ADSD-1410S

®
ADSD-1410S
®
Dual 14-Bit, 10MSPS Sampling A/D Converter
FEATURES
PRODUCT OVERVIEW

14-bit resolution; 10MSPS sampling rate
The ADSD-1410S is a functionally complete,
dual 14-bit, 10MSPS, sampling A/D
converter. Its standard, 40-pin, triple-wide
SMT DIP contains two fast-settling sample/
hold amplifiers, two 14-bit A/D converters,
multiplexed output buffers, a precision
reference, and all the timing and control logic
necessary to operate from either two or a
single start convert pulse.

Functionally complete; ±2.5V input range

No missing codes over full temperature range

Edge-triggered

±5V supplies, 1.6 Watts

76dB SNR, –83dB THD

Ideal for both time and frequency domain
applications
The ADSD-1410S is optimized for wideband
frequency-domain applications and is fully FFT
tested. The ADSD-1410S requires only ±5V
supplies and typically consumes 1.6 Watts.
The digital output power supply is capable
of directly driving 5V or 3V logic systems.
Models are available in either commercial 0
to +70°C or military -55 to +125°C operating
temperature ranges.
FUNCTIONAL BLOCK DIAGRAM
Figure 1. ADSD-1410S Functional Block Diagram
DATEL
•
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
•
Tel: (508) 339-3000
•
www.datel.com
14 Jan 2013
•
e-mail: help@datel.com
MDA_ADSD-1410S.B03 Page 1 of 5
®
ADSD-1410S
®
Dual 14-Bit, 10MSPS Sampling A/D Converter
PARAMETERS
+5VCC Supply (Pins 2, 39)
–5VEE Supply (Pins 9, 32)
VDD Supply (Pin 12)
Digital Inputs (Pins 10, 11, 30, 31)
Analog Input (Pins 1, 40)
Lead Temp. (10 seconds)
LIMITS
UNITS
0 to +6
0 to –6
–0.3 to (VCC +0.3)
–0.3 to (VDD +0.3)
±7
+300
Volts
Volts
Volts
Volts
Volts
°C
FUNCTIONAL SPECIFICATIONS
(TA = +25°C, VCC = +5V, VDD = +5V, VEE = –5V, 10MSPS sampling rate,Vin = ±2.5V
and a minimum 7 minute warmup unless otherwise specified.)
ANALOG INPUTS
Input Voltage Range
Input Impedence
Input Capacitance
MIN.
—
610
—
DIGITAL INPUTS
Logic Levels
Logic "1"
Logic "0"
Logic Loading "1"
Logic Loading "0"
PERFORMANCE
Integral Non-Linearity
+25°C (fin=10kHz)
0 to +70°C
–55 to +125°C
Differential Non-Linearity
(fin = 10kHz)
+25°C
0 to +70°C
–55 to +125°C
Offset Error
+25°C (see Figure 3)
0 to +70°C
–55 to +125°C
Gain Error
+25°C (see Figure 3)
0 to +70°C
–55 to +125°C
No Missing Codes
14 Bits
Resolution
OUTPUTS
Output Coding
Logic Level
Logic "1"
Logic "0"
Logic Loading "1"
Logic Loading "0"
Internal Reference
Voltage, +25°C
0 to +70°C
External Current
DATEL
+2.4
—
—
—
TYP.
±2.5V
620
7
—
—
—
—
MAX.
—
630
15
UNITS
Volts
Ω
pF
—
+0.8
+10
–10
Volts
Volts
μA
μA
—
—
—
±1
±1
±2
—
—
—
LSB
LSB
LSB
–0.99
–0.99
–0.99
±0.5
±0.5
±0.75
+1.5
+1.5
+1.75
LSB
LSB
LSB
—
—
—
±0.25
±0.25
±0.5
±0.5
±0.5
±0.8
%FSR
%FSR
%FSR
—
—
—
±0.3
±0.3
±0.6
±0.6
±0.6
±0.8
%FSR
%FSR
%FSR
–55 to +125°C
14 Bits
Offset Bin.
VDD = +5V
VDD = +3.3V
VDD = +5V
VDD = +3.3V
VDD = +5V
VDD = +3.3V
VDD = +5V
VDD = +3.3V
+3.8
+2.48
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
+0.5
+0.5
–8
–4
+8
+4
Volts
Volts
Volts
Volts
mA
mA
mA
mA
+1.5
+1.5
—
+1.6
+1.6
—
+1.7
+1.7
5
Volts
Volts
mA
•
DYNAMIC PERFORMANCE
Total Harm. Distort. (–0.5dB)
