SE5410F 데이터 시트보기 (PDF) - Philips Electronics
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SE5410F Datasheet PDF : 9 Pages
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Philips Semiconductors Linear Products
10-Bit high-speed multiplying D/A converter
Product specification
NE/SE5410
DC ELECTRICAL CHARACTERISTICS
VCC=+5.0VDC, VEE=-15VDC, IREF=2.0mA, all digital inputs at high logic level. SE5410: TA=-55°C to +125°C, NE5410 Series: TA=0°C to +70°C,
unless otherwise noted.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
Min
Typ
Max
UNIT
CI
Digital input capacitance (all bits high)
ICC
IEE
Power supply current (all bits low)
VCC
VEE
Power supply voltage range
Power consumption
TA = 25°C
VO = 0
4.0
pF
+2
+4
–12
–18
mA
+4.75 +5.0 +5.25
–14.25 –15 –15.75
VDC
190
300
mW
4.0
3.0
+VCC = +5V
2.0
–VEE = –15V
TA = 25°C
1.0
IREF = 2mA
0
–1.0
–5
–3 –1 0 1
3
5
COMPLIANCE VOLTAGE (VOLT)
Figure 1. Output Current vs Output Compliance Voltage
4.0
3.0
2.0
1.0
+VCC = +5V
–VEE = –15V
0
IREF = 2mA
–1.0
–2.0
–3.0
–4.0
–75 –50 –25 0 25 50 75 100 125
TA (°C)
Figure 2. Maximum Output Compliance Voltage
vs Temperature
CIRCUIT DESCRIPTION
The NE5410 consists of four segment current sources which
generate the 2 Most Significant Bits (MSBs), and an R/2R DAC
implemented with ion-implanted resistors for scaling the remaining 8
Least Significant Bits (LSBs) (see Figure 5). This approach provides
complete 10-bit accuracy without trimming.
The individual bit currents are switched ON or OFF by
fully-differential current switches. The switches use current steering
for speed.
13
12
IEE
11
10
+VCC = +5V
–VEE = –15V
4
IREF = 2mA
3
2
+ICC
1
0
–75
–50 –25
0 25 50
TA (°C)
75 100 125
Figure 3. Power Supply Currents vs Temperature
Figure 4. Reference Amplifier Frequency Response
An on-chip high slew reference current amplifier drives the R/2R
ladder and segment decoder. The currents are scaled in such a way
that, with all bits on, the maximum output current is two times
1023/1024 of the reference amplifier current, or nominally 3.996mA
for a 2.000mA reference input current. The reference amplifier
allows the user to provide a voltage input: out-board resistor R16
(see Figure 6) converts this voltage to a usable current. A current
mirror doubles this reference current and feeds it to the segment
decoder and resistor ladder. Thus, for a reference voltage of 2.0V
and a 1kΩ resistor tied to Pin 16, the full-scale current is
August 31, 1994
769
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