ADC803 [BB]
High Speed ANALOG-TO-DIGITAL CONVERTER; 高速模拟 - 数字转换器
| 型号： | ADC803 |
| 厂家： | 
BURR-BROWN CORPORATION |
| 描述： | High Speed ANALOG-TO-DIGITAL CONVERTER |
| 文件： | 总4页 (文件大小：49K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
ADC803
High Speed
ANALOG-TO-DIGITAL CONVERTER
FEATURES
DESCRIPTION
● 12-BIT RESOLUTION
The ADC803 is a high speed hybrid successive
approximation analog-to-digital converter utilizing
laser-trimmed thin film components.
● LINEARITY ERROR: ±0.12%, max
(C Grade)
It is complete with internal reference, clock, and
comparator, and is packaged in a 32-pin metal pack-
age. Conversion time is set at the factory to 1.5µs.
● NO MISSING CODES: –55°C to +125°C
(S Grade)
● HIGH SINAD RATIO: 72dB
● LOW HARMONIC DISTORTION: –73dB
● CONVERSION TIME: 500ns, 8 Bits
670ns, 10 Bits
With user-adjusted conversion time set at 1µs, ±1LSB
accuracy can be achieved. The gain and offset errors
may be externally trimmed to zero.
Internal scaling resistors are provided for the selection
of analog signal input ranges of 0V to –10V, ±5V,
and ±10V.
1.5µs, 12 Bits
Output codes available are complementary binary
for unipolar inputs and bipolar offset binary for
bipolar inputs.
All digital inputs and outputs are TTL-compatible.
Power supply requirements are ±15V and +5V.
Convert Command
Parallel
Digital
Output
Input
Range
Select
12-Bit
Successive Approx.
Register (SAR)
Comparator In
Bipolar Offset
Clock Rate Control
Clock Out
Clock
Status
International Airport Industrial Park
•
Mailing Address: PO Box 11400
Cable: BBRCORP
•
Tucson, AZ 85734
•
Street Address: 6730 S. Tucson Blvd.
• Tucson, AZ 85706
Tel: (520) 746-1111 Twx: 910-952-1111
•
•
•
Telex: 066-6491
•
FAX: (520) 889-1510
•
Immediate Product Info: (800) 548-6132
©1983 Burr-Brown Corporation
PDS-493D
Printed in U.S.A. October, 1993
SPECIFICATIONS
At +25°C, rated power supplies, 1.5µs conversion time, and after 6-minute warm-up, unless otherwise noted.
ADC803CM
TYP
ADC803BM
TYP
ADC803SM
TYP
PARAMETER
RESOLUTION
INPUTS
MIN
MAX
MIN
MAX
MIN
MAX
UNITS
12
12
12
Bits
ANALOG
Voltage Ranges: Bipolar
Unipolar
Impedance: –10V to 0V, ±5V
±10V
±5, ±10
0 to –10
1.4
*
*
*
*
*
*
*
*
V
V
kΩ
kΩ
2.4
DIGITAL
Convert Command
Logic Loading
Negative pulse 50ns wide (min) trailing edge (0 to 1) initiates conversion.
4
*
*
TTL Loads
TRANSFER CHARACTERISTICS
ACCURACY
Gain Error (1)
Offset Error(1):Unipolar
Bipolar
±0.04
±0.05
±0.02
±0.1
±0.2
±0.1
±0.08
±0.07
*
±0.2
±0.3
±0.2
±0.04
*
*
±0.1
*
*
%
% of FSR(2)
% of FSR
Linearity Error:
1.5µs Conversion Time
1.0µs Conversion Time
Differential Linearity Error:
1.5µs Conversion Time
1.0µs Conversion Time
Inherent Quantization Error
±0.009
±0.015
±0.012
±0.020
±0.020
±0.020
±0.012
±0.015
% of FSR
% of FSR
±0.020
±0.012
±0.015
±0.024
*
*
*
*
% of FSR
% of FSR
LSB
±0.024
*
1/2
POWER SUPPLY SENSITIVITY
Gain and Offset: +15VDC
–15VDC
+5VDC
Conversion Time: +15VDC
–15VDC
±0.0036
±0.0005
±0.001
±0.7
None
±0.8
*
*
*
*
*
*
*
*
*
*
*
*
% of FSR/%VCC
% of FSR/%VCC
% of FSR/%VDD
%/%VCC
%/%VCC
%/%VDD
+5VDC
CONVERSION TIME
Factory Set
Range of Adjustments
1.3
0.8
1.5
2.2
*
*
*
*
*
*
*
*
µs
µs
DRIFT
Gain
Offset: Unipolar
±10
±2
±3
±30
±7
±10
±15
±3
±5
*
*
*
*
*
*
*
*
*
ppm of FSR/°C
ppm of FSR/°C
ppm of FSR/°C
Bipolar
Linearity Error
–25°C to +85°C:
1.5µs Conversion Time
1.0µs Conversion Time
–55°C to +125°C:
1.7µs Conversion Time, max(4)
Differential Linearity Error
–25°C to +85°C:
1.5µs Conversion Time
1.0µs Conversion Time
–55°C to +125°C:
1.7µs Conversion Time, max(4)
Conversion Time
±0.012
±0.015
±0.018
±0.018
+85
±0.024
±0.024
*
*
*
% of FSR
% of FSR
±0.020
±0.015
±0.024
% of FSR
±0.012
±0.015
% of FSR
% of FSR
±0.024
±0.1
±0.015
*
±0.024
% of FSR
% of FSR
*
No Missing Code Temp. Range:
1.5µs Conversion Time
1.7µs Conversion Time, max(4)
–25
*
°C
°C
–55
+125
OUTPUT
DIGITAL DATA
Parallel
Output Codes: Unipolar
Bipolar
Complementary Straight Binary
*
*
*
*
Bipolar Offset Binary
Output Drive
Status
Status Output Drive
Internal Clock
Clock Output Drive
Frequency (without external clock adj.)