dc to 500kHz
500kHz to 5MHz
Signal-to-Noise Ratio
(w/o distortion, –0.5dB
dc to 500kHz
500kHz to 5MHz
Signal-to-Noise Ratio
(and distortion, –0.5dB)
dc to 500kHz
500kHz to 5MHz
Spurious Free Dyn. Range ➀
dc to 500kHz
500kHz to 5MHz
Two-tone IMD
Distortion (fin = 4.85MHz,
fs = 10MHz, –0.5dB)
Input Bandwidth (–3dB)
Small Signal (–20dB input)
Large Signal (–0.5dB input)
Aperture Delay Time
Aperature Uncertainty
S/H Acq. Time, (to ±0.003%FSR)
Step input
Feedthrough Rejection
(fin = 5MHz)
Noise
TIMING SPECIFICATIONS
Conversion Rate
Start Convert High
Start Convert Low
Start Convert to EOC
EOC to Data Valid
Output Disable Delay
POWER REQUIREMENTS
Power Supply Ranges
–5VEE Supply
+5VCC Supply
VDD Supply
Power Supply Currents
–5VEE Supply
+5VCC Supply
VDD Supply
Power Dissipation
Power Supply Rejection
PHYSICAL/ENVIRONMENTAL
Oper. Temp. Range, Ambient
ADSD-1410S
ADSD-1410S-EX
Storage Temperature Range
Package Type
MIN.
TYP.
MAX.
UNITS
—
—
–84
–83
–80
–75
dB
dB
74
74
76
76
—
—
dB
dB
72
72
75
75
—
—
dB
dB
—
—
–87
–86
–82
–78
dB
dB
—
–80
—
dB
—
—
—
—
14
14
—
0.4
—
—
±10
—
MHz
MHz
ns
ps, RMS
—
—
25
ns
—
—
85
250
—
—
dB
μVrms
1
25
25
—
50
50
10
500
500
MHz
ns
ns
1
6
13
ns
–5.25
+4.75
+3.0
–5.0
+5.0
+5.0
–4.75
+5.25
VCC
Volts
Volts
Volts
–100
—
—
—
—
–89
+230
+2.0
1.6
—
—
+245
+5.0
1.7
±0.02
mA
mA
mA
Watts
%FSR%V
0
–55
–65
—
+70
—
+125
—
+150
40-pin, SMT TDIP
°C
°C
°C
Footnote:
➀ Same specification as In-Band Harmonics and Peak Harmonics.
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
•
Tel: (508) 339-3000
•
www.datel.com
14 Jan 2013
•
e-mail: help@datel.com
MDA_ADSD-1410S.B03 Page 2 of 5
®
ADSD-1410S
®
Dual 14-Bit, 10MSPS Sampling A/D Converter
Table 2. Offset Adjustment
TECHNICAL NOTES
1. Rated performance requires using good high-frequency circuit board
layout techniques. Connect the digital and analog grounds to one point,
the analog ground plane beneath the converter. Due to the inductance
and resistance of the power supply return paths, return the analog and
digital ground separately to the power supplies.
INPUT
RANGE
OFFSET ADJUST
+1/2 LSB
±2.5V
+0.000153V
Table 3. Output Coding
OUTPUT CODING
MSB
LSB
11 1111 1111 1111
INPUT RANGE
±2.5V
+2.499695
BIPOLAR
SCALE
+FS – 1LSB
1. Connect the converter per Figure 3. Apply a pulse of 50 nanoseconds
typical to START CONVERT (pin 11) at a rate of 2MHz. This rate is
chosen to reduce flicker if LED's are used on the outputs for calibration
purposes.
11 1000 0000 0000
+1.875000
+3/4FS
11 0000 0000 0000
+1.250000
+1/2FS
10 0000 0000 0000
±0.000000
0
2. Zero (Offset) Adjustments
01 0000 0000 0000
–1.250000
–1/2FS
00 1000 0000 0000
–1.875000
–3/4FS
00 0000 0000 0001
–2.499695
–FS+1LSB
00 0000 0000 0000
–2.500000
–FS
CALIBRATION PROCEDURE
Apply a precision voltage reference source between ANALOG INPUT A
(pin 1) and SIGNAL GROUND (pin 3), then adjust the reference source
output per Table 2. Adjust trimpot R1 until the code flickers equally
between 10 0000 0000 0000 and 10 0000 0000 0001.
3. Repeat above step for Analog Input B (Pin 40). Use trimpot R2 for the
zero (Offset) adjustment .
