SPT SPT5310SIN, SPT5310SIP Datasheet
SPT5310
12-BIT, 250 MWPS ECL D/A CONVERTER
FEATURES
• 12-Bit, 250 MWPS Digital-to-Analog Converter
• ECL Compatibility
• Low Glitch Energy: 15 pV-s
• Low Power: 600 mW
• 40 MHz Multiplying Bandwidth
• Master-Slave Latches
• Industrial Temperature Range
GENERAL DESCRIPTION
The SPT5310 is a 12-bit, 250 MWPS digital-to-analog converter designed for direct digital synthesis, high resolution
imaging and arbitrary waveform generation applications. The
SPT5310 is an ECL-compatible device. It features a low glitch
BLOCK DIAGRAM
APPLICATIONS
• Fast Frequency Hopping Spread Spectrum Radios
• Direct Sequence Spread Spectrum Radios
• Microwave and Satellite Modems
• Test & Measurement Instrumentation
• Military Applications
impulse energy of 15 pV-s that results in excellent spurious
free dynamic range characteristics.
The SPT5310 is available in 28-lead plastic DIPs and 28-lead
PLCCs in the industrial temperature range (-40 to +85 °C).
R
Set
Control Amp In
Ref Out
Latch Enable
Digital
Inputs
D1
through
D12
+
Control
Amp
-
(MSB)
Decoders
and
Drivers
(LSB)
Internal
Voltage
Reference
Network
Latches
Switch
Control
Amp Out
Ref In
I
Out
I
Out
Signal Processing Technologies, Inc.
4755 Forge Road, Colorado Springs, Colorado 80907, USA
Phone: (719) 528-2300 FAX: (719) 528-2370
ABSOLUTE MAXIMUM RATING (Beyond which damage may occur)
1
Supply Voltages
Negative Supply Voltage (VEE)................................ -7 V
A/D Ground Voltage Differential..............................0.5 V
Input Voltages
Digital Input Voltage (D1-D12, Latch Enable) .................
....................................................................... 0 V to V
Control Amp Input Voltage Range ................. 0 V to -4 V
Reference Input Voltage Range (V
)..... -3.7 V to V
REF
Output Currents
Temperature
Operating Temperature .............................-40 to + 85 °C
EE
Junction Temperature ........................................ + 150 °C
Lead, Soldering (10 seconds)............................ + 300 °C
EE
Storage ....................................................-65 to + 150 °C
Internal Reference Output Current.......................500 µA
Control Amplifier Output Current........................ ±2.5 mA
Note: 1. Operation at any Absolute Maximum Ratings is not implied. See Electrical Specifications for proper nominal applied
conditions in typical applications.
ELECTRICAL SPECIFICATIONS
TA = T
PARAMETERS CONDITIONS LEVEL MIN TYP MAX UNITS
DC Performance
- T
, V
1
= -5.2 V, R
EE
min
max
Resolution 12 Bits
Differential Linearity I ±1.0 ±1.25 LSB
Differential Linearity Max at Full Temp. VI ±2.0 LSB
Integral Linearity Best Fit I ±1.0 ±1.5 LSB
Integral Linearity Max at Full Temp. VI ±2.0 LSB
Output Capacitance +25 °C10pF
Gain Error
Gain Error Tempco Full Temp. V 150 PPM/°C
Zero-Scale Offset Error +25 °C I 0.5 2.5 µA
Offset Drift Coefficient Full Temp. V 0.01 µA/°C
Output Compliance Voltage +25 °C IV -1.2 +2.0 V
Equivalent Output Resistance +25 °C IV 0.8 1.0 1.2 kΩ
= 7.5 kΩ, Control Amp In = Ref Out, V
SET
TEST TEST SPT5310
+25 °C I 1.0 5.0 % FS
Full Temp. VI 8.0 % FS
Full Temp. VI 5.0 µA
= 0 V, unless otherwise specified.
OUT
Dynamic Performance
Conversion Rate +25 °C IV 250 MWPS
Settling Time t
Output Propagation Delay t
Glitch Energy
Full Scale Output Current
1
Gain is measured as a ratio of the full-scale current to I
2
Measured as voltage at mid-scale transition to ±0.024%; RL=50 Ω.
3
Measured from the rising edge of Latch Enable to where the output signal has left a 1 LSB error band.
4
Glitch is measured as the largest single transient.
5
Calculated using
6
SFDR is defined as the difference in signal energy between the fundamental and worst case spurious frequencies in the output
2
ST
4
I
FS
D
5
=128 x
+25 °C V 13 ns
3
+25 °CV 1 ns
+25 °C V 15 pV-s
+25 °C V 20.48 mA
. The ratio is nominally 128.
SET
Control Amp In
R
SET
spectrum window, which is centered at the fundamental frequency and covers the indicated span.
SPT5310
SPT
2 4/1/97
ELECTRICAL SPECIFICATIONS
TA = T
PARAMETERS CONDITIONS LEVEL MIN TYP MAX UNITS
Dyanmic Performance
Power Supply Requirements
Voltage Input and Control
Digital Inputs
- T
, V
min
max
Spurious-Free Dynamic Range
5.055 MHz; 20 MWPS 2 MHz Span V 63 dBc
10.055 MHz; 40 MWPS 2 MHz Span V 58 dBc
20.055 MHz; 80 MWPS 2 MHz Span V 56 dBc
40.055 MHz; 160 MWPS 2 MHz Span V 54 dBc
60.055 MHz; 240 MWPS 2 MHz Span V 46 dBc
Rise Time / Fall Time RL = 50 Ω V2ns
Negative Supply Voltage IV -5.46 -5.2 -4.94 V
Negative Supply Current (-5.2 V) +25 °C I 115 140 mA
Nominal Power Dissipation V 600 mW
Power Supply Rejection Ratio ±5% of V
Reference Input Impedance +25 °CV 3kΩ
Ref. Multiplying Bandwidth +25 °C V 40 MHz
Internal Reference Voltage VI -1.15 -1.20 -1.25 V
Internal Reference Voltage Drift V 50 ppm/°C
Amplifier Input Impedance +25 °CV 3MΩ
Amplifier Input Bandwidth +25 °C V 1 MHz
Logic 1 Voltage Full Temp. VI -1.0 -0.8 V
Logic 0 Voltage Full Temp. VI -1.7 -1.5 V
Logic 1 Current Full Temp. VI 20 µA
Logic 0 Current Full Temp. VI 10 µA
Input Capacitance +25 °CV 3pF
Input Setup Time - t
Input Setup Time - t
Input Hold Time - t
Input Hold Time - t
Latch Pulse Width - t
= -5.2 V, R
EE
H
H
S
S
PWL, tPWH
= 7.5 kΩ, Control Amp In = Ref Out, V
SET
TEST TEST SPT5310
6
+25 °C
Full Temp VI 148 mA
EE
External Ref, +25 °C
+25 °CIV32ns
Full Temp. IV 3.5 ns
+25 °C IV 0.5 0 ns
Full Temp. IV 0.5 ns
+25 °C IV 4.0 3.3 ns
= 0 V, unless otherwise specified.
OUT
I 30 100 µA/V
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.
SPT
TEST LEVEL
I
II
III
IV
V
VI
3 4/1/97
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.
SPT5310
Loading...