬ă຺߲ఇె๼
෇INDĂINCĂINBࢅINA߳ጲ໯Ⴔ‫૶ڦ‬থᅜत၎ᆌ‫ڦ‬஢ଉ
‫ྷݔײ‬ස՗I໯๖ă՗Iཞ้၂๖କ߳ఇె๼෇‫ۆڦྷݔ‬႙
๼෇ፆੇă
60
55
50
૶থ‫຺߲ڟ‬ఇె๼෇‫ۉ຺߲ڦ‬ፆࠓ‫ׯ‬ᅃ߲‫ۉ‬ፆۨՔഗLj໲
ॽఇె๼෇‫ྷݔ‬໫ၭժገ࣑‫ڟ‬ਸ࠲‫ۉ‬ඹADC๼෇‫ࠌڦ܋‬ᆩ
๼෇‫ྷݔ‬0 V዁2.5 Vă
45
40
35
AVDD
1
10
100
FREQUENCY – kHz
1000
10000
4R
཮7. ఇె๼෇CMRRᇑೕ୲‫࠲ڦ‬ဣ
IND
4R
INC
‫أ‬๑ᆩ0 V዁2.5 Vఇె๼෇‫ۉ‬უ‫ྷݔ‬ኮྔLjഄ໲൧઄ူՂႷ
ᆩፆੇ‫ڦگ׉ݥ‬႑ࡽᇸൻ‫ۯ‬AD7671Ljᅜ௨ׂิሺᅮဃֶă
ኄ੗ᅜ૧ᆩᅃ߲ൻ‫ٷݣۯ‬ഗํ၄LjAD7671ᅜፆႠྺዷ‫ڦ‬ఇ
ె๼෇‫ۉ‬ୟ੗०ࣅൻ‫ٷݣۯ‬ഗ‫ڦ‬჋ስă
R1
R
INA
CS
R = 1.28k
AGND
཮6. ఇె๼෇๖ᅪ཮
ॽ຺߲๼෇INAĂINBĂINCࢅIND૶থ‫ڟ‬๼෇႑ࡽԨวĂ
‫ں‬ई2.5 VएጚᇸLj੗ᅜइ‫ڥ‬ഄ໲ఇె๼෇‫ྷݔ‬ă
཮6ዐ໯๖‫ܾڦ‬ट࠶ྺ຺߲ఇె๼෇༵ࠃESDԍࢺă๼෇
INBĂINCࢅINDਏᆶߛუԍࢺࠀీ(–11 V዁+30 V)Ljኧ‫ݥ׼‬
‫ڦ੻׉‬๼෇‫ۉ‬უ‫ྷݔ‬ăൎऻLjఇె๼෇႑ࡽਦփీ‫ࡗג‬ኄ
ၵ๼෇‫ڦ‬ਨ‫ۨܮܔ‬ኵLjԈઔINA (0 V to 5 V)Lj‫ޏ‬ሶࣷሰ‫ׯ‬
ኄၵܾट࠶ኟೋLjժਸ๔‫ୁۉڞد‬ăኄၵܾट࠶੗ᅜ‫ت‬૙
ፌߛ120 mA‫ڦ‬ኟೋ‫ୁۉ‬ă૩සLj‫ړ‬๑ᆩ0 V዁2.5 V๼෇‫ݔ‬
ྷ้Ljසࡕ๼෇࣐؋ഗ(U1)‫ۉڦ‬ᇸᇑAVDDփཞLjሶኄၵ
ཉॲፌዕ੗ీࣷ‫؜‬၄ሞ๼෇INAฉăኄዖ൧઄ူLj੗ᅜ૧
ᆩਏᆶ‫܌‬ୟ‫ୁۉ‬၌዆‫ڦ‬๼෇࣐؋ഗԍࢺഗॲă
޿ఇె๼෇঳ࠓኧ‫ۉܔ׼‬ፆۨՔഗ๼‫؜‬ᇑINGNDኮक़‫ֶڦ‬
‫ݴ‬႑ࡽ৊ႜ֑ᄣăᇑഄ໲ገ࣑ഗփཞLjINGND๼෇‫֑ڦ‬ᄣ
ᇑኄၵ๼෇‫֑ڦ‬ᄣཞ้৊ႜă૧ᆩֶُ‫ݴ‬๼෇੗ᅜᅞ዆ଇ
߲๼෇ࠌᆶ‫ڦ‬ၭ႑ࡽLjස཮7໯๖Lj໲၂๖କ‫ۆ‬႙ࠌఇᅞ
዆Բ(CMRR)ᇑೕ୲‫࠲ڦ‬ဣă૩සLjසࡕ૧ᆩINGNDॠ֪
ᇺ‫ײ‬႑ࡽ‫ں‬Ljሶ‫ߌد‬ഗᇑԨ‫ں‬ADC‫ں‬ኮक़‫ۉںڦ‬࿋ֶॽԥ
ၩ‫أ‬ăሞ঍ୁ႑ࡽ‫֑ڦ‬ण঩܎LjAD7671՗၄‫ڥ‬ၟᅃ߲‫ڇ‬ट
‫ۅ‬RC୳հഗLj໲ᆯ‫ۉ‬ፆۨՔഗR/2ᇑR1‫૴زڦ‬ᆶၳ‫ۉ‬ፆࢅ
CSፇ‫ׯ‬ă‫ۉ‬ፆR1‫ۆ‬႙ኵྺ100 ΩLj๟ᅃ߲ᆯᅃၵ‫ۉ૴ز‬ፆࢅ
ਸ࠲‫ڞڦ‬ཚ‫ۉ‬ፆፇ‫ڦׯ‬णጺᇮॲă
‫ړ‬๑ᆩ0 V዁2.5 Vఇె๼෇‫ۉ‬უ‫้ྷݔ‬LjAD7671‫ڦ‬๼෇ፆੇ
‫ߛ׉ݥ‬Ljᅺُ੗ᅜ኱থᆩ‫گ‬ፆੇᇸൻ‫ۯ‬AD7671ܸփׂࣷิ
ሺᅮဃֶăኄᄣ৽੗ᅜሞ‫ٷݣ‬ഗ๼‫܋؜‬ᇑADCఇె๼෇‫܋‬
ኮक़‫ݣ‬ዃᅃ߲ྔև‫ڇ‬ट‫ۅ‬RC୳հഗLjස཮5໯๖Ljᅜ৊ᅃ
օ༵ߛAD7671ఇె๼෇‫ۉ‬ୟ‫ڦ‬ሯำ୳հႠీăփࡗLj႑ࡽ
ᇸՂႷԍ‫گ׼‬ፆੇLjᅺྺ໲ࣷᆖၚ঍ୁႠీLj༬՚๟ጺၿ
հ฿ኈ(THD)༬Ⴀăፌ‫ڦٷ‬ᇸፆੇൽਦᇀ੗ඹႹ‫ڦ‬ጺၿհ
฿ኈăTHDႠీူই‫܈ײ‬๟ᇸፆੇࢅፌ‫ٷ‬๼෇ೕ୲‫ࡧڦ‬
ຕLjස཮8໯๖ă
–70
–80
THD – dB
2R
INB
‫ۉ‬ඹCS‫ۆ‬႙ኵྺ60 pFLjዷᄲԈઔADC֑ᄣ‫ۉ‬ඹăُ‫ڇ‬ट‫ۅ‬
୳հഗ‫ۆڦ‬႙–3 dBপኹೕ୲ྺ9.6 MHzLj੗ᅜই‫گ‬փଆं۠
ᆖၚժ၌዆ઠጲ๼෇‫ڦ‬ሯำă
Rev. B | Page 14 of 24
R = 100
R = 50
–90
R = 11
–100
–110
0
100
FREQUENCY – kHz
཮8. THDᇑఇె๼෇ೕ୲ࢅ๼෇‫ۉ‬ፆ‫࠲ڦ‬ဣ
(ৈ0 V዁2.5 V‫)ྷݔ‬
1000
AD7671
ൻ‫ٷݣۯ‬ഗ჋ስ
एጚ‫ۉ‬უ๼෇
໚඗AD7671࢔ඹᅟൻ‫ۯ‬Lj‫ڍ‬ൻ‫ٷݣۯ‬ഗ዁ณᆌ஢ፁူଚᄲ
൱ǖ
AD7671๑ᆩ2.5 Vྔևएጚ‫ۉ‬უᇸă
t
t
‫ܔ‬ᇀ஢ଉ‫ײ‬঩ሂLjൻ‫ٷݣۯ‬ഗࢅAD7671ఇె๼෇‫ۉ‬ୟ
ᅃഐՂႷీࠕ๑‫ۉ‬ඹንଚॺ૬ሞ16࿋຤ೝ(0.0015%)ă
ሞ‫ٷݣ‬ഗ‫ڦ‬ຕ਍๮֩ዐLj߸‫׉‬९‫ڦ‬๟ࡀۨ0.1%዁0.01%
‫ॺڦ‬૬้क़ăኄ੗ీᇑ16࿋຤ೝ‫ॺڦ‬૬้क़၂ዸփ
ཞLjᅺُ჋ስኮമᆌ৊ႜᄓኤăၭ႙ሏ໙‫ٷݣ‬ഗ
AD8021ਏᆶ‫گג‬ሯำ༬Ⴀࢅߛሺᅮ‫੻ټ‬Ljन๑ሺᅮߛ
‫ٳ‬13Lj໲ᄺీ‫ڟٳ‬ኄᅃॺ૬้क़ᄲ൱ă
ൻ‫ٷݣۯ‬ഗ໯ׂิ‫ڦ‬ሯำႴ৑੗ీ‫گ‬LjᅜՍԍ‫׼‬
AD7671‫ڦ‬SNRࢅገ࣑ሯำႠీăઠጲൻ‫ۯ‬ഗ‫ڦ‬ሯำ๯
ံᆯ‫ۉ‬ፆۨՔഗߵ਍໯ᆩ‫ڦ‬ఇె๼෇‫ۉ‬უ‫ྷݔ‬৊ႜ໫
ၭLj඗ࢫཚࡗᆯ(R/2 + R1)ࢅCSࠓ‫ڦׯ‬AD7671‫ڦ‬ఇె๼
෇‫ۉ‬ୟ‫ڇ‬ट‫گۅ‬ཚ୳հഗ৊ႜ୳հă‫ٷݣ‬ഗᆅഐ‫ڦ‬
SNRႠీူই੗՗๖ྺ
SNRLOSS
!
!
§
·
¨
¸
¨
¸
28
20 LOG ¨
¸
2
¨
S
§ 2.5 NeN · ¸
784
