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PDF AD5370 Data sheet ( Hoja de datos )
| Número de pieza | AD5370 | |
| Descripción | Voltage-Output DACs | |
| Fabricantes | Analog Devices | |
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Hay una vista previa y un enlace de descarga de AD5370 (archivo pdf) en la parte inferior de esta página. Total 29 Páginas | ||
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40-Channel,16-Bit,
Serial Input, Voltage Output DAC
AD5370
FEATURES
40-channel DAC in a 64-lead LFCSP and a 64-lead LQFP
Guaranteed monotonic to 16 bits
Maximum output voltage span of 4 × VREF (20 V)
Nominal output voltage span of −4 V to +8 V
Multiple, independent output spans available
System calibration function allowing user-programmable
offset and gain
Channel grouping and addressing features
Thermal shutdown function
DSP/microcontroller-compatible serial interface
SPI serial interface
2.5 V to 5.5 V digital interface
Digital reset (RESET)
Clear function to user-defined SIGGNDx
Simultaneous update of DAC outputs
APPLICATIONS
Level setting in automatic test equipment (ATE)
Variable optical attenuators (VOA)
Optical switches
Industrial control systems
Instrumentation
FUNCTIONAL BLOCK DIAGRAM
DVCC VDD VSS AGND DGND
LDAC
SYNC
SDI
SCLK
SDO
BUSY
RESET
CLR
CONTROL
REGISTER
16
8 A/B SELECT 8
TO
REGISTER
MUX2
16 X1A
REGISTER
16
X2A
16 REGISTER
16 X1B
X2B
16 REGISTER
16
REGISTER
16 M REGISTER
16
C REGISTER
SERIAL
INTERFACE
16 X1A
REGISTER
16 X1B
16 REGISTER
16 M REGISTER
C REGISTER
16
16
16
X2A
16 REGISTER
X2B
REGISTER
STATE
MACHINE
16
8 A/B SELECT 8
TO
REGISTER
MUX2
16 X1A
REGISTER
16
X2A
16 REGISTER
16 X1B
X2B
16 REGISTER
16
REGISTER
16 M REGISTER
16
C REGISTER
AD5370
16 X1A
REGISTER
16 X1B
16 REGISTER
16 M REGISTER
C REGISTER
16
16
16
X2A
16 REGISTER
X2B
REGISTER
16
OFS0 16
REGISTER
OFFSET
DAC 0
BUFFER
GROUP 0
BUFFER OUTPUT BUFFER
AND
16
DAC 0 16
REGISTER
DAC 0
POWER-DOWN
CONTROL
16
DAC 7 16
REGISTER
DAC 7
OUTPUT BUFFER
AND
POWER-DOWN
CONTROL
16
OFS1 16
REGISTER
OFFSET
DAC 1
BUFFER
GROUP 1
BUFFER OUTPUT BUFFER
AND
16
DAC 0 16
REGISTER
DAC 0
POWER-DOWN
CONTROL
16
DAC 7 16
REGISTER
DAC 7
OUTPUT BUFFER
AND
POWER-DOWN
CONTROL
GROUP 2 TO GROUP 4
ARE THE SAME AS GROUP 1
Figure 1.
SIGGND2 SIGGND3 SIGGND4
VREF0
VOUT0
VOUT1
VOUT2
VOUT3
VOUT4
VOUT5
VOUT6
VOUT7
SIGGND0
VREF1
VOUT8
VOUT9
VOUT10
VOUT11
VOUT12
VOUT13
VOUT14
VOUT15
SIGGND1
VOUT16
TO
VOUT39
Rev. 0
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2008 Analog Devices, Inc. All rights reserved.
