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PDF MP7680 Data sheet ( Hoja de datos )
| Número de pieza | MP7680 | |
| Descripción | 5 V CMOS 12-Bit Quad Double-Buffered Multiplying Digital-to-Analog Converter | |
| Fabricantes | Exar Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MP7680 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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heet4U.com MP7680FEA TURES
S· Exar Pioneered Segmented DAC Approach
ta· Four Double-Buffered 12-bit DACs on a Single Chip
a· Independent Reference Inputs
.D· Lowest Gain Error in a Multiple DAC Chip
· Guaranteed Monotonic
w· TTL/5 V CMOS Compatible Inputs
w· Industry Standard Digital Interface
w· Four Quadrant Multiplication
m· Latch-Up Free
5 V CMOS 12-Bit
Quad Double-Buffered Multiplying
Digital-to-Analog Converter
June 2000-2
BENEFITS
· Reduced Board Space; Lower System Cost.
· Independent Control of DACs
· Excellent DAC-to-DAC Matching and Tracking
APPLICA TIONS
· Function Generators
· Automatic Test Equipment
· Precision Process Controls
· Recording Studio Control Boards
.coGENERAL DESCRIPTIONS
UThe MP7680 and the integrate four 12-bit four-quadrant-
t4multiplying DACs with independent reference inputs and
excellent matching characteristics. The MP7680 grades
eoffer 1/2, 1 and 2 LSB of relative accuracy. The superior
offers a low 2 LSB of gain error.
Each DAC has double-buffering (an 8 and 4-bit latch and
a 12-bit latch) between the data bus (DB11 - DB0) and the
DAC. The internal 4-bit mux allows the use of 8 or 16-bit
buses. The flexible latch control logic allows to update
one or more DACs simultaneously.
SheORDERING INFORMA TION
taPackage
Type
aPlastic Dip
.DPlastic Dip
PQFP
PQFP
Temperature
Range
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
Part No.
MP7680JN
MP7680KN
MP7680JE
MP7680KE
INL
(LSB)
+2
+1
+2
+1
DNL
(LSB)
+4
+2
+4
+2
Gain Error
(LSB)
+16
+16
+16
+16
www w.DataSheet4U.comRev. 3.10
wwE1998
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z (510) 668-7017
1 page  
MP7680
ELECTRICAL CHARACTERISTICS
(V D D = + 5 V, V R E F = +10 V, IO U T 1 = IO U T 2 = DGND = AGND = 0 V Unless Otherwise Noted)
Parameter
Symbol
ST ATIC PERFORMANCE 1
Resolution (All Grades)
N
Integral Non-Linearity
(Relative Accuracy)
K
J
INL
Differential Non-Linearity
K
J
DNL
Gain Error
K
J
GE
Gain Temperature Coefficient2
Power Supply Rejection Ratio
TCGE
PSRR
Output Leakage Current
IOUT
DYNAMIC PERFORMANCE 2
Current Settling Time
tS
REFERENCE INPUT
Input Resistance
Voltage Input Range2
RIN
VIN
DIGIT AL INPUTS
Input High Voltage
Input Low Voltage
Input Current
Input Capacitance2
Data
Control
ANALOG OUTPUTS 2
VIH
VIL
ILKG
CIN
CIN
Output Capacitance
COUT1
COUT1
COUT2
COUT2
25 °C
Min Typ Max
12
+1
+2
+1
+4
+16
+16
+50
+50
1.0
35 7
+10 +25
2.4
0.8
+1
7.0
7.0
100
50
50
100
Tmin to Tmax
Min Max
Units
Test Conditions/Comments
12 Bits
LSB
+1
+2
Best Fit Straight Line Spec.
(Max INL - Min INL) / 2
+2.0
+4.0
LSB
LSB
+16
+16
Using Internal RFB
+2 ppm/°C DGain/DTemperature
+70
+200
ppm/%
nA
ms
|DGain/DVDD| DVDD = + 5%
IOUT1 VIN = 0 V
IOUT2 VIN = VDD
RL=100W, CEXT=13pF
Full scale change to 1/2 LSB
3 7 kW
V
2.4 V
0.8 V
+4 mA
pF
pF
VIN = 0 V and VDD
pF DAC all 1’s
pF DAC all 0’s
pF DAC all 1’s
pF DAC all 0’s
Rev. 3.10
5
5 Page 
MP7680
+15 V
2
+10 V 6
REF01
VREFA
+10 V
7
10k
10k
14
4
5k
+
10 V
VREFB
5k
4
+
VREFC
5V
27
REF02
+5 V 6
2
+15 V
10k 10k
34
+5 V
VREFD
DAC A
DAC B
DAC C
DAC D
RFBA 8
IOUT1A 9
IOUT2A 10
RFBB
13
IOUT1B 12
+
IOUT2B 11 +
RFBC
28
IOUT1C 29
IOUT2C 30
RFBD
33
IOUT1D 32
+
IOUT2D 31 +
VOUTA
0 V to -10 V
VOUTB
0 V to +10 V
VOUTC
0 V to +5 V
VOUTD
0 V to -5 V
Figure 10. Digitally Programmable Quad Voltage Output + 10 V, + 5 V
Left
Channel
Input
+
+
Right
Channel
Input
RFBA
DAC A
RFBB
DAC B
RFBC
DAC C
RFBD
DAC D
RA
+
+
RD +
+
Left
Channel
Output
(+10 V MAX)
+ 0.6 V
+5 V
10k 1.2 V
10k
Right
Channel
Output
(+10 V MAX)
MP5010
Matched Pairs:
RFBA to RA
RFBD to RD
DAC A
DAC B
DAC C
DAC D
+ VOUTA
33k
10k
+ VOUTB
33k
10k
+ VOUTC
33k
10k
+ VOUTD
33k
10k
Figure 11. “Clickless” Audio Attenuator/Amplifier
Figure 12. Quad DAC for Single +5 V Supply
Rev. 3.10
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MP7680.PDF ] | |
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