f
¸ ¸
¨
3 dB ¨
2
© FSR ¹ ¹
©
ഄዐǖ
f–3 dB
ྺAD7671‫–ڦ‬3 dB๼෇‫(੻ټ‬9.6 MHz)Ljईኁ๟๼
෇୳հഗ(සᆶ)‫ڦ‬পኹೕ୲(0 V዁2.5 V‫)ྷݔ‬ă
N
ྺ‫ٷݣ‬ഗ‫ڦ‬ሯำဣຕ(࣐؋ഗದዃ้ྺ1)ă
eN
ྺሏ໙‫ٷݣ‬ഗ‫ڪڦ‬ၳ๼෇ሯำ‫ۉ‬უLj‫ڇ‬࿋
nV/ Hz ă
FSR
ྺ஢ଉ‫(܈ੵײ‬±2.5 V‫ྺྷݔ‬5 V)ă
!
૩සLj्ย๑ᆩ0 V዁5 V‫ྷݔ‬Ljൻ‫ۯ‬ഗ๑ᆩAD8021Lj
ഄ‫ڪ‬ၳ๼෇ሯำྺ2 nV/ Hz Ljժ൐ॽ໲ದዃྺ࣐؋ഗLj
ᅺܸሯำሺᅮྺ1LjሶSNRႠీৈူই0.08 dBă
t
ൻ‫ۯ‬ഗ‫ڦ‬THDႠీՂႷ๢ࢇAD7671ăTPC 11ߴ‫؜‬କTHD
ᇑೕ୲‫࠲ڦ‬ဣLjൻ‫ۯ‬ഗፌࡻᆌ‫޿ࡗג‬Ⴀీă
AD8021‫ࢇޙ‬ኄၵᄲ൱Ljबࢭ๢ࢇ໯ᆶᆌᆩăAD8021Ⴔᄲ
ᅃ߲10 pF‫ྔڦ‬ևց‫ۉ׋‬ඹăُ‫ۉ‬ඹᆌਏᆶૌຼNPO༩ٍई
ሊజ႙‫ۉ‬ඹ‫ڦ‬ଆࡻ၍Ⴀ‫܈‬ă
‫ړ‬Ⴔᄲມཚ‫ٷݣڢ‬ഗ൐๑ᆩሺᅮ1้Lj੗ᅜ๑ᆩAD8022ă
සࡕփᄲ൱ߛೕ(100 kHzᅜฉ)ႠీLjᄺ੗ᅜ჋ስAD829ăሺ
ᅮྺ1้Lj໲Ⴔᄲᅃ߲82 pF‫ڦ‬ց‫ۉ׋‬ඹă
ሞ‫گ‬ೕᆌᆩዐႴᄲ‫گ‬ೋዃ‫้ୁۉ‬Lj੗ᅜ੊୯AD8610ă
AD7671‫ڦ‬एጚ‫ۉ‬უ๼෇REFᆅগਏᆶ‫ۯ‬ༀ๼෇ፆੇLjᅺُ
ᆌ૧ᆩ‫گ‬ፆੇᇸൻ‫޿ۯ‬ᆅগLjREFᇑREFGNDᆅগኮक़ᆌ
ᆶၳඁ᳘ăُඁ᳘ൽਦᇀ჋ስࢆዖएጚ‫ۉ‬უᇸLj‫ڍ‬ཚ‫׉‬Ԉ
ઔᅃ߲1μF༩ٍ‫ۉ‬ඹࢅᅃ߲૶থ‫ڟ‬REFᇑREFGNDĂਏᆶፌ
ၭसิ‫گڦߌۉ‬ESR᮳‫ۉ‬ඹă‫ړ‬ದࢇူଚླྀ४‫ڦ‬एጚ‫ۉ‬უ
ᇸ๑ᆩ้Lj47 μF᮳‫ۉ‬ඹ๟ࢇ๢‫ڦ‬ǖ
t
‫گ‬ሯำĂ‫گ‬࿒೏एጚ‫ۉ‬უᇸADR421ࢅAD780
t
‫ࡼࠀگ‬एጚ‫ۉ‬უᇸADR291
t
‫ׯگ‬Ԩएጚ‫ۉ‬უᇸAD1582
‫ܔ‬ᇀ๑ᆩ‫߲ܠ‬AD7671‫ڦ‬ᆌᆩLjᆩᅃ߲‫گ‬ሯำĂ‫׉ݥ‬࿘ۨ‫ڦ‬
ሏ໙‫ٷݣ‬ഗ࣐؋एጚ‫ۉ‬უࣷ߸ᆶၳLj૩සAD8031ă
ᆌ༬՚ጀᅪएጚ‫ۉ‬უᇸ‫੊֖ڦ‬࿒‫܈‬ဣຕLjُ֖ຕසࡕᆶ࿚
༶Ljॽ኱থᆖၚ‫ڟ‬஢ଉ‫ײ‬৛‫܈‬ă૩සLjएጚ‫ۉ‬უᇸ±15
ppm/°C‫ڦ‬࿒‫܈‬ဣຕॽ๑஢ଉ‫ײ‬ᅜ±1 LSB/°C‫߀܈ޗڦ‬Վă
൩ጀᅪLjኟසरຍࡀ߭՗ዐ໯ຎLjVREF੗ᅜ༵ߛ‫ڟ‬AVDD –
1.85 VLjኄᄣፔ‫تࡻڦ‬๟੗ᅜ༵ߛSNRႠీă๼෇‫ྷݔ‬๟ߵ
਍V REF৊ႜۨᅭLjᅺُLj‫ړ‬AVDDߛᇀ4.85 V้Lj±REF‫ݔ‬
ྷ੗ᅜٗ±2.5 V༵ߛ‫ڟ‬±3 V‫ڪڪ‬ă૙ஃฉLjएጚ‫ۉ‬უ‫ڦ‬ኄዖ
༵ߛ੗ᅜ๑SNR༵ߛ1.58 dB (20 log [3/2.5])ăփࡗLjᆯᇀ૙
ஃଉࣅሯำ‫ڦ‬ᆖၚLjํा࠵ִ‫ڦڟ‬Ⴀీ߀฀ሀྺ1 dBăAD780
੗ᅜ༵ࠃ3 Vएጚ‫ۉ‬უ჋ၜă
ۨՔഗएጚ๼෇(ມटႠ๼෇‫)ྷݔ‬
‫ړ‬AD7671߾ፕሞມटႠ๼෇‫้ྷݔ‬Lj཮5ዐ‫૶ڦ‬থ཮၂๖
କᅃ߲एጚ‫ۉ‬უ࣐؋‫ٷݣ‬ഗăُ࣐؋‫ٷݣ‬ഗՂփ੗ณLjᆩ
ᇀॽREFᆅগᇑInxᆅগዐ‫ڦ‬႑ࡽ၎࠲‫߰ୁۉ‬૗ă੗ᅜ๑ᆩ
AD8031‫ߛڪ‬໏ሏ໙‫ٷݣ‬ഗLj໲߾ፕሞ5 V‫ۉڇ‬ᇸူLjփࣷই
‫گ‬AD7671‫ڦ‬Ⴀీă޿࣐؋ഗՂႷਏᆶଆࡻ‫ॺڦ‬૬༬ႠLjሞ
AD7671๼෇‫ڦా੻ټ‬ጺሯำՂႷ‫گ׉ݥ‬ă
‫ۉ‬ᇸ
AD7671๑ᆩෙፇ‫ۉ‬ᇸᆅগǖఇె5 V‫ۉ‬ᇸAVDDĂຕጴ5 V
ా ࢃ ‫ ۉ‬ᇸ DVDDᅜ त ຕ ጴ ๼ ෇ /๼ ‫ ؜‬থ ੨ ‫ ۉ‬ᇸ OVDDă
OVDD‫ۉ‬ᇸ੗ᅜᇑ߾ፕሞ2.7 V዁DVDD + 0.3 V‫ڦྷݔ‬ඪࢆ
இड኱থথ੨ăྺକ३ณ໯Ⴔ‫ۉ‬ᇸ‫ڦ‬ຕଉLjຕጴాࢃ
(DVDD)੗ᅜཚࡗᅃ߲०‫ڦڇ‬RC୳հഗٗఇె‫ۉ‬ᇸࠃ‫ۉ‬Lj
ස཮5໯๖ăኻᄲOVDDփ‫ࡗג‬DVDD 0.3 VᅜฉLjAD7671
৽ᇑ‫ۉ‬ᇸ้Ⴞ࿮࠲Ljᅺܸփࣷ݀ิ‫ۉ‬ᇸ‫ۉ‬უ‫ڞ‬ዂ‫ڦ‬ឋ໮၄
ၡăُྔLj໲ሞ࢔੻‫ڦ‬ೕ୲‫ۉܔాྷݔ‬ᇸՎࣅ‫׉ݥ‬փ௺
ߌLjස཮9໯๖ă
Rev. B | Page 15 of 24
AD7671
ገ࣑੦዆
75
཮11ྺገ࣑ࡗ‫ၘڦײ‬ဦ้Ⴞ཮ăAD7671‫ڦ‬ገ࣑ᆯ႑ࡽ
CNVSTഔ‫ۯ‬ăᅃ‫ڋ‬ഔ‫ۯ‬Ljሶ࿮݆ዘႎਸ๔ईዐኹLjฯ዁ู
‫ۉ‬๼෇PDᄺ࿮ీྺ૰Ljኻᆶ‫ڟڪ‬ገ࣑ྜ‫ׯ‬ăCNVST႑ࡽ
‫܀‬૬߾ፕLjᇑCSࢅRD႑ࡽ࿮࠲ă
70
PSRR – dB
65
60
55
t2
50
t1
CNVST
45
40
35
10
1
100
1000
BUSY
10000
t4
FREQUENCY – kHz
t3
཮9. PSRRᇑೕ୲‫࠲ڦ‬ဣ
MODE
ࠀࡼ
ሞஞ؋ఇ๕ူLjAD7671ሞ௅߲ገ࣑঩܎঳ຐ้ጲ‫ۯ‬ই‫ࠀگ‬
ࡼăሞ֑ण঩܎Lj߾ፕ‫گ׉ݥୁۉ‬Ljᅺُ‫ړ‬ገ࣑໏୲ই‫گ‬
้Ljࠀࡼ၂ዸই‫گ‬Ljස཮10໯๖ăኄᅃ༬Ⴀ๑‫ڥ‬AD7671‫ݥ‬