4. To confirm proper operation of the device, vary the precision reference
voltage source to obtain the output coding listed in Table 3.
Figure 2. ADSD-1410S Timing Diagram
DATEL
•
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
•
Tel: (508) 339-3000
•
www.datel.com
14 Jan 2013
•
e-mail: help@datel.com
MDA_ADSD-1410S.B03 Page 3 of 5
®
ADSD-1410S
®
Dual 14-Bit, 10MSPS Sampling A/D Converter
Notes:
➀ Outputs are enabled by either turning ENABLE A (Pin 10) or
ENABLE B (Pin 31) low for respective analog inputs A or B.
A high on both ENABLE A and ENABLE B results in disabling
the output bus (High Z).
See timing diagram for details.
Figure 3. ADSD-1410S Connection Diagram
THERMAL REQUIREMENTS
The ADSD-1410S sampling A/D converter is fully characterized and
specified over the commercial operating temperature (ambient) range of 0
to +70°C and military temperature range of –55 to +125°C (EX suffix). All
room-temperature (TA = +25°C) production testing is performed without
the use of heat sinks or forced-air cooling. Thermal impedance figures for
each device are listed in their respective specification tables.
DATEL
•
These devices do not normally require heat sinks, however, standard
precautionary design and layout procedures should be used to ensure
devices do not overheat. The ground and power planes beneath the
package, as well as all pcb signal runs to and from the device, should
be as heavy as possible to help conduct heat away from the package.
Electrically-insulating, thermally-conductive "pads" may be installed
underneath the package. Minimal air flow over the surface can greatly help
reduce the package temperature.
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
•
Tel: (508) 339-3000
•
www.datel.com
14 Jan 2013
•
e-mail: help@datel.com
MDA_ADSD-1410S.B03 Page 4 of 5
®
ADSD-1410S
®
Dual 14-Bit, 10MSPS Sampling A/D Converter
MECHANICAL DIMENSIONS INCHES (MM)
Opening In Shell To Prevent
Fluid Entrapment
2.10
0.262
1.09
0.10
ORDERING INFORMATION
MODEL NUMBER
0.015 Thick Copper Leads
Bottom Of Leads To Be
Coplanar to 0.005
0.06
0.025 Typ.
0.100 Typ.
1.900
INPUT/OUTPUT CONNECTIONS
OPERATING TEMP. RANGE
PACKAGE
ROHS
PIN
FUNCTION
PIN
FUNCTION
INPUT A
40
INPUT B
ADSD-1410S
0 to +70°C
SMT-TDIP
No
1
ADSD-1410S-C
0 to +70°C
SMT-TDIP
Yes
2
+5VA
39
+5VA
3
ANALOG GROUND
38
ANALOG GROUND
4
N.C.
37
N.C.
5
OFFSET A
36
OFFSET B
6
RANGE
35
N.C.
7
1.6V REF
34
EOC A
8
ANALOG GROUND
33
ANALOG GROUND
9
–5V
32
–5V
ADSD-1410S-EX
-55to +125°C
SMT-TDIP
No
ADSD-1410S-EX-C
-55to +125°C
SMT-TDIP
Yes
DATEL
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
ITAR and ISO 9001/14001 REGISTERED
10
ENABLE A
31
ENABLE B
11
START A
30
START B
12
VDD
29
EOC B
13
BIT 14 (LSB)
28
BIT 1 (MSB)
14
BIT 13
27
BIT 2
15
BIT 12
26
BIT 3
16
BIT 11
25
BIT 4
17
BIT 10
24
BIT 5
18
BIT 9
23
BIT 6
19
BIT 8
22
BIT 7
20
DGND
21
DGND
. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not
imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change
without notice.
© 2013
www.datel.com • e-mail: help@datel.com
14 Jan 2013
MDA_ADSD-1410S.B03 Page 5 of 5