1 page  
AD5370
SPECIFICATIONS
PERFORMANCE SPECIFICATIONS
DVCC = 2.5 V to 5.5 V; VDD = 9 V to 16.5 V; VSS = −16.5 V to −8 V; VREF = 3 V; AGND = DGND = SIGGND = 0 V; CL = open circuit;
RL = open circuit; gain (M), offset (C), and DAC offset registers at default values; all specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
ACCURACY
Resolution
Integral Nonlinearity
Differential Nonlinearity
Zero-Scale Error
Full-Scale Error
Gain Error
Zero-Scale Error2
Full-Scale Error2
Span Error of Offset DAC
Min Type Max Unit
16 Bits
−4 +4 LSB
−1 +1 LSB
−10 +10 mV
−10 +10 mV
0.1 % FSR
1 LSB
1 LSB
−35 +35 mV
VOUT Temperature Coefficient
(VOUT0 to VOUT39)
DC Crosstalk2
5
120
ppm FSR/°C
μV
REFERENCE INPUTS (VREF0, VREF1)2
VREF Input Current
VREF Range
SIGGND INPUT (SIGGND0 to SIGGND4)2
DC Input Impedance
Input Range
SIGGND Gain
OUTPUT CHARACTERISTICS2
Output Voltage Range
Nominal Output Voltage Range
Short-Circuit Current
Load Current
Capacitive Load
DC Output Impedance
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Current
CLR High Impedance Leakage
Current
Input Capacitance2
DIGITAL OUTPUTS (SDO, BUSY)
Output Low Voltage
Output High Voltage (SDO)
SDO High Impedance Leakage
Current
High Impedance Output
Capacitance2
−10
2
50
−0.5
0.995
VSS + 1.4
−4
−1
1.7
2.0
−1
−20
DVCC − 0.5
−5
10
+10 μA
5V
+0.5
1.005
kΩ
V
VDD − 1.4
+8
15
+1
2200
0.5
V
V
mA
mA
pF
V
V
0.8 V
+1 μA
+20 μA
10 pF
0.5 V
V
+5 μA
pF
Test Conditions/Comments1
Guaranteed monotonic by design
Before calibration
Before calibration
After calibration
After calibration
See the Offset DAC Channels section for
details
Includes linearity, offset, and gain drift
Typically 20 μV; measured channel at midscale,
full-scale change on any other channel
Per input, typically ±30 nA
±2% for specified operation
Typically 55 kΩ
ILOAD = 1 mA
VOUTx to DVCC, VDD, or VSS
DVCC = 2.5 V to 3.6 V
DVCC = 3.6 V to 5.5 V
DVCC = 2.5 V to 5.5 V
Excluding the CLR pin
Sinking 200 μA
Sourcing 200 μA
Rev. 0 | Page 4 of 28
5 Page 
AD5370
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
RESET 1
BUSY 2
VOUT27 3
SIGGND3 4
VOUT28 5
VOUT29 6
VOUT30 7
VOUT31 8
VOUT32 9
VOUT33 10
VOUT34 11
VOUT35 12
SIGGND4 13
VOUT36 14
VOUT37 15
VDD 16
PIN 1
INDICATOR
AD5370
TOP VIEW
(Not to Scale)
48 VOUT5
47 VOUT4
46 SIGGND0
45 VOUT3
44 VOUT2
43 VOUT1
42 VOUT0
41 VREF0
40 VOUT23
39 VOUT22
38 VOUT21
37 VOUT20
36 VSS
35 VDD
34 SIGGND2
33 VOUT19
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
RESET 1
BUSY 2
VOUT27 3
SIGGND3 4
VOUT28 5
VOUT29 6
VOUT30 7
VOUT31 8
VOUT32 9
VOUT33 10
VOUT34 11
VOUT35 12
SIGGND4 13
VOUT36 14
VOUT37 15
VDD 16
PIN 1
INDICATOR
AD5370
TOP VIEW
(Not to Scale)
48 VOUT5
47 VOUT4
46 SIGGND0
45 VOUT3
44 VOUT2
43 VOUT1
42 VOUT0
41 VREF0
40 VOUT23
39 VOUT22
38 VOUT21
37 VOUT20
36 VSS
35 VDD
34 SIGGND2
33 VOUT19
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Figure 6. 64-Lead LFCSP Pin Configuration
Figure 7. 64-Lead LQFP Pin Configuration
Table 6. Pin Function Descriptions
Pin No.
Mnemonic
1 RESET
2 BUSY
3, 5 to 12, 14, 15, 19 to
24, 26 to 33, 37 to 40, 42
to 45, 47 to 50, 60 to 62
46
25
34
4
13
41
18
VOUT0 to VOUT39
SIGGND0
SIGGND1
SIGGND2
SIGGND3
SIGGND4
VREF0
VREF1
Description
Digital Reset Input.
BUSY Input/Output (Active Low). BUSY is open-drain when an output. See the BUSY and
LDAC Functions section for more information.
DAC Outputs. Buffered analog outputs for each of the 40 DAC channels. Each analog
output is capable of driving an output load of 10 kΩ to ground. Typical output impedance
of these amplifiers is 0.5 Ω.
Reference Ground for DAC 0 to DAC 7. VOUT0 to VOUT7 are referenced to this voltage.
Reference Ground for DAC 8 to DAC 15. VOUT8 to VOUT15 are referenced to this voltage.
Reference Ground for DAC 16 to DAC 23. VOUT16 to VOUT23 are referenced to this voltage.
Reference Ground for DAC 24 and DAC 31. VOUT24 to VOUT31 are referenced to this voltage.
Reference Ground for DAC 32 to DAC 39. VOUT32 to VOUT39 are referenced to this voltage.
Reference Input for DAC 0 to DAC 7. This reference voltage is referred to AGND.
Reference Input for DAC 8 to DAC 39. This reference voltage is referred to AGND.
Rev. 0 | Page 10 of 28
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet AD5370.PDF ] | |
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