‫׉‬๢ࢇ‫ڦۉࠃ׾ۉ‬ट‫ࡼࠀگ‬ᆌᆩă
ฉຎࠀࡼுᆶ੊୯๼෇‫ۉ‬ፆۨՔഗ‫(ࡼࠀڦ‬සᆶ)Ljࢫኁൽ
ਦᇀ໯ᆩ‫ڦ‬๼෇‫ۉ‬უ‫ۉูࢅྷݔ‬ఇ๕ူ‫ڦ‬ఇె๼෇‫ۉ‬უă
‫ړ‬๑ᆩ0 V዁2.5 V‫้ྷݔ‬Ljईኁ‫ړ‬ఇె๼෇‫ۉ‬უྺ0 V൐๑
ᆩ0 V዁5 Vई0 V዁10 V‫ڇڦ‬टႠ‫้ྷݔ‬Lj‫ۉ‬ፆۨՔഗփׂ
ิࠀࡼă
ᆌ‫ړ‬ጀᅪLjन๑ሞ֑ण঩܎Ljຕጴথ੨ᄺԍ‫׼‬ᆶၳăྺ৊
ᅃօই‫߾گ‬ፕຕጴ‫ۉ‬ᇸ‫ୁۉ‬LjႴᄲॽຕጴ๼෇ൻ‫ۯ‬዁থৎ
ࠃ‫(ࡆۉ‬नDVDDࢅDGND)Ljժ൐OVDDփᆌ‫ࡗג‬DVDD
0.3 Vᅜฉă
100000
WARP/NORMAL
ACQUIRE
CONVERT
ACQUIRE
t7
཮11. एԨገ้࣑Ⴞ
ሞஞ؋ఇ๕ူLjገ࣑੗ᅜጲ‫ۯ‬ഔ‫ۯ‬ă‫ړ‬BUSYྺ‫ۉگ‬ೝ
้LjසࡕCNVST‫ت‬ᇀ‫ۉگ‬ೝLjሶAD7671੦዆֑ण঩܎Lj
඗ ࢫ ጲ ‫ ۯ‬ഔ ‫ ۯ‬ႎ ‫ ڦ‬ገ ࣑ ă ኻ ᄲ CNVSTԍ ‫ ۉ گ ׼‬ೝ Lj
AD7671৽ࣷ‫׼‬Ⴤኴႜገ࣑ࡗ‫ײ‬ăᆌጀᅪLj‫ړ‬BUSYՎྺ‫گ‬
‫ۉ‬ೝ้Ljఇె๼෇ՂႷྜ‫ॺׯ‬૬ăଷྔሞฉ‫้ۉ‬LjCNVST
ᆌՎྺ‫ۉگ‬ೝᅃْLjᅜՍഔ‫ۯ‬ገ࣑ࡗ‫ײ‬ăُఇ๕ူLj
AD7671‫֑ڦ‬ᄣ໏୲ᆶ้੗ీฎ੺ᇀ666 kSPS‫ڦ‬ԍኤ၌ኵă
Warpईኟ‫׉‬ఇ๕ዐሶփ٪ሞኄᅃ༬Ⴀă
໚඗CNVST๟ᅃ߲ຕጴ႑ࡽLj‫ڍ‬ยऺ้ᆌ༬՚ጀᅪLjᆌ‫ړ‬
֑ᆩ੺໏Ă߅৫‫ڦ‬Չᄂᅜतࡗ؋/വ؋ईၚଯና‫ږ‬टၭ‫ۉڦ‬
ೝăፌࡻᆩ‫ں‬ೡԸCNVSTጽ၍Ljժሞ੍ৎൻ‫ُۯ‬၍ୟ‫ڦ‬ഗ
ॲ‫ڦ‬๼‫ت܋؜‬ሺेᅃ߲‫گ‬ኵ‫ۉ૴ز‬ፆ(ස50 Ω)ă
1000
t9
100
RESET
10
IMPULSE
BUSY
1
0.1
1
10
100
CONVERT
t8
ኍ‫ܔ‬SNRႠీ዁࠲ዘᄲ‫ڦ‬ᆌᆩLjCNVST႑ࡽ‫ڦ‬۶‫ۯ‬ᆌ‫׉ݥ‬
‫گ‬ăྺُLj੗ᅜ๑ᆩጆᆩና‫ږ‬ഗઠׂิCNVST႑ࡽLjईኁ
዁ณᆌ૧ᆩߛೕ‫گ‬۶‫้ۯ‬ዓྺഄ้ۨLjස཮5໯๖ă
10000
POWER DISSIPATION – W
t6
t5
1000
10000
SAMPLING RATE – SPS
100000
1000000
DATA BUS
཮10. ࠀࡼᇑ֑ᄣ໏୲‫࠲ڦ‬ဣ
t8
CNVST
཮12. RESET้Ⴞ
Rev. B | Page 16 of 24
AD7671
ຕጴথ੨
CS = 0
AD7671ਏᆶᅃ߲‫ీࠀܠ‬ຕጴথ੨Lj੗ᅜ૧ᆩ‫ز‬ႜईժႜথ
੨ᇑዷऐဣཥথ੨ă‫ز‬ႜথ੨ᇑժႜຕ਍ጺ၍ްᆩăኻႴ
ॽAD7671‫ڦ‬OVDD‫ۉ‬ᇸᆅগ૶থ‫ڟ‬ዷऐဣཥথ੨ຕጴ‫ۉ‬
ᇸLjAD7671ຕጴথ੨Ս੗ኧ‫׼‬3 Vई5 VஇडăፌࢫLj૧ᆩ
OB/2C๼෇ᆅগ੗ᅜ჋ስՔጚܾ৊዆ईܾ৊዆ցஓՊஓ‫ݛ‬
๕ă
CSࢅRDኄଇ߲႑ࡽ੦዆ຕጴথ੨ăኻᄲഄዐᅃ߲႑ࡽྺ
ߛ‫ۉ‬ೝLjথ੨๼‫؜‬Ս‫ت‬ᇀߛፆༀăཚ‫ܸ׉‬ჾLjሞ‫ۉܠ‬ୟᆌ
ᆩዐLjCSᆩᇀ჋ስ߳AD7671Ǘሞ‫ڇ‬AD7671ยऺዐLjCSԍ
‫ۉگ׼‬ೝăRDᅃӯᆩᇀ๑ీຕ਍ጺ၍ฉ‫ڦ‬ገ࣑঳ࡕă
t1
CNVST
t 10
BUSY
t4
DATA BUS
BUSY
t4
t3
PREVIOUS
CONVERSION
DATA BUS
t 12
t 13
཮15. ‫܁‬ൽ้‫ٗڦ‬ऐժႜຕ਍้Ⴞ(ገ࣑೺क़‫܁‬ൽ)
BYTESWAPᆅগ੗ᅜᇑ8࿋ጺ၍࿮‫ފ‬থ੨ăස཮16໯๖Lj
‫ړ‬BYTESWAPྺ‫ۉگ‬ೝ้LjLSBཚࡗD[7:0]๼‫؜‬LjMSBཚࡗ
D[15:8]๼‫؜‬ă‫ړ‬BYTESWAPྺߛ‫ۉ‬ೝ้LjLSBጴবᇑMSB
ጴব঍࣑LjLSBཚࡗD[15:8]๼‫؜‬LjMSBཚࡗD[7:0]๼‫؜‬ăස
ࡕॽBYTESWAP૶থ‫ںڟ‬኷၍Ljሶ16߲ຕ਍࿋੗ᅜ‫ݴ‬2߲
ጴবሞD[15:8]ईD[7:0]ฉ‫܁‬ൽă
CS = RD = 0
t3
t1
CNVST,
RD
t 11
PREVIOUS CONVERSION DATA
NEW DATA
CS
཮13. ‫܁‬ൽ้‫ڦ‬ዷऐժႜຕ਍้Ⴞ(૶Ⴤ‫܁‬ൽ)
RD
ժႜথ੨
BYTE
‫ړ‬SER/PAR‫ت‬ᇀ‫ۉگ‬ೝ้LjAD7671๑ᆩժႜথ੨ăຕ਍़
੗ᅜሞْ߳ገ࣑ኮࢫLjनူᅃ߲֑ण঩܎‫܁‬ൽLjᄺ੗ᅜሞ
ူᅃገ࣑೺क़‫܁‬ൽLjኄଇዖ൧઄‫ݴ‬՚ස཮14ࢅ཮15໯๖ă
඗ܸLjසࡕሞገ࣑೺क़‫܁‬ൽຕ਍Ljॺᅱৈሞገ࣑঩܎‫ڦ‬മ
ӷ܎‫܁‬ൽăኄ੗ᅜՆ௨ຕጴথ੨ࢅፌ࠲॰‫ڦ‬ఇెገ࣑‫ۉ‬ୟ
ฉ‫ۉڦ‬უຨՎኮक़‫؜‬၄ઍཚă
PINS D[15:8]
HI-Z
HIGH BYTE
t12
t12
PINS D[7:0]
HI-Z
LOW BYTE
LOW BYTE
HIGH BYTE
HI-Z
t13
HI-Z
཮16. 8࿋ժႜথ੨
‫ز‬ႜথ੨
‫ ړ‬SER/PAR‫ ت‬ᇀ ߛ ‫ ۉ‬ೝ ้ Lj AD7671๑ ᆩ ‫ ز‬ႜ থ ੨ ă
AD7671ᅜMSBᆫံ‫ݛ‬๕ሞSDOUTᆅগฉ๼‫؜‬16࿋ຕ਍ă
