MC6890 CONVERTER Datasheet

MC6890 Datasheet PDF, Equivalent


Part Number

MC6890

Description

8-BIT D-TO-A CONVERTER

Manufacture

Motorola

Total Page 7 Pages
Datasheet
Download MC6890 Datasheet


MC6890
® MOTOROLA
Advance InforIDation
MPU-BUS-COMPATIBlE
8-BIT 0-TO-A CONVERTER
The MC6890 is a self-contained, bus-compatible, 8 bit (±0.19%
accuracy) D-to-A converter system capable of interfacing directly
with 8-bit microprocessors.
Available in both commercial and military temperature ranges, this
monolithic converter contains master/slave registers to prevent
transparency to data transitions during active enable; a laser-
trimmed, low-TC, 2.5 V precision bandgap reference; and high
stability, laser-trimmed, thin-film resistors for both reference input
and output span and bipolar offset control.
A reset pin provides for overriding stored data and forcing lout
to zero.
• Direct Data Bus Link with All Popular TIL Level MPU's
• ±1 /2 LSB Nonlinearity Over Temperature
• Fast Settling Time: 200 ns Typ
• Internal 2.5-V Precision Laser-Trimmed Voltage Reference (May
Also Be Used Externally)
• Minimum Enable Pulse Width: 70 ns
• Fast Enable: 10 ns Maximum Data Hold Time
• Reset Pin to Override Data
• Output Voltage Ranges: +5, +10, +20, or ±2.5, ±5, ±1 0 Volts
• Low Power: 90 mW Typ
• +5 V and -5 V to -15 V Supplies
OPERATION WITH AN MPU
Clock,
Control,
and
Address
Bus
Microprocessor
Data Bus
Data
Bus
MC6890
8-BIT
MPU-BUS-COMPATIBLE
DAC
SILICON MONOLITHIC
INTEGRATED CIRCUIT
-
L SUFFIX
CASE 732-03
I
PIN CONNECTIONS
REFIN MC6890
'--_ _ _---/ Enable
This document contains information on a new product. Specifications and information herein
are subiect to change without notice.
3-695
ORDERING INFORMATION
Temperature Range

MC6890
II
MC6890
MAXIMUM RATINGS
Rating
Power Supply Voltage
Digital Input Voltage, Pins 1-8, 12
Pin 9
Applied Output Voltage
Symbol
VCC
VEE
Vin
V14
Value
+7.0
-18
-3.0 to +7.0
Oto +7.0
VEE +2.0 to
VEE +24
Unit
Vdc
Vdc
Vdc
Reference Amplifier Input
Operating Temperature Range
MC6890L,
MC6890AL
Storage Temperature Range
Junction Temperature
V18 ±7.5 Vdc
TA °c
Oto+70
-55 to +125
Tstg -65 to +150
TJ +150
°c
°C
ELECTRICAL CHARACTERISTICS (VCC= 5.0 V, VEE = -12 V, Pin 18 loadedonlyby Pin 19through 1000. Reset high, TA=T'owto
ThiQh(1)' un Iess 0 th erwl.se noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Digital Input Logic Levels
High Level, Logic 1
Low Level, Logic 0
V,H 2.0
V,L -
-
-
Vdc
-
0.8
Digital Input Current
Data (V,H = 3.0 V)
(V,L = 0.4 V)
Enable(V,H = 3.0 V)
(V,L = 0.4 V)
Reset (V,H ,: VCC)
(V,L = 0.4 V)
Full Scale Output Current - Unipolar
Unipolar Zero Output - All Bits Off (TA = 25°C)
Output Voltage Temperature Coefficient
Unipolar Zero
Bipolar Zero
Full Scale Range
"H
',L
"H
',L
"H
',L
10
-
TCVO
-
-
-
-
-
-
-1.50
-
-
-
-
0.001
0.5
0.001
-6.5
0.001
-1.0
-1.992
0.010
±1.0
±5.0
±20
1.0
-10
1.0
-100
1.0
-15
-2.50
0.20
±2.0
±15
±50
IJ.A
IJ.A
IJ.A
IJ.A
IJ.A
IJ.A
mA
IJ.A
ppm of
FSR/oC
Output Voltage, Full Scale Range (See Figure 3) (TA = 25°C)
(10V Span)
(20V Span)
(5.0 V Span)
Vo Vdc
9.861
9.961
10.061
19.722
19.922
20.122
4.930
4.980
5.030
Output Voltage, Bipolar Zero (MSB on) (See Figure 4) (TA = 25°C)
(10 V Span)
(20 V Span)
(5.0 V Span)
Vo
-
-
-
mV
0 ±20
0 ±40
0 ±10
DAC Output Resistance - Exclusive of Span Resistors
(TA = 25°C) (See Figure 5)
RO 1.0 5.0 -
MO
Resolution
Nonlinearity - Relative Accuracy
(See Terminology)
- 8.0 8.0 8.0 Bits
NL -
-
±0.19
%
(±112 LSB)
Differential Nonlinearity
Monotonicity Guaranteed
Differential Nonlinearity (TA = 25°C)
(See Terminology)
-
-
-
±0.29
%
(±3/4 LSB)
Reference Input Resistor
Reference Output Voltage (TA = 25°C)
Reference Output Impedance (TA = 25°C) "oad = 0-3.0 mA
RREF
VREF
-
3800
2.470
-
4900
2.500
0.3
6800
2.530
1.0
0
Vdc
0
Reference Short Circuit Current (TA = 25°C)
Reference Output Voltage Temperature Coefficient
Power Supply Range
Power Supply Current -
(VCC= 5.0 V)
(VEE = -5.0 V)
(VEE = -15 V)
All Bits Low
Power Supply Rejection (TA = 25°C)
To VCC (VCC = 4.5 to 5.5 V)
To VEE (VEE = -4.5 V to -16.5 V)
'REF
TCVO(REF)
VCC
VEE
ICC
lEE
lEE
PSR
15
-
4.5
-16.5
-
-
-
-
-
30
±20
5.0
-12
10
-10
-10
0.010
0.10
50
-
5.5
-4.5
20
-15
-15
±1/10
±112
mA
ppm/DC
Vdc
mA
LSB
Power Dissipation - All Bits Low
For VCC = 4.5 V, VEE = -4.5 V
For VCC = 5.5 V, VEE = -16.5 V
Po
-
-
mW
90 158
220 358
NOTE 1: Tlow = -55°C for MC6890A. 0° for MC6890
Thigh = +125°C for MC6890A. +700 C for MC6890
3-696


Features ® MOTOROLA Advance InforIDation MPU-BU S-COMPATIBlE 8-BIT 0-TO-A CONVERTER The MC6890 is a self-contained, bus-compat ible, 8 bit (±0.19% accuracy) D-to-A c onverter system capable of interfacing directly with 8-bit microprocessors. Av ailable in both commercial and military temperature ranges, this monolithic co nverter contains master/slave registers to prevent transparency to data transi tions during active enable; a lasertrim med, low-TC, 2.5 V precision bandgap re ference; and high stability, laser-trim med, thin-film resistors for both refer ence input and output span and bipolar offset control. A reset pin provides fo r overriding stored data and forcing lo ut to zero. • Direct Data Bus Link wi th All Popular TIL Level MPU's • ±1 /2 LSB Nonlinearity Over Temperature Fast Settling Time: 200 ns Typ • In ternal 2.5-V Precision Laser-Trimmed Vo ltage Reference (May Also Be Used Exter nally) • Minimum Enable Pulse Width: 70 ns • Fast Enable: 10 ns Maximum Data Hold Time • Reset Pin to Override Da.
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