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Philips Semiconductors Linear Products
Product specification
8-Bit p-compatible D/A converter
NE/SE5018/5019
DESCRIPTION
The NE/SE5018/19 is a complete 8-bit digital-to-analog converter subsystem on one monolithic chip. The data inputs have input latches which are controlled by a latch enable pin. The data and latch enable inputs are ultra-low loading for easy interfacing with all logic systems. The latches appear transparent when the LE input is in the low state. When LE goes high, the input data present at the moment of transition is latched and retained until LE again goes low. This feature allows easy compatibility with most microprocessors. The chip also comprises a stable voltage reference (5V nominal) and high slew rate buffer amplifier. The voltage reference may be externally trimmed with a potentiometer for easy adjustment of full-scale while maintaining a low temperature coefficient. The output of the buffer amplifier may be offset so as to provide bipolar as well as unipolar operation.
PIN CONFIGURATIONS
F, N Packages
DIGITAL GND 1 DB0(LSB) 2 DB1 3 DB2 4 DB3 5 DB4 6 DB5 7 DB6 8 DB7(MSB) 9 LE 10 NC 11 22 ANALOG GND 21 AMP COMP 20 SUM MODE 19 V CC+ 18 V 17 VCC- 16 DAC COMP 15 BIPOLAR OFFSET R 14 V REFIN 13 V OUT
OUT
REF
12 V REFADJ
D Package1
FEATURES
* 8-bit resolution * Input latches * Low-loading data inputs * On-chip voltage reference * Output buffer amplifier * Accurate to LSB (0.19%) * Monotonic to 8 bits * Amplifier and reference both short-circuit protected * Compatible with 8085, 6800 and many other Ps
APPLICATIONS
DIGITAL GND 1 DB0(LSB) 2 DB1 3 DB2 4 DB3 5 DB4 6 DB5 7 DB6 8 DB7(MSB) 9 NC 10 LE 11 VREFADJ 12 NOTE: 1. SOL and non-standard pinout
24 ANALOG GND 23 AMP COMP 22 SUM MODE 21 V
CC+
20 V OUT 19 NC 18 V CC- 17 DAC COMP 16 BIPOLAR OFFSET 15 NC 14 V REFIN 13 VREFOUT
* Precision 8-bit D/A converters * A/D converters * Programmable power supplies * Test equipment * Measuring instruments * Analog-digital multiplication
ORDERING INFORMATION
DESCRIPTION 22-Pin Ceramic Dual In-Line Package (CERDIP) 22-Pin Ceramic Dual In-Line Package (CERDIP) 22-Pin Plastic Dual In-Line Package (DIP) 22-Pin Plastic Dual In-Line Package (DIP) 24-Pin Small Outline Large (SOL) Package TEMPERATURE RANGE 0 to +70C -55C to +125C 0 to +70C -55C to +125C 0 to +70C ORDER CODE NE5018/5019F SE5018/5019F NE5018/5019N SE5018/5019N NE5018/5019D DWG # 0585B 0585B 0409B 0409B 0173D
August 31, 1994
751
853-0845 13721
Philips Semiconductors Linear Products
Product specification
8-Bit p-compatible D/A converter
NE/SE5018/5019
BLOCK DIAGRAM
(19) VCC+ VREF (13) OUT VREF (12) ADJ 5k 5k 15k (10) LE (1) (9) (8) (7) (6) (5) (4) (3) (2) DIGITAL DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 GND MSB LSB LATCHES AND SWITCH DRIVERS (20) SUM NODE (18) VOUT + - 5k DAC CURRENT OUTPUT + - INT VREF
AMP (21) COMP (22) ANALOG GND
DAC SWITCHES (14) VREF IN 5k (15) BIPOLAR OFFSET 5k
+ - DAC (16) COMP VCC- (17)
ABSOLUTE MAXIMUM RATINGS
SYMBOL VCC+ VCCVIN VREF IN VREF ADJ VSUM IREF SC IOUTSC PD Positive supply voltage Negative supply voltage Logic input voltage Voltage at VREF input Voltage at VREF adjust Voltage at sum node Short-circuit current to ground at VREF OUT Short-circuit current to ground or either supply at VOUT Maximum power dissipation, TA=25C F package N package D package TA Operating temperature range SE5018 NE5018 TSTG TSOLD Storage temperature range Lead soldering temperature (10 seconds) NOTES: 1. Derate above 25C at the following rates: F package at 13.9mW/C N package at 17.5mW/C D package at 12.8mW/C 300 C -55 to +125 0 to +70 -65 to +150 C C C (still-air)1 1740 2190 1600 mW mW mW PARAMETER RATING 18 -18 0 to 18 12 0 to VREF 12 Continuous Continuous UNIT V V V V V V
August 31, 1994
752
Philips Semiconductors Linear Products
Product specification
8-Bit p-compatible D/A converter
NE/SE5018/5019
DC ELECTRICAL CHARACTERISTICS
VCC+=+15V, VCC-=-15V, SE5018. -55CTA125C, NE5018. 0CTA70C, unless otherwise specified. 1 Typical values are specified at 25C. SYMBOL PARAMETER Resolution Monotonicity Relative accuracy VCC+ VCCVIN(1) VIN(0) IIN(1) IIN(0) VFS Positive supply voltage Negative supply voltage Logic "1" input voltage Logic "0" input voltage Logic "1" input current Logic "0" input current Full-scale output Pin 1=0V Pin 1=0V Pin 1=0V, 2V-VFS
Negative full scale
NOTES: 1. Refer to Figure 1.
