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ADS8323 데이터시트 PDF




Burr-Brown Corporation에서 제조한 전자 부품 ADS8323은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 ADS8323 기능
기능 16-Bit/ 500kSPS/ microPower Sampling ANALOG-TO-DIGITAL CONVERTER
제조업체 Burr-Brown Corporation
로고 Burr-Brown Corporation 로고


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ADS8323 데이터시트, 핀배열, 회로
ADS8323 ®
ADS8323
SBAS224B DECEMBER 2001 REVISED MAY 2002
16-Bit, 500kSPS, microPower Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q HIGH-SPEED PARALLEL INTERFACE
q 500kSPS SAMPLING RATE
q LOW POWER: 85mW at 500kSPS
q BIPOLAR INPUT RANGE
q TQFP-32 PACKAGE
APPLICATIONS
q HIGH-SPEED DATA AQUISITION
q OPTICAL POWER MONITORING
q MOTOR CONTROL
q ATE
DESCRIPTION
The ADS8323 is a 16-bit, 500kSPS Analog-to-Digital Con-
verter (ADC) with an internal 2.5V reference. The device
includes a 16-bit capacitor-based SAR ADC with inherent
sample-and-hold. The ADS8323 offers a full 16-bit interface,
or an 8-bit option where data is read using two read cycles.
The ADS8323 is available in a TQFP-32 package and is
specified over the industrial –40°C to +85°C temperature
range.
SAR
+IN
IN
REFIN
REFOUT
ADS8323
S/H Amp
CDAC
Comparator
Internal
+2.5V Ref
Output Latches
and
Three State
Drivers
BYTE
Parallel
Data
Output
Conversion
and Control
Logic
CLOCK
CONVST
CS
RD
BUSY
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright © 2001, Texas Instruments Incorporated




ADS8323 pdf, 반도체, 판매, 대치품
TIMING CHARACTERISTICS(1)(2)
All specifications typical at 40°C to +85°C, +DVDD = +5V.
ADS8323Y
ADS8323YB
PARAMETER
SYMBOL
MIN TYP MAX MIN TYP MAX UNITS
Conversion Time
Acquisition Time
CLOCK Period
CLOCK HIGH Time
CLOCK LOW Time
CONVST LOW to CLOCK HIGH
CONVST LOW Time
CONVST LOW to BUSY HIGH
CS LOW to CONVST LOW
CONVST HIGH
CLOCK HIGH to BUSY LOW
CS HIGH
CS LOW to RD LOW
RD HIGH to CS HIGH
RD LOW Time
RD LOW to Data Valid
Data Hold from RD HIGH
BYTE Change to RD LOW(3)
RD HIGH Time
tCONV
tACQ
tC1
tW1
tW2
tD1
tW3
tD2
tD3
tW4
tD4
tW5
tD5
tD6
tW6
tD7
tD8
tD9
tW7
1.6
0.4
100
40
40
10
20
25
0
20
25
0
0
0
50
40
5
0
20
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES: (1) All input signals are specified with rise and fall times of 5ns, tR = tF = 5ns (10% to 90% of DVDD), and timed from a voltage level of (VIL + VIH) /2. (2)
See timing diagram, below. (3) BYTE is asynchronous; when BYTE is 0, bits 15 through 0 appear at DB15-DB0. When BYTE is 1, bits 15 through 8 appear on
DB7-DB0. RD may remain LOW between changes in BYTE.
TIMING DIAGRAM
tC1
CLOCK
tW1
1
Acquisition
tD1
CONVST
tW3
tW2
2345
Conversion
tCONV
BUSY
tD2
BYTE
CS
tD3
RD
DB15-D8
DB7-D0
17 18 19 20 1 2 3 4
Acquisition
tACQ
tW4
tD4
tD5
tD7
tW5
tD6
tW6
tD8
Bits 15-8
Bits 7-0
17 18 19 20
Bits 15-8
Bits 7-0
tD9
tW7
FF
Bits 15-8
4 ADS8323
www.ti.com
SBAS224B

4페이지










ADS8323 전자부품, 판매, 대치품
TYPICAL CHARACTERISTICS (Cont.)
At 40°C to +85°C, +DVDD = +AVDD = +5V, VREF = +2.5V, fSAMPLE = 500kSPS, and fCLK = 20 fSAMPLE, unless otherwise specified.
0.6
0.4
0.2
0
0.2
0.4
0.6
40
20
DNLvs TEMPERATURE
0 20 40 60
Temperature (°C)
45.8
30.5
15.3
0
15.3
30.5
45.8
80 100
GAIN ERROR vs TEMPERATURE
10
762.9
8 610.4
6 457.8
4 305.2
2 152.6
00
2
40
20
0 20 40 60
Temperature (°C)
152.6
80 100
2.0
1.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
40
20
VREF vs TEMPERATURE
0 20 40 60
Temperature (°C)
26.2
13.1
0
13.1
26.2
39.3
52.4
65.5
78.6
91.8
104.9
80 100
IQ vs TEMPERATURE
0.8
0.4
0
0.4
0.8
1.2
40
20
0 20 40 60
Temperature (°C)
80 100
BIPOLAR ZERO vs TEMPERATURE
1.4
106.8
1 76.3
0.6 45.8
0.2 15.3
0.2
15.3
0.6
45.8
1
40
20
0 20 40 60
Temperature (°C)
76.3
80 100
POSITIVE FULL-SCALE vs TEMPERATURE
5.4
412.0
4.4 335.7
3.4 253.4
2.4 183.1
1.4 106.8
0.4 30.5
0.6
40
20
0 20 40 60
Temperature (°C)
45.8
80 100
ADS8323
SBAS224B
www.ti.com
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