DataSheet8.cn


PDF ( 数据手册 , 数据表 ) AD1376

零件编号 AD1376
描述 High Speed 16-Bit A/D Converters
制造商 Analog Devices
LOGO Analog Devices LOGO 


1 Page

No Preview Available !

AD1376 数据手册, 描述, 功能
Complete, High Speed
16-Bit A/D Converters
AD1376/AD1377
FEATURES
Complete 16-bit converters with reference and clock
±0.003% maximum nonlinearity
Digital output data is provided in parallel form with
corresponding clock and status outputs. All digital inputs and
outputs are TTL-compatible.
No missing codes to 14 bits over temperature
Fast conversion
17 µs to 16 bits (AD1376)
10 µs to 16 bits (AD1377)
Short cycle capability
Adjustable clock rate
Parallel outputs
For the AD1376, the serial output function is no longer
available after date code 0111. For the AD1377, the serial output
function is no longer available after date code 0210. The option
of applying an external clock on the CONVERT START pin to
slow down the internally set conversion time is no longer
supported for either part.
Low power
645 mW typical (AD1376)
585 mW typical (AD1377)
Industry-standard pinout
PRODUCT HIGHLIGHTS
1. The AD1376/AD1377 provide 16-bit resolution with a
maximum linearity error of ±0.003% (1/2 LSB14) at 25°C.
GENERAL DESCRIPTION
The AD1376/AD1377 are high resolution, 16-bit analog-to-
digital converters with internal reference, clock, and laser-
trimmed thin-film applications resistors. The AD1376/AD1377
are excellent for use in high resolution applications requiring
moderate speed and high accuracy or stability over commercial
temperature ranges (0°C to 70°C). They are packaged in
compact 32-lead, ceramic seam-sealed (hermetic), dual in-line
packages (DIP). Thin-film scaling resistors provide bipolar
input ranges of ±2.5 V, ±5 V, and ±10 V and unipolar input
ranges of 0 V to +5 V, 0 V to +10 V, and 0 V to +20 V.
2. The AD1376 conversion time is 14 µs (typical) short cycled
to 14 bits, and 16 µs to 16 bits.
3. The AD1377 conversion time is 8 µs (typical) short cycled
to 14 bits, and 9 µs to 16 bits.
4. Two binary codes are available on the digital output. They
are CSB (complementary straight binary) for unipolar input
voltage ranges and COB (complementary offset binary) for
bipolar input ranges. Complementary twos complement
(CTC) coding may be obtained by inverting Pin 1 (MSB).
5. The AD1376/AD1377 include internal reference and clock
with external clock rate adjust pin, and parallel digital outputs.
FUNCTIONAL BLOCK DIAGRAM
(MSB) BIT 1 1
BIT 2 2
BIT 3 3
BIT 4 4
BIT 5 5
BIT 6 6
BIT 7 7
BIT 8 8
BIT 9 9
BIT 10 10
BIT 11 11
BIT 12 12
(LSB FOR 13 BITS) BIT 13 13
(LSB FOR 14 BITS) BIT 14 14
BIT 15 15
BIT 16 16
AD1376/AD1377
16-BIT SAR
COMPARATOR
32 SHORT CYCLE
31 CONVERT START
REFERENCE
30 +5V DC SUPPLY VL
29 GAIN ADJUST
7.5k
28 +15V DC SUPPLY VCC
27 COMPARATOR IN
26 BIPOLAR OFFSET
25 +10V
3.75k3.75k
24 +20V
23 CLK RATE CTRL
22 ANALOG COMMON
21 –15V DC SUPPLY VEE
20 CLOCK OUT
CLOCK
19 DIGITAL COMMON
18 STATUS
17 NC
Figure 1.
Rev. D
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.
Specifications subject to change without notice. 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 owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.481.3113 © 2005 Analog Devices, Inc. All rights reserved.