August 31, 1994
753
Philips Semiconductors Linear Products
Product specification
8-Bit p-compatible D/A converter
NE/SE5018/5019
AC ELECTRICAL CHARACTERISTICS1
VCC = 15V, TA = 25C SYMBOL tSLH tSHL tPLH tPHL tPLSB tPLH tPHL tS tH tPW PARAMETER Settling time Settling time Propagation delay Propagation delay Propagation delay Propagation delay Propagation delay Setup time Hold time Latch enable pulse width TO 1/2LSB 1/2LSB Output Output Output Output Output LE Input FROM Input Input Input Input Input LE LE Input LE TEST CONDITIONS All bits low-to-high2 All bits high-to-low3 All bits switched low-to-high2 All bits switched high-to-low3 1 LSB change2, 3 Low-to-high
1, 6 1, 6 1, 6
NE/SE5018/19 Min Typ 1.8 2.3 300 150 150 300 150 100 50 150 Max
UNIT s s ns ns ns ns ns ns ns ns
transition4
High-to-low transition5
NOTES: 1. Refer to Figure 2. 2. See Figure 5. 3. See Figure 6. 4. See Figure 7. 5. See Figure 8. 6. See Figure 9. 7. For reference currents>3mA, use of an external buffer is required.
LE MSB LSB VCC+ 0.47F LE MSB LSB VCC+ 0.47F
5.000V
98 76 543 2 10 14 VREF IN 13 VREF OUT 12 5018
19 DIG GND 1 ANA GND 22 OUTPUT VOUT 18 SUM 20 15 AMP 21 COMP 1N914 100pF 22pF 2k
98 76 543 2 10 14 13 12 5018
19 DIG GND 1 ANA GND 22 OUTPUT VOUT 18 SUM 20 15 AMP 21 COMP 1N914 100pF 22pF 2k
DAC COMP 16 17
DAC COMP 16 17
0.01F VCC-
0.1F 0.01F VCC-
0.1F
Figure 1. DC Parametric Test Configuration
VCC+
Figure 2. AC Parametric Test Configuration
LSB
LE
MSB
0.47F
98 76 543 2 10 14 VREF IN 10k 10T 80k DAC COMP 16 17 13 VREF OUT 12 VREF ADJ 5018
19 DIG GND 1 ANA GND 22 OUTPUT VOUT 18 SUM 20 15 AMP 21 COMP 1N914 100pF 22pF 2k
FULL SCALE ADJUST
0.01F VCC-
0.1F
VCC+ 1M 20k 10T VCC- ZERO SCALE ADJUST
Figure 3. Full-/Zero-Scale Adjust -- Unipolar Output (0-10V)
August 31, 1994
754
Philips Semiconductors Linear Products
Product specification
8-Bit p-compatible D/A converter
NE/SE5018/5019
LE
MSB
LSB
VCC+ 0.47F
98 76 543 2 10 14 VREF IN 10k 10T 80k DAC COMP BIP OFFSET 16 17 15 13 VREF OUT 12 VREF ADJ 5018
19 DIG GND 1 ANA GND 22 OUTPUT VOUT 18 SUM 20 AMP 21 COMP 1N914 100pF 22pF 2k
0.01F VCC-
0.1F
VCC+ 1M 20k 10T VCC- ZERO SCALE ADJUST
Figure 4. Bipolar Output Operation (-5 to +5V)
DATA DATA
tSLH 10V tPLH OUTPUT 1LSB
10V 0V LE = LOW OUTPUT 0V
DATA
DATA
tSHL 10V tPHL
LE OUTPUT tPHL 0V LE = LOW OUTPUT 0V 1LSB 10V
Figure 6. Settling Time and Propagation Delay, High-to-Low Data
Figure 8. Propagation Delay, Latch Enable to Output
August 31, 1994
755
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Figure 5. Settling Time and Propagation Delay, Low-to-High Data
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LE tPLH
Figure 7. Propagation Delay, Latch Enable to Output
tPHL
Philips Semiconductors Linear Products
Product specification
8-Bit p-compatible D/A converter
NE/SE5018/5019
tPW LE
tS
th
DATA
Figure 9. Latch Pulse Width, Setup and Hold Times
August 31, 1994
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756
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