ADS-118, ADS-118A

ADS-118, ADS-118A
12-Bit, 5MHz, Low-Power Sampling A/D Converters
PRODUCT OVERVIEW
DATEL's ADS-118 and ADS-118A are 12-bit,
5MHz, sampling A/D converters packaged in
space-saving 24-pin DDIP’s. The ADS-118 offers
an input range of ±1V and has three-state outputs.
The ADS-118A has an input range of ±1.25V and
features direct adjustment of offset error.
These functionally complete low-power devices
(1.8 Watts) contain an internal fast-settling sample/
hold amplifier, a 12-bit subranging A/D converter,
a precise voltage reference, timing/control logic,
FEATURES
12-bit resolution
5MHz minimum sampling rate
Functionally complete
Small 24-pin DDIP
Requires only ±5V supplies
and error-correction circuitry. All timing and control
logic operates from the rising edge of a single start
convert pulse. Digital input and output levels are
TTL. Models are available for use in either commercial (0 to +70°C) or military (–55 to +125°C)
operating temperature ranges.
Applications include radar, transient signal
analysis, process control, medical/graphic imaging,
and FFT spectrum analysis.
INPUT/OUTPUT CONNECTIONS
PIN FUNCTION
PIN
FUNCTION
1
BIT 12 (LSB)
24
NO CONNECTION
2
BIT 11
23
ANALOG GROUND
3
BIT 10
22
NO CONNECTION
4
BIT 9
21
+5V ANALOG SUPPLY
5
BIT 8
20
–5V SUPPLY
Low-power, 1.8 Watts
Outstanding dynamic performance
6
BIT 7
19
ANALOG INPUT
No missing codes over full military temperature
range
7
BIT 6
18
ANALOG GROUND
8
BIT 5
17*
ENABLE/OFFSET ADJ.
9
BIT 4
16
START CONVERT
10
BIT 3
15
EOC
11
BIT 2
14
DIGITAL GROUND
12
BIT 1 (MSB)
13
+5V DIGITAL SUPPLY
Edge-triggered, no pipeline delay
Ideal for both time and frequency-domain
applications
* ADS-118, Pin 17 is ENABLE
ADS-118A, Pin 17 is OFFSET ADJUST
BLOCK DIAGRAM
OFFSET ADJUST 17
(ADS-118A only)
17 ENABLE
(ADS-118A only)
BUFFER
12 BIT 1 (MSB)
11 BIT 2
REF
DAC
S
AMP
START CONVERT 16
FLASH
ADC
2
10 BIT 3
3-STATE OUTPUT REGISTER
FLASH
ADC
1
+
DIGITAL CORRECTION LOGIC
S/H
REGISTER
–
ANALOG INPUT 19
REGISTER
9
BIT 4
8
BIT 5
7
BIT 6
6
BIT 7
5
BIT 9
4
BIT 9
3
BIT 10
2
BIT 11
1
BIT 12 (LSB)
TIMING AND
CONTROL LOGIC
EOC 15
21
13
14
20
18, 23
22, 24
+5V ANALOG
SUPPLY
+5V DIGITAL
SUPPLY
DIGITAL
GROUND
–5V SUPPLY
ANALOG
GROUND
NO CONNECT
Figure 1. ADS-118/118A Functional Block Diagram
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
26 Jun 2015 ADS-118.B05 Page 1 of 9
ADS-118, ADS-118A
12-Bit, 5MHz, Low-Power Sampling A/D Converters
ABSOLUTE MAXIMUM RATINGS
LIMITS
0 to +6
0 to –6
–0.3 to +VDD +0.3
±5
+300
PARAMETERS
+5V Supply (Pins 13, 21)
–5V Supply (Pin 20)
Digital Input (Pin 16, 17)
Analog Input (Pin 19)
Lead Temperature (10 seconds)
PHYSICAL/ENVIRONMENTAL
MIN.
TYP.
MAX.
UNITS
0
–55
+70
+125
°C
°C
PARAMETERS
Operating Temp. Range, Case
ADS-118/118AMC
ADS-118/118AMM, GM, 883
Thermal Impedance
θjc
θca
Storage Temperature Range
Package Type
Weight
UNITS
Volts
Volts
Volts
Volts
°C
—
—
—
2
—
°C/Watt
—
23
—
°C/Watt
–65
—
+150
°C
24-pin, metal-sealed, ceramic DDIP or SMT
0.42 ounces (12 grams)
FUNCTIONAL SPECIFICATIONS
(TA = +25°C, ±VDD = ±5V, 5MHz sampling rate, and a minimum 3 minute warmup ➀ unless otherwise specified.)
