SPT SPT5126CCQ, SPT5216BCJ, SPT5216CCJ, SPT5216CCU, SPT5126BCQ Datasheet

SPT5216

16-BIT ULTRAHIGH SPEED DAC

Precision Thin Film

Resistor Network

1 kΩ

Switch

Bias

Network

(+5 V)

DGND

D15

(MSB)

D14

(LSB)

10 V FSR

5 V FSR

VEE (-15 V)

DAC Out

DAC RTN

Sense

DAC RTN

Gain

Adj

Bandgap

REF

AGND

Ref

Gain

Adj

Ref Out

2 kΩ

(+15 V)

BPO

VEE (-15 V)

1 kΩ

BLOCK DIAGRAM

GENERAL DESCRIPTION

The SPT5216 is a monolithic, high-performance, 16-bit digital-to-analog converter with unmatched speed and accuracy. With its 150 nanosecond settling time, it is the highest speed 16-bit DAC in the industry. Unique features include the bandgap voltage reference and precision application resistors which greatly simplify device application. Unlike other high speed DACs, the SPT5216 can be used in either a currentoutput or voltage-output mode.

The internal application resistors support output range selections of 0 to +10, 0 to +5, -5 to +5, and -2.5 to +2.5 volts. These internal resistors, used in conjunction with an external op amp, provide current-to-voltage conversion. Because of the

high compliance voltage of the DAC output (±2.5 volts), the SPT5216 can also provide a direct voltage drive into a high impedance load without an external op amp.

The SPT5216 operates with ±15 volt analog supplies, a separate +5 V digital supply and separate analog and digital grounds to provide maximum noise immunity. All logic input levels are TTL and 5 volt CMOS compatible. Laser-trimmed thin film technology ensures accuracy over time and environmental changes.

The SPT5216 is available in 32-lead sidebrazed DIP and 44lead cerquad packages over the commercial temperature range. It is also available in die form.

APPLICATIONS

• High Speed Analog-to-Digital Converters

• Automatic Test Equipment

• Digital Attenuators

• Digital Communication Equipment

• Waveform Generators

FEATURES

• Fast Settling Time - 150 nsec

• Excellent Linearity T. C. 1.5 ppm/°C

• On-Chip Band-Gap Voltage Reference

• On-Chip Application Resistors for Gain Selection

• TTL Compatible Inputs

Signal Processing Technologies, Inc.

4755 Forge Road, Colorado Springs, Colorado 80907, USA

Phone: (719) 528-2300 FAX: (719) 528-2370

SPT

2 3/4/97

SPT5216

ELECTRICAL SPECIFICATIONS

TA = 0 to +70 °C, VCC = 15 V, VDD = 5 V, VEE = -15 V, unless otherwise specified. Minimum air flow is 50 LFPM.

TEST TEST SPT5216B SPT5216C

PARAMETER CONDITIONS LEVEL MIN TYP MAX MIN TYP MAX UNIT

ACCURACY SPECIFICATIONS

Integral Linearity Error VI ±.0015 ±.003 ±.0045 ±.006 %FSR Integral Linearity Drift Drift V ±2.5 ±4.0 PPM/°C Differential Linearity Error VI ±.003 ±.006 ±.009 ±.012 %FSR Differential Linearity Drift Drift V ±2.5 ±4.0 PPM/°C Gain Error VI ±.03 ±.5 ±.03 ±.5 %FSR Gain Error Drift V ±20 ±20 PPM/°C Unipolar Offset Error VI ±.02 ±.1 ±.02 ±.1 %FSR Bipolar Offset Error VI ±2.5 ±25 ±2.5 ±25 mV

DAC OUTPUT SPECIFICATIONS

OUT

V5 5mA

OUT

V1 1kΩ

OUT

See Figure 1 V 12 12 pF

Output Compliance

V ±2.5 ±2.5 V

Output Noise BW = 1 MHz V 40 40 µV RMS

ABSOLUTE MAXIMUM RATING (Beyond which damage may occur) 25 °C (1)

Supply Voltages

VCC to AGND..........................................................+18 V

VEE to AGND .......................................................... -18 V

VDD to DGND ...........................................................+6 V

AGND to DGND Differential...................................+0.5 V

Input Voltages

All Digital Inputs to DGND ............-0.3 V to (VDD +0.3 V)

REF IN to AGND..............................................0 to +10 V

Temperature

Temperature, Ambient ..................................... 0 to 70 °C

case....................................-60 to +140 °C

junction.........................................+150 °C

Lead Temperature (soldering 10 seconds) .........+300 °C

Storage Temperature................................-65 to +100 °C

Note: 1. Operation at any Absolute Maximum Rating is not implied. See Electrical Specifications for proper nominal

applied conditions in typical applications.

Note 1: Operation at any Absolute Maximum Rating is not implied. See Electrical Specifications for proper nominal

applied conditions in typical applications.

Note 2: Accuracy is not guaranteed beyond this limit.

SPT

3 3/4/97

SPT5216

ELECTRICAL SPECIFICATIONS

TA = 0 to +70 °C, VCC = 15 V, VDD = 5 V, VEE = -15 V, unless otherwise specified. Minimum air flow is 50 LFPM.

TEST TEST SPT5216B SPT5216C

PARAMETER CONDITIONS LEVEL MIN TYP MAX MIN TYP MAX UNIT

DYNAMIC SPECIFICATIONS Settling Time to .0015% V 150 150 ns LOGIC SPECIFICATIONS V

2 VI 4.5 4.5 V VIL 2 VI 0.8 0.8 V I

VI 2 20 2 20 µA

VI 2 20 2 20 µA REFERENCE Reference Output Voltage TA=25 °C I 4.99 5 5.01 4.99 5 5.01 V Reference Output Voltage IV 4.98 5 5.02 4.98 5 5.02 V Max. Reference Output Load3 Total Current V 8 8 mA Output Noise4 BW = 1 MHz V 40 40 µV RMS POWER SUPPLIES VCC Supply IV 14.25 15.00 15.75 14.25 15.00 15.75 V VEE Supply IV -14.25 -15.00 -15.75 -14.25 -15.00 -15.75 V VDD Supply IV 4.75 5.00 5.25 4.75 5.00 5.25 V VCC Supply Current VI 5 8 5 8 mA VEE Supply Current VI 25 35 25 35 mA VDD Supply Current VI 8 12 8 12 mA Power Dissipation VI 490 705 490 705 mW PSRR, V

+15 V±5% V .001 .001 %G/%PS

PSRR, V

-15 V±5% V .01 .01 %G/%PS

PSRR, V

+5 V±5% V .001 .001 %G/%PS

Note 3: Reference Load: REF IN = 1 mA BPO = 2.5 mA Note 4: Reference decoupled as shown in figure 6.

TEST PROCEDURE

100% production tested at the specified temperature. 100% production tested at TA=25 °C, and sample

tested at the specified temperatures. QA sample tested only at the specified temperatures. Parameter is guaranteed (but not tested) by design

and characterization data. Parameter is a typical value for information purposes

only. 100% production tested at TA = 25 °C. Parameter is

guaranteed over specified temperature range.

TEST LEVEL

III

TEST LEVEL CODES

All electrical characteristics are subject to the following conditions:

All parameters having min/max specifications are guaranteed. The Test Level column indicates the specific device testing actually performed during production and Quality Assurance inspection. Any blank section in the data column indicates that the specification is not tested at the specified condition.

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