6
*
*
*
*
*
*
TTL Loads
TTL Loads
Logic “1” During Conversion
6
*
*
3
TTL Loads
MHz
8
*
*
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
2
ADC803
SPECIFICATIONS (CONT)
At +25°C, rated power supplies, 1.5µs conversion time, and after 6-minute warm-up, unless otherwise noted.
ADC803CM
TYP
ADC803BM
TYP
ADC803SM
TYP
PARAMETER
MIN
MAX
MIN
MAX
MIN
MAX
UNITS
POWER SUPPLY REQUIREMENTS
Power Consumption
Rated Voltage: Analog (±VCC
Digital (VDD
Supply Drain: +15V
)
±14.25
+4.75
±15
+5
+27
–38
+180
±15.75
+5.25
+32
–55
+210
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
VDC
VDC
mA
mA
mA
)
–15V
+5V
TEMPERATURE RANGE (Ambient)
Specification
Storage
–25
–55
+85
+125
*
*
*
*
–55
*
+125
*
°C
°C
* Same specification as for ADC803CM.
NOTES: (1) Adjustable to zero. See Optional Gain and Offset Adjustment section. (2) FSR means Full Scale Range. For example, unit connected for ±10V has
20V FSR. (3) See Optional Clock Rate Control section. For faster conversion time at less resolution, see section on External Short Cycle. (4) Conversion time is
factory-set at approximately 1.4µs at +25°C. As temperature increases, the conversion time increases. At +125°C the conversion time will be no more than 1.7µs.
No Missing Codes is guaranteed over –55°C to +125°C provided the conversion time is allowed to increase with temperature.
ADC803 dynamic performance characteristics are described in a report titled “Analogue-to-Digital Converter Performance Tests Using the Fast Fourier Transform”
by R. A. Belcher, University College of Swansea, Wales, UK. (available from Burr-Brown on letterhead request).
CONNECTION DIAGRAM
(MSB) Bit 1
1
2
3
4
5
6
7
8
9
32 Analog Common
Reference
Bit 2
31 +15VDC Supply (+VCC)
Bit 3
30 –15VDC Supply (–VCC
29 Bipolar Offset
28 Analog Common
27 Sense
)
Bit 4
Bit 5
Bit 6
+5VDC (VDD) Supply
26 Comparator In
25 10V
1kΩ
2kΩ
Digital Common
(1)
24 20V
Status 10
Bit 7 11
Bit 8 12
Bit 9 13
Bit 10 14
Bit 11 15
Bit 12 16
23 –15VDC Supply (–VCC
)
22 +5VDC Supply (VDD
)
12-Bit SAR
21 Digital Common
20 +15VDC Supply (+VCC
19 Clock Rate Control
18 Convert Command
17 Clock Out
)
545Ω
Comparator
Clock
NOTE: (1) Serial data is not guaranteed.
ORDERING INFORMATION
ABSOLUTE MAXIMUM RATINGS
Analog Supply Voltage To Analog Common .................................... ±18V
Digital Supply Voltage To Digital Common......................................... +7V
Digital Controls Inputs ...................................................................... +5.5V
Analog Inputs ..................................................................................... ±15V
Operating Temperature: Ambient .................................................. +125°C
Case....................................................... +135°C
ADC803
X
M
Q
Basic Model Number
Performance Grade Code
B, C = –25°C to +85°C
S = –55°C to +125°C
Storage Temperature..................................................................... +125°C
Package Code
M = Metal DIP
Reliability Screening
Q = Q-Screened
PACKAGE INFORMATION
PACKAGE DRAWING
MODEL
PACKAGE
NUMBER(1)
ADC803
32-Pin Metal
116
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix D of Burr-Brown IC Data Book.
®
3
ADC803
This datasheet has been download from:
www.datasheetcatalog.com
Datasheets for electronics components.
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