ُຕ਍ᇑSCLKᆅগฉ༵ࠃ‫ڦ‬16้߲ዓஞ؋ཞօă๼‫؜‬ຕ਍
ሞຕ਍้ዓ‫ڦ‬ฉืᄂࢅူইᄂ਩ᆶၳă
CS
RD
ٗऐ‫ز‬ႜথ੨
BUSY
CURRENT
CONVERSION
DATA BUS
t 12
t 13
཮14. ‫܁‬ൽ้‫ٗڦ‬ऐժႜຕ਍้Ⴞ(ገ࣑ኮࢫ‫܁‬ൽ)
ྔև้ዓ
‫ړ‬EXT/INTᆅগ‫ت‬ᇀߛ‫ۉ‬ೝ้LjAD7671૧ᆩሞSCLKᆅগ
ฉ༵ࠃ‫ྔڦ‬և‫ز‬ႜຕ਍้ዓ߾ፕăኄዖఇ๕ူLj੗ᅜᆩ‫ܠ‬
ዖ‫܁݆ݛ‬ൽຕ਍ăྔև‫ز‬ႜ้ዓᆯCS჋ཚLj‫ړ‬CSࢅRD਩
ྺ‫ۉگ‬ೝ้Ljຕ਍๼‫؜‬ăᅺُLjߵ਍CS‫ڦ‬ጒༀփཞLjຕ਍
੗ᅜሞْ߳ገ࣑ኮࢫईሞူᅃገ࣑೺क़‫܁‬ൽăྔև้ዓ੗
ᅜ๟૶Ⴤ้ዓई‫૶ݥ‬Ⴤ้ዓă‫૶ݥ‬Ⴤ้ዓሞ࿮ၳ้੗ᅜ๟
‫ߛ׉‬ई‫گ׉‬ă཮19ࢅ཮21ྺኄၵ‫ၘڦ݆ݛ‬ဦ้Ⴞ཮ă
Rev. B | Page 17 of 24
AD7671
ገLjܸٗ๑ຕጴऄ‫ۯ‬ᇑ࠲॰ገ࣑ಒ܏ኮक़‫ڦ‬੗ీઍཚই዁
ፌ‫گ‬ă
ዷऐ‫ز‬ႜথ੨
ాև้ዓ
ሞገ࣑ኮࢫ‫܁‬ൽఇ๕ူᆌጀᅪLjᇑഄ໲ఇ๕փཞLj႑ࡽ
BUSYሞ16߲ຕ਍࿋ደ߲๼‫؜‬ኮࢫՎྺ‫ۉگ‬ೝLjܸփ๟ሞ
ገ࣑঩܎঳ຐ้Ljࢫኁࣷ‫ڞ‬ዂBUSY੻‫܈‬ড‫׊‬ă
‫ړ‬EXT/INTᆅগ‫ت‬ᇀ‫ۉگ‬ೝ้LjAD7671ׂิժ༵ࠃ‫ز‬ႜຕ
਍้ዓSCLKă໲ׂ࣏ิᅃ߲SYNC႑ࡽLjᅜߢኪዷऐ‫ز‬ႜ
ຕ਍ࢆ้ᆶၳăසࡕႴᄲLj‫ز‬ႜ้ዓSCLKࢅSYNC႑ࡽ੗
ᅜ‫ݒ‬၎ăߵ਍RDC/SDIN๼෇‫ڦ‬ጒༀփཞLjຕ਍੗ᅜሞ߳
ْገ࣑ኮࢫईሞገ࣑೺क़‫܁‬ൽă཮17ࢅ཮18ྺኄଇዖ‫݆ݛ‬
‫ၘڦ‬ဦ้Ⴞ཮ă
‫ړ‬AD7671ኟሞኴႜ࿋ಒ܏้LjՂႷጀᅪຕጴ๼෇/๼‫؜‬ᆅ
গฉփీ‫؜‬၄‫ۉ‬უຨՎLj‫ޏ‬ሶࣷ‫ڞ‬ዂገ࣑঳ࡕփॅăኄሞ
ገ࣑঩܎‫ࢫڦ‬ӷ܎ᆮഄዘᄲLjᅺྺAD7671༵ࠃକဃֶၯኟ
‫ۉ‬ୟLj੗ᅜၯኟገ࣑঩܎‫ڦ‬മӷ܎೺क़ፔ‫ڦ؜‬փ‫ړ‬࿋ಒ
܏ăᅺُLj‫ړ‬๑ᆩྔև้ዓ้Ljॺᅱ๑ᆩ‫૶ݥ‬Ⴤ้ዓLj໲
ৈሞBUSYྺ‫ۉگ‬ೝ้ൎ࣑LjईኁփሞBUSYߛ‫ۉ‬ೝ‫ࢫڦ‬ӷ
܎ՎദLjኄᅃ‫ྺ߸ۅ‬ዘᄲă
ཚ‫׉‬LjAD7671ᅜߛཾུ໏୲߾ፕLjᅺُසࡕీࠕ๑ᆩLj‫ز‬
ႜఇ๕ፌࡻ๑ᆩገ࣑೺क़ዷऐ‫܁‬ൽఇ๕ă
ሞገ࣑೺क़‫܁‬ൽఇ๕ူLj‫ز‬ႜ้ዓࢅຕ਍ሞ๢‫้ڦړ‬ਗ਼‫ݒ‬
EXT/INT = 0
RDC/SDIN = 0
CS, RD
INVSCLK = INVSYNC = 0
t3
CNVST
t 28
BUSY
t 30
t 29
t 25
SYNC
t 14
t 18
t 19
t 20
t 24
t 21
t 26
1
2
D15
D14
SCLK
3
14
15
16
t 15
t 27
SDOUT
X
t 16
D2
D1
D0
t 23
t 22
཮17. ‫܁‬ൽ้‫ڦ‬ዷऐ‫ز‬ႜຕ਍้Ⴞ(ገ࣑ኮࢫ‫܁‬ൽ)
RDC/SDIN = 1
EXT/INT = 0
INVSCLK = INVSYNC = 0
CS, RD
t1
CNVST
t3
BUSY
t 17
t 25
SYNC
t 14
t 19
t 20 t 21
t 15
SCLK
t 24
1
2
D15
D14
3
14
15
D2
D1
t 18
SDOUT
X
t 16
t 22
t 26
16
t 27
t 23
཮18. ‫܁‬ൽ้‫ڦ‬ዷऐ‫ز‬ႜຕ਍้Ⴞ(ገ࣑೺क़‫܁‬ൽമᅃገ࣑঳ࡕ)
Rev. B | Page 18 of 24
D0
AD7671
EXT/INT = 1
INVSCLK = 0
RD = 0
CS, RD
BUSY
t36
SCLK
t35
t37
1
2
t31
3
14
15
16
17
18
t32
X
SDOUT
D15
t16
D14
D13
D1
D0
X15
X14
X14
X13
X1
X0
Y1 5
Y14
t34
SDIN
X15
t33
཮19. ‫܁‬ൽ้‫ٗڦ‬ऐ‫ز‬ႜຕ਍้Ⴞ(ገ࣑ኮࢫ‫܁‬ൽ)
ገ࣑ኮࢫ‫ྔڦ‬և‫૶ݥ‬Ⴤ้ዓຕ਍‫܁‬ൽ
BUSY
OUT
໚඗๑ᆩኄዖఇ๕փీํ၄ፌߛཾུଉLj‫ڍ‬ኄ๟ፌኵ‫ླྀڥ‬
४‫زڦ‬ႜٗऐఇ๕ă཮19ྺُ‫ၘڦ݆ݛ‬ဦ้Ⴞ཮ăገ࣑ྜ
‫(ࢫׯ‬ཚࡗBUSY‫ۉگڟ࣮ݓ‬ೝ‫ڥ‬ኪ)Ljُገ࣑‫ڦ‬঳ࡕ੗ᅜሞ
CSࢅRD਩ྺ‫ۉگ‬ೝ้‫܁‬ൽăຕ਍ᅜMSBᆫံ‫ݛ‬๕ᆯ16߲
้ዓஞ؋ደ߲๼‫؜‬Ljܸ൐ሞ้ዓ‫ڦ‬ฉืᄂࢅူইᄂ਩ᆶ
ၳă
BUSY
AD7671
AD7671
#2
(UPSTREAM)
#1
(DOWNSTREAM)
RDC/SDIN
ፌࢫLjኻᆶሞኄዖఇ๕ူLjAD7671֍༵ࠃ“ਅࢾ૾”༬ႠLj
૧ᆩRDC/SDIN๼෇ᆅগ੗ॽ‫߲ܠ‬ገ࣑ഗप૴ഐઠăኄᅃ
༬Ⴀ੗ᆩᇀ३ณഗॲຕଉࢅ၍ୟ૶থǗ૩සሞ߰૗๕‫ܠ‬ገ
࣑ഗᆌᆩዐLjထྭഗॲࢅ૶থሁณሁࡻă
ଇ߲ഗॲ‫ڦ‬ਅࢾ૾૶থ๖૩ස཮20໯๖ă૧ᆩᅃ߲ࠅࠌ
CNVST႑ࡽ੗ᅜํ၄ཞօ֑ᄣăᆌጀᅪLj໮٪RDC/SDIN
๼෇‫ڦ‬SCLKᄂᇑᆩᇀሞSDOUTฉ๼‫؜‬ຕ਍‫ڦ‬SCLKᄂ၎
‫ݒ‬ăᅺُLjሞူᅃ߲SCLKዜ೺Ljฉᆴገ࣑ഗ‫ڦ‬MSB৆߶ူ