AD1376 pdf, 数据表
AD1376/AD1377
Table 4. Input Scaling Connections
Input Signal Line
Output Code
Connect Pin 26 to
±10 V
COB Pin 271
±5 V COB Pin 271
±2.5 V
COB Pin 271
0 V to +5 V
CSB
Pin 22
0 V to +10 V
CSB
Pin 22
0 V to +20 V
CSB
Pin 22
1 Pin 27 is extremely sensitive to noise and should be guarded by ANALOG COMMON.
Connect Pin 24 to
Input Signal
Open
Pin 271
Pin 271
Open
Input Signal
Connect Input Signal to
Pin 24
Pin 25
Pin 25
Pin 25
Pin 25
Pin 24
10V SPAN
25
R2
3.75k
24
20V SPAN
COMP IN 27
R1
3.75k
FROM DAC
TO
SAR
BIPOLAR
OFFSET
26
ANALOG 22
COMMON
7.5k
VREF COMPARATOR
Figure 10. Input Scaling Circuit
CALIBRATION (14-BIT RESOLUTION EXAMPLES)
External zero adjustment and gain adjustment potentiometers,
connected as shown in Figure 5 and Figure 6, are used for
device calibration. To prevent interaction of these two
adjustments, zero is always adjusted first and then gain. Zero is
adjusted with the analog input near the most negative end of the
analog range (0 for unipolar and minus full scale for bipolar
input ranges). Gain is adjusted with the analog input near the
most positive end of the analog range.
0 V to 10 V Range
Set analog input to +1 LSB14 = 0.00061 V. Adjust zero for digital
output = 11111111111110. Zero is now calibrated. Set analog
input to +FSR − 2 LSB = 9.99878 V. Adjust gain for
00000000000001 digital output code; full scale (gain) is now
calibrated. Half-scale calibration check: set analog input to
5.00000 V; digital output code should be 01111111111111.
−10 V to +10 V Range
Set analog input to −9.99878 V; adjust zero for 1111111111110
digital output (complementary offset binary) code. Set analog
input to 9.99756 V; adjust gain for 00000000000001 digital
output (complementary offset binary) code. Half-scale
calibration check: set analog input to 0.00000 V; digital output
(complementary offset binary) code should be 01111111111111.
+15V
10k
300k
TO
100k
GAIN
ADJ
–15V
0.01µF
29
AD1376/
AD1377
REF
CONTROL
16-BIT SUCCESSIVE
APPROMIXATION REGISTER
KEEP/
REJECT
16-BIT DAC
+15V
28
+
1µF
22
+
1µF
–15V
21
7.5k
IOS = 1.3mA
30 19 23 26
IIN
27 24 25
A
NOTE:
ANALOG (
+5V
+1µF
+15V
1.8M
10k
TO
100k
ZERO
ADJ
–15V
eIN
(0V TO +10V)
) AND DIGITAL ( ) GROUNDS ARE NOT TIED INTERNALLY AND MUST BE CONNECTED EXTERNALLY.
Figure 11. Analog and Power Connections
for Unipolar 0 V to 10 V Input Range
+15V
10k
300k
TO
100k
GAIN
ADJ
–15V
0.01µF
29
AD1376/
AD1377
REF
CONTROL
16-BIT SUCCESSIVE
APPROMIXATION REGISTER
KEEP/
REJECT
16-BIT DAC
+15V
28
+
1µF
22
+
1µF
–15V
21
7.5k
IOS = 1.3mA
30 19 23 26
IIN
27 24
25
A
NOTE:
ANALOG (
+5V
+1µF
+15V
1.8M
10k
TO
100k
ZERO
ADJ
–15V
eIN
(–10V TO +10V)
) AND DIGITAL ( ) GROUNDS ARE NOT TIED INTERNALLY AND MUST BE CONNECTED EXTERNALLY
Figure 12. Analog and Power Connections
for Bipolar −10 V to +10 V Input Range
Other Ranges
Representative digital coding for 0 V to +10 V and −10 V to
+10 V ranges is given in the 0 V to 10 V Range section and
−10 V to +10 V Range section. Coding relationships and
calibration points for 0 V to +5 V, −2.5 V to +2.5 V, and −5 V to
+5 V ranges can be found by halving proportionally the
corresponding code equivalents listed for the 0 V to +10 V and
−10 V to +10 V ranges, respectively, as indicated in Table 5.
Rev. D | Page 8 of 12














页数 12 页
下载[ AD1376.PDF 数据手册 ]


分享链接

Link :

推荐数据表

零件编号描述制造商
AD1376High Speed 16-Bit A/D ConvertersAnalog Devices
Analog Devices
AD1377High Speed 16-Bit A/D ConvertersAnalog Devices
Analog Devices

零件编号描述制造商
STK15C88256-Kbit (32 K x 8) PowerStore nvSRAMCypress Semiconductor
Cypress Semiconductor
NJM4556DUAL HIGH CURRENT OPERATIONAL AMPLIFIERNew Japan Radio
New Japan Radio
EL1118-G5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLEREverlight
Everlight


DataSheet8.cn    |   2020   |  联系我们   |   搜索  |  Simemap