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MC3410 Schematic ( PDF Datasheet ) - Philips

Teilenummer MC3410
Beschreibung 10-Bit high-speed multiplying D/A converter
Hersteller Philips
Logo Philips Logo 




Gesamt 8 Seiten
MC3410 Datasheet, Funktion
Philips Semiconductors Linear Products
10-Bit high-speed multiplying D/A converter
Product specification
MC3410,
MC3410C
DESCRIPTION
The MC3410 series are 10-bit Multiplying Digital-to-Analog
Converters. They are capable of high-speed performance, and are
used as general-purpose building blocks in cost-effective D/A
systems.
The Philips Semiconductors design provides complete 10-bit
accuracy without laser trimming, and guaranteed monotonicity over
temperature. Segmented current sources, in conjunction with an
R-2R DAC provides the binary weighted currents. The output buffer
amplifier and voltage reference have been omitted to allow greater
speed, lower cost, and maximum user flexibility.
FEATURES
10-bit resolution and accuracy (±0.05%)
Guaranteed monotonicity over temperature
Fast settling time—250ns typical
Digital inputs are TTL and CMOS compatible
Wide output voltage compliance range
High-speed multiplying input slew rate—20mA/µs
Reference amplifier internally-compensated
Standard supply voltages +5V and -15V
APPLICATIONS
Successive approximation A/D converters
High-speed, automatic test equipment
High-speed modems
Waveform generators
CRT displays
Strip CHART and X-Y plotters
Programmable power supplies
Programmable gain and attenuation
ORDERING INFORMATION
DESCRIPTION
16-Pin Ceramic Dual In-Line Package (CERDIP)
16-Pin Ceramic Dual In-Line Package (CERDIP)
PIN CONFIGURATION
F Package
VEE 1
GND 2
OUTPUT 3
D1 MSB 4
D2 5
D3 6
D4 7
D5 8
TOP VIEW
16 VREF +
15 VREF –
14 VCC
13 D10 (LSB)
12 D9
11 D8
10 D7
9 D6
BLOCK DIAGRAM
MSB
LSB
D1 D2 D3 D4 D5 D6 D7 D8 D9 D10
4 5 6 7 8 9 10 11 12 13
I0
3
CURRENT SWITCHES
LADDER TERMINATORS
R–2R LADDER
16
VREF(+)
15
VREF(–)
REFERENCE
CURRENT
AMPLIFIER
1
VEE
BIAS
CIRCUITRY
14
VCC
2
GND
TEMPERATURE RANGE
0 to +70°C
0 to +70°C
ORDER CODE
MC3410F
MC3410CF
DWG #
0582B
0582B
August 31, 1994
743 853-0936 13721






MC3410 Datasheet, Funktion
Philips Semiconductors Linear Products
10-Bit high-speed multiplying D/A converter
Product specification
MC3410,
MC3410C
VR (+)
D1 THROUGH D10
RT
VCC
14
R16
16
3410
R15
15
IO
3
1
VEE
2
NOTES:
R16 + RT = R15 = RREF
RT < <R16
IO F.S. = 2 IR = VREF/RREF
a. Positive Reference Voltage
D1 THROUGH D10
RT
VCC
R16
13
3410
VR (–)
R15
15
IO
12
VEE
a. Negative Reference Voltage
NOTES:
R15 + RT = R16
RT < <R15
IVREF RVEE + 3V
Figure 6. Basic Connections
MONOTONICITY
The MC3410 and MC3410C are guaranteed monotonic over
temperature. This means that for every increase in the input digital
code, the output current either remains the same or increases but
never decreases. In the multiplying mode, where reference input
current will vary, monotonicity can be assured if the reference input
current remains above 0.5mA.
SETTLING TIME
The worst-case switching condition occurs when all bits are
switched “on,” which corresponds to a low-to-high transition for all
bits. This time is typically 250ns for the output to settle to within
±1/2LSB for 10-bit accuracy, and 200ns for 8-bit accuracy. The
turn-off time is typically 120ns. These times apply when the output
swing is limited to a small (<0.7V) swing and the external output
capacitance is under 25pF.
The major carry (MSB off-to-on, all others on-to-off) settles in
approximately the same time as when all bits are switched off-to-on.
If a load resistor of 625is connected to ground, allowing the output
to swing to -2.5V, the settling time increases to 1.5µs.
Extra care must be taken in board layout as this is usually the
dominant factor in satisfactory test results when measuring settling
time. Short leads, 100µF supply bypassing, and minimum scope
lead length are all necessary.
A typical test setup for measuring settling time is shown in Figure 7.
The same setup for the most part can be used to measure the slew
rate of the reference amplifier (Figure 9) by tying all data bits high,
pulsing the voltage reference input between 0 and 2V, and using a
500load resistor RL.
August 31, 1994
748

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