ᆴገ࣑ഗ‫ڦ‬LSBă
SDOUT
RDC/SDIN
CNVST
ኄዖ‫ڦ݆ݛ‬ᆫ‫ۅ‬ኮᅃ๟ገ࣑ႠీփࣷူইLjᅺྺገ࣑ࡗ‫ײ‬
ዐຕጴথ੨ฉփ٪ሞ‫ۉ‬უຨՎă
ଷᅃ߲ᆫ‫ۅ‬๟໲ీࠕᅜፌߛ40 MHz‫ڦ‬ඪᅪ໏‫܁܈‬ൽຕ਍Lj
़ኧ‫׼‬஥໏ຕጴዷऐথ੨Ljᄺኧ‫׼‬ፌ੺‫زڦ‬ႜ‫܁‬ൽă
BUSY
SDOUT
DATA
OUT
CNVST
CS
CS
SCLK
SCLK
SCLK IN
CS IN
CNVST IN
཮20. ଇ߲AD7671‫ڦ‬ਅࢾ૾ದዃ
ገ࣑೺क़‫ྔڦ‬և้ዓຕ਍‫܁‬ൽ
཮32ྺُ‫ၘڦ݆ݛ‬ဦ้Ⴞ཮ăገ࣑೺क़Lj‫ړ‬DTࢅSE਩ྺ
‫ۉگ‬ೝ้Lj੗ᅜ‫܁‬ൽമᅃገ࣑‫ڦ‬঳ࡕăຕ਍ᅜNTCᆫံ‫ݛ‬
๕ᆯ27้߲ዓஞ؋ደ߲๼‫؜‬Ljܸ൐ሞ้ዓ‫ڦ‬ฉืᄂࢅူই
ᄂ਩ᆶၳăՂႷሞ‫ړ‬മገ࣑ྜ‫ׯ‬ኮമ‫ྜ܁‬ኄ27࿋ຕ਍ăස
ࡕ࿄‫ྜ܁‬LjሶSEFSSPSՎྺߛ‫ۉ‬ೝLj੗ᅜᆩઠዐ܏ዷऐ
থ੨Lj‫ݞ‬ኹຕ਍‫܁‬ൽփྜኝăُఇ๕ுᆶਅࢾ૾༬ႠLj
SED0TEJO๼෇ᆌᇑߛ‫ۉ‬ೝई‫ۉگ‬ೝ၎૶ă
Rev. B | Page 19 of 24
AD7671
INVSCLK = 0
EXT/INT = 1
RD = 0
CS
CNVST
BUSY
t3
t 35
t 36 t 37
SCLK
1
2
t 31
14
15
16
t 32
X
SDOUT
3
D15
D14
D1
D13
D0
t 16
཮21. ‫܁‬ൽ้‫ٗڦ‬ऐ‫ز‬ႜຕ਍้Ⴞ(ገ࣑೺क़‫܁‬ൽമᅃገ࣑঳ࡕ)
ྺই‫گ‬ຕጴऄ‫ܔۯ‬Ⴀీ‫ڦ‬ᆖၚLjॺᅱ๑ᆩူຎೕ୲‫੺ڦ‬໏
‫૶ݥ‬Ⴤ้ዓǖஞ؋ఇ๕ူ዁ณ25 MHzLjኟ‫׉‬ఇ๕ူ዁ณ32
MHzLjWarpఇ๕ူ዁ณ40 MHzLjᅜඓԍ໯ᆶຕ਍࿋‫ీۼ‬ሞ
ገ࣑঩܎‫ڦ‬മӷ܎‫܁‬ൽăᄺ੗ᅜሞገ࣑ኮࢫਸ๔‫܁‬ൽຕ
਍Ljฯ዁ሞႎገ࣑ᅙഔ‫ۯ‬ኮࢫीჄ‫܁‬ൽፌࢫ‫ڦ‬ຕ਍࿋ăُ
้੗ᅜ๑ᆩড஥‫้ڦ‬ዓLj૩සǖஞ؋ఇ๕ူ18 MHzLjኟ‫׉‬
ఇ๕ူ21 MHzLjWarpఇ๕ူ26 MHză
DVDD
AD7671*
MC68HC11*
SER/PAR
EXT/INT
CS
RD
BUSY
SDOUT
SCLK
INVSCLK
CNVST
IRQ
MISO/SDI
SCK
I/O PORT
* ADDITIONAL PINS OMITTED FOR CLARITY
ྲ‫ت‬૙ഗথ੨
AD7671༬՚๢ࢇኧ‫تྲ׼‬૙ഗ‫دڦ‬ཥ኱ୁ֪ଉᆌᆩࢅᇑຕ
ጴ႑ࡽ‫ت‬૙ഗথ੨‫ڦ‬঍ୁ႑ࡽ‫ت‬૙ᆌᆩăAD7671੗ᅜ૶থ
ժႜ8࿋ई16࿋੻থ੨Ljईኁ૶থྲ੦዆ഗฉ‫ڦ‬ཚᆩ‫ز‬ႜ
‫܋‬੨ईI/O‫܋‬੨ăAD7671੗ᅜᇑ߳ዖྔև࣐؋ഗದࢇ๑
ᆩLj‫ݞ‬ኹຕጴሯำ᳘ࢇ‫ڟ‬ADCኮዐăူ௬ຫ௽AD7671ස
ࢆ ದ ࢇ ᅃ ߲ ‫ ټ‬ᆶ SPIথ ੨ ‫ ྲ ڦ‬੦ ዆ ഗ Ă ADSP-21065Lࢅ
ADSP-218xຕጴ႑ࡽ‫ت‬૙ഗ๑ᆩă
SPIথ੨(MC68HC11)
཮ 22ྺ AD7671ᇑ ᅃ ߲ ದ ᆶ SPIথ ੨ ‫ ྲ ڦ‬੦ ዆ ഗ (૩ ස
MC68HC11)‫ ڦ‬থ ੨ ཮ăྺኧ‫ྲ׼‬੦዆ഗ‫ڦ‬ড஥໏‫܈‬Lj
AD7671ᆩፕٗऐLjຕ਍ՂႷሞገ࣑ኮࢫ‫܁‬ൽăُఇ๕ཞᄣ
ਏᆶਅࢾ૾༬Ⴀăገ࣑ంସ੗ᅜၚᆌᅃ߲ాև้ۨഗዐ܏
ܸഔ‫ۯ‬ă๼‫؜‬ຕ਍‫܁ڦ‬ൽ(Ղᄲ้ᅃْᅃ߲ጴব)੗ᅜၚᆌ
ገ࣑঳ຐ႑ࡽ(BUSYՎྺ‫ۉگ‬ೝ)Lj૧ᆩྲ੦዆ഗ‫ڦ‬ዐ܏၍
ୟܸഔ‫ۯ‬ăၠMC68HC11‫زڦ‬ႜྔยথ੨(SPI)੦዆स٪ഗ
(SPCR)ႀ෇ຕ਍Ljॽഄದዃྺǖዷऐఇ๕(MSTR) = 1Lj้ዓ
टႠ࿋(CPOL) = 0Lj้ዓ၎࿋࿋(CPHA) = 1LjSPIዐ܏๑ీ
(SPIE) = 1ăIRQದዃྺৈ‫ܔ‬Չᄂ௺ߌ߾ፕఇ๕(OPTIONस
٪ഗዐ‫ڦ‬IRQE = 1)ă
཮22. AD7671ᇑSPIথ੨‫૶ڦ‬থ
ዷऐ‫ز‬ႜথ੨ዐ‫ڦ‬ADSP-21065L
ස཮23໯๖Lj૧ᆩዷऐఇ๕ူ‫زڦ‬ႜথ੨Lj੗ᅜ๑AD7671
ᇑADSP-21065Lํ၄থ੨Lj࿮Ⴔඪࢆঌ૶இडăُఇ๕़
ਏᆶ၍ୟ૶থডณ‫ڦ‬ᆫ๞Ljᆼీᅜፌߛ‫د‬๼໏‫܈‬ሞገ࣑೺
क़ईገ࣑ኮࢫ‫܁‬ൽຕ਍(DIVSCLK[0:1]਩ྺ‫ۉگ‬ೝ)ă
AD7671ದዃྺాև้ዓఇ๕(EXT/INTྺ‫ۉگ‬ೝ)Ljᅺُᆩፕ
ዷऐăገ࣑ంସ੗ᅜཚࡗ‫ܠ‬ዖ‫ݛ‬๕ׂิǖᅃ߲ྔև‫گ‬۶‫ۯ‬
ና‫ږ‬ഗLjස཮໯๖‫ڦ‬ADSP-21065L FLAG๼‫؜‬LjईኁADSP21065L‫ڦ‬ᅃ߲‫ز‬ႜ‫܋‬੨‫ڦ‬ኡ๼‫؜‬TFS(໲੗ᅜၟ้ۨഗᅃᄣ
๑ᆩ)ăADSP-21065L‫زڦ‬ႜ‫܋‬੨ದዃྺǖྔև้ዓ(IRFS =
0)Ăฉืᄂᆶၳ(CKRE = 1)Ăྔև‫׿‬ኡཞօ႑ࡽ(IRFS = 0Ă
LAFS = 1ĂRFSR = 1)ᅜतߛ‫ۉ‬ೝᆶၳ(LRFS = 0)ăADSP21065L‫زڦ‬ႜ‫܋‬੨ཚࡗႀ෇ഄথ๭੦዆स٪ഗ(SRCTL)৊ႜ
ದዃLjၘ൧९ADSP-2106x SHARCᆩࢽ๮֩ăᆯᇀADSP21065L‫زڦ‬ႜ‫܋‬੨ॽੂ‫ڟ‬ᅃ߲‫૶ݥ‬Ⴤ้ዓLjᅺُሞADSP21065Lྜ‫ްׯ‬࿋ࢫՂႷ৊ႜ‫؛‬๔ጴ‫܁‬ൽLjඓԍ‫ز‬ႜ‫܋‬੨ሞ
ࢫჄ߳ຕ਍‫܁‬ൽ֡ፕዐᇑُ้ዓኟඓཞօă
Rev. B | Page 20 of 24
AD7671
AD7671‫ۉڦ‬ᇸ၍ୟᆌ֑ᆩ৑੗ీ੻‫ڦ‬ጽ၍Ljᅜ༵ࠃ‫گ‬ፆੇ
ୟ০Ljժ३ၭ‫ۉ‬ᇸ၍ୟฉ‫ڦ‬றِሯำၳᆌăଆࡻ‫ڦ‬ඁ᳘ᄺ
࢔ዘᄲLjᅜՍই‫گ‬AD7671‫ۉڦ‬ᇸፆੇLjժ३ณ‫ۉ‬ᇸॖ‫ޗރ‬
‫܈‬ă‫ۆ‬႙ኵ100 nF‫ڦ‬ඁ᳘༩ٍ‫ۉ‬ඹᆌ੍ৎ(૙ၙ൧઄๟৆੍)
໯ᆶ‫ۉ‬ᇸᆅগAVDDĂDVDDĂOVDDतഄ‫ܔ‬ᆌ‫ڦ‬থ‫ں‬ᆅ
গ‫ݣ‬ዃăُྔLjADC޹ৎᆌ‫ݣ‬ዃ‫گ‬ESR 10 mF‫ۉ‬ඹLjᅜ৊ᅃ
օ३ၭ‫گ‬ೕ࿖հă
DVDD
AD7671*
ADSP-21065L*
SHARC ®
SER/PAR
RDC/SDIN
RD
EXT/INT
SYNC
SDOUT
CS
INVSYNC
SCLK
INVSCLK
CNVST
RFS
DR
RCLK
FLAG OR TFS
ٗ཮9੗ᅜੂ‫؜‬LjAD7671‫ۉܔ‬ᇸฉ‫ڦ‬ሯำਏᆶଆࡻ‫ੇڦ‬ඡ
‫܈‬Ljփࡗධᆌጀᅪথ‫ں‬քਆă
AD7671‫ڦ‬DVDD‫ۉ‬ᇸ੗ᅜ๟ᅃ߲‫܀‬૬‫ۉ‬ᇸLjᄺ੗ᅜઠጲఇ
ె‫ۉ‬ᇸAVDDLjईኁઠጲຕጴথ੨‫ۉ‬ᇸOVDDă‫ړ‬ဣཥຕ
ጴ‫ۉ‬ᇸ‫ڦ‬ሯำ໿ߛईኁ٪ሞ੺໏ൎ࣑ຕጴ႑ࡽ้Ljසࡕு
ᆶ‫܀‬૬‫ۉ‬ᇸ੗ᆩLjሶॺᅱॽDVDDຕጴ‫ۉ‬ᇸཚࡗᅃ߲RC୳
հഗ૶থ‫ڟ‬ఇె‫ۉ‬ᇸAVDDLjස཮5໯๖Ljժॽဣཥ‫ۉ‬ᇸ૶
থ‫ڟ‬থ੨ຕጴ‫ۉ‬ᇸOVDDࢅഄᇆຕጴ‫ۉ‬ୟă‫ړ‬DVDDٗဣ
ཥ‫ۉ‬ᇸࠃ‫้ۉ‬Lj֭෇ᅃ߲‫ى‬ዩ๟࢔ᆶᆩ‫ڦ‬Lj੗৊ᅃօই‫گ‬
ߛೕሯำॖ‫ރ‬ă
AD7671໯ሞ‫ڦ‬ᆇຘ‫ۉ‬ୟӱᆌ֑ᆩఇెև‫ݴ‬ᇑຕጴև‫ݴݴ‬૗
ยऺLjժ၌዆ሞ‫ۉ‬ୟӱ‫ڦ‬ᅃۨ൶ᇘాăኄᄣՍᇀ๑ᆩথ‫ں‬
֫ժඟ໲்ᅟᇀ‫ݴ‬૗ăຕጴ‫ࢅں‬ఇె‫ں‬ᆌ‫૶ۅڇ‬থă‫ۅڇ‬
থ ‫ ۅ ں‬ፌ ࡻ ࿋ ᇀ AD7671ူ ‫ ݛ‬Lj ዁ ณ ᆌ ৑ ੗ ీ ੍ ৎ
AD7671ăසࡕAD7671ဣཥాᆶ‫߲ܠ‬ഗॲᄲ൱ఇຕথ‫૶ں‬
থLjධᆌॕ‫ۅڇ׼‬থ‫ں‬Ljӝথ‫ݣۅں‬ዃሞ৑੗ీ੍ৎ
AD7671‫ڦ‬ᅃ߲႓႙থ‫ۅں‬ă
AD7671ᆶ 5߲ փ ཞ থ ‫ ں‬ᆅ গ ǖ INGNDĂ REFGNDĂ
AGNDĂDGNDࢅOGNDăINGNDᆩᇀॠ֪ఇె๼෇႑
ࡽăREFGNDᆩᇀॠ֪एጚ‫ۉ‬უLjᆌཚࡗ‫گ‬ፆੇ࣮ୟ‫࣮ݓ‬
एጚᇸLjᅺྺ໲ၻ‫ټ‬ஞ؋‫ୁۉ‬ăAGND๟ADCాև‫ܠ‬ຕఇ
ె႑ࡽ‫ں੊֖ڦ‬ăُᆅগՂႷᅜ৑੗ీ‫ۉڦگ‬ፆ૶থ‫ڟ‬ఇ
ె‫֫ں‬ăDGNDՂႷ૶থ‫ڟ‬ఇెईຕጴ‫֫ں‬Ljਏ༹๫ದዃ
ܸۨăOGND૶থ‫ڟ‬ຕጴဣཥ‫ں‬ă
ॺᅱՆ௨ሞഗॲူ‫ݛ‬քยຕጴ၍ୟLj‫ޏ‬ሶࣷॽሯำ᳘ࢇ዁
ႊೌăᆌሎႹఇెথ‫֫ں‬քยሞAD7671ူ‫ݛ‬LjᅜՆ௨ሯำ
᳘ࢇăCNVSTई้ዓ‫੺ڪ‬໏ൎ࣑႑ࡽᄲ๑ᆩຕጴ‫ेں‬ᅜೡ
ԸLjᅜ௨ॽሯำ‫ޖ‬พ‫ۉڟ‬ୟӱ‫ڦ‬ഄ໱և‫ݴ‬Ljܸ൐੺໏ൎ࣑
႑ࡽਨփీ੍ৎఇె႑ࡽୟ০ăᆌՆ௨ຕጴ႑ࡽᇑఇె႑
ࡽ঍۠ă‫ۉ‬ୟӱତৎ֫ฉ‫ڦ‬ጽ၍ᆌԵُ‫ؽ‬኱Ljᅜ३ၭ‫ۉ‬ୟ
ӱ‫ڦ‬ઍཚၳᆌă
एጚ‫ۉ‬უ‫ڦ‬ඁ᳘քਆ‫׉ݥ‬ዘᄲăඁ᳘‫ۉ‬ඹᆌ੍ৎADCLjժ
ᆩ‫ڦ੻ܸ܌‬ጽ၍૶থLj๑सิ‫ߌۉ‬ፌၭă
* ADDITIONAL PINS OMITTED FOR CLARITY
཮23. ๑ᆩ‫ز‬ႜዷऐఇ๕ᇑADSP-21065Lথ੨
ᆌᆩႷኪ
քਆ
AD7671Ⴀీೠࠚ
AD7671‫ڦ‬ೠࠚӱ၂๖କAD7671‫ླྀڦ‬४քਆăೠࠚӱ༫ॲ
Ԉઔጎದྜ฀൐ঢ়ࡗ֪๬‫ڦ‬ೠࠚӱĂ࿔‫ڗ‬ᅜतᆩᇀٗPCཚ
ࡗEval-Controlӱ੦዆ೠࠚӱ‫ॲ෉ڦ‬ă
Rev. B | Page 21 of 24
AD7671
ྔႚ؅٫
48ᆅগԋ႙຺‫ݛ‬Ռೝ‫ހ‬ጎ[LQFP]
(ST-48)
؅٫‫ڇ‬࿋ǖmm
0.75
0.60
0.45
9.00 BSC
SQ
1.60
MAX
37
48
36
1
0.15
0.05
SEATING
PLANE
10
6
2
1.45
1.40
1.35
SEATING
PLANE
PIN 1
7.00
BSC SQ
TOP VIEW
0.20
0.09
(PINS DOWN)
VIEW A
7
3.5
0
0.10 MAX
COPLANARITY
25
12
13
24
0.27
0.22
0.17
0.50
BSC
VIEW A
ROTATED 90 CCW
COMPLIANT TO JEDEC STANDARDS MS-026BBC
48ᆅগᆅগॐࠓႊೌप‫ހ‬ጎ[LFCSP]
(CP-48)
؅٫‫ڇ‬࿋ǖmm
7.00
BSC SQ
0.60 MAX
0.60 MAX
37
6.75
BSC SQ
TOP
VIEW
0.20
REF
1
25
24
12
13
5.50
REF
0.80 MAX
0.65 NOM
0.05 MAX
0.02 NOM
0.50 BSC
SEATING
PLANE
5.25
5.10 SQ
4.95
BOTTOM
VIEW
0.50
0.40
0.30
12 MAX
PIN 1
INDICATOR
48
36
PIN 1
INDICATOR
1.00
0.90
0.80
0.30
0.23
0.18
COPLANARITY
0.08
COMPLIANT TO JEDEC STANDARDS MO-220-VKKD-2
Rev. B | Page 22 of 24
PADDLE CONNECTED TO AGND.
THIS CONNECTION IS NOT
REQUIRED TO MEET THE
ELECTRICAL PERFORMANCES
AD7671
Ⴊ۩૦๏
࿋ዃ
ᄻஓ
2003౎4ሆ—ຕ਍๮֩ٗႪ۩ӲAืप‫ڟ‬Ⴊ۩ӲB
߸߀PulSAR჋ስ՗ ........................................................................................................................................................................................................ 1
߸߀۩ࠔኸళ ................................................................................................................................................................................................................ 5
߸߀཮5 .......................................................................................................................................................................................................................... 13
߸ႎ“ྔႚ؅٫”և‫ ݴ‬................................................................................................................................................................................................... 22
2002౎5ሆ—ຕ਍๮֩ٗႪ۩Ӳ0ืप‫ڟ‬Ⴊ۩ӲA
Պड“༬Ⴀ”և‫ ݴ‬.............................................................................................................................................................................................................. 1
Պड“߁ຎ”և‫ ݴ‬............................................................................................................................................................................................................. 1
“ׂ೗਋ঋ”և‫ݴ‬ሺे཮՗ ............................................................................................................................................................................................ 1
Պड“रຍࡀ߭”և‫ ݴ‬................................................................................................................................................................................................ 2–3
Պड՗I ............................................................................................................................................................................................................................. 3
Պड“ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ”և‫ ݴ‬........................................................................................................................................................................................ 5
Պड“۩ࠔኸళ”և‫ ݴ‬..................................................................................................................................................................................................... 5
ՊडTPC 4 ........................................................................................................................................................................................................................ 9
߸࣑TPC 9 ..................................................................................................................................................................................................................... 10
ሺेTPC 16 ................................................................................................................................................................................................................... 11
Պड՗III ....................................................................................................................................................................................................................... 13
Պड“ൻ‫ٷݣۯ‬ഗ჋ስ”և‫ ݴ‬..................................................................................................................................................................................... 15
߸࣑“एጚ‫ۉ‬უ๼෇”և‫ ݴ‬.......................................................................................................................................................................................... 15
߸࣑ST-48‫ހ‬ጎྔႚ .................................................................................................................................................................................................... 22
Rev. B | Page 23 of 24
AD7671
©2005–2010 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
C02567–0–5/03(B)
Rev. B | Page 24 of 24