+25°C
0 TO +70°C
ANALOG INPUT
MIN.
TYP.
MAX.
MIN.
TYP.
Input Voltage Range, ADS-118 ➁
—
±1
—
—
±1
Input Resistance
475
500
—
475
500
Input Capacitance
—
6
15
—
6
MAX.
—
—
15
MIN.
—
475
—
–55 TO +125°C
TYP.
±1
500
6
MAX.
—
—
15
UNITS
Volts
Ω
pF
DIGITAL INPUT
Logic Levels
Logic "1"
Logic "0"
Logic Loading "1"
Logic Loading "0"
Start Convert Positive Pulse Width ➂
+2.0
—
—
—
50
—
—
—
—
100
—
+0.8
+20
–20
—
+2.0
—
—
—
50
—
—
—
—
100
—
+0.8
+20
–20
—
+2.0
—
—
—
50
—
—
—
—
100
—
+0.8
+20
–20
—
Volts
Volts
μA
μA
ns
STATIC PERFORMANCE
Resolution
Integral Nonlinearity (fin = 10kHz)
Differential Nonlinearity (fin = 10kHz)
Full Scale Absolute Accuracy
Bipolar Zero Error (Tech Note 2)
Bipolar Offset Error (Tech Note 2)
Gain Error (Tech Note 2)
No Missing Codes (fin = 10kHz)
—
—
—
—
—
—
—
12
12
±0.75
±0.5
±0.1
±0.1
±0.1
±0.1
—
—
—
+0.75
±0.5
±0.5
±0.5
±0.5
—
—
—
—
—
—
—
—
12
12
±1.0
±0.5
±0.5
±0.5
±0.5
±0.5
—
—
—
±0.95
±0.75
±0.85
±1.5
±1.0
—
—
—
—
—
—
—
—
12
12
±1.5
±0.75
±0.75
±0.85
±1.5
±1.0
—
—
—
+0.95
±1.5
±2.0
±2.5
±2.5
—
Bits
LSB
LSB
%FSR
%FSR
%FSR
%
Bits
—
—
—
–76
–75
–69
–71
–71
–69
—
—
—
–74
–74
–73
–70
–70
–67
—
—
—
–72
–70
–66
–66
–65
–60
dB
dB
dB
—
—
—
–72
–71
–70
–68
–67
–66
—
—
—
–71
–70
–69
–67
–66
–65
—
—
—
–70
–67
–66
–65
–63
–60
dB
dB
dB
67
66
66
69
69
69
—
—
—
66
65
65
69
68
68
—
—
—
64
63
63
67
66
66
—
—
—
dB
dB
dB
65
65
64
—
68
68
67
195
—
—
—
—
64
64
63
—
67
67
66
195
—
—
—
—
62
61
60
—
66
65
64
195
—
—
—
—
dB
dB
dB
μVrms
—
–74
—
—
–74
—
—
–74
—
dB
—
—
—
—
—
—
20
10
80
±400
+10
3
—
—
—
—
—
—
—
—
—
—
—
—
20
10
80
±400
+10
3
—
—
—
—
—
—
—
—
—
—
—
—
20
10
80
±400
+10
3
—
—
—
—
—
—
MHz
MHz
dB
V/μs
ns
ps rms
DYNAMIC PERFORMANCE
Peak Harmonics (–0.5dB)
dc to 500kHz
500kHz to 1MHz
1MHz to 2.5MHz
Total Harmonic Distortion (–0.5dB)
dc to 500kHz
500kHz to 1MHz
1MHz to 2.5MHz
Signal-to-Noise Ratio
(w/o distortion, –0.5dB)
dc to 500kHz
500kHz to 1MHz
1MHz to 2.5MHz
Signal-to-Noise Ratio ➃
(& distortion, –0.5dB)
dc to 500kHz
500kHz to 1MHz
1MHz to 2.5MHz
Noise
Two-tone Intermodulation
Distortion (fin = 1MHz,
975kHz, fs = 5MHz, –0.5dB)
Input Bandwidth (–3dB)
Small Signal (–20dB input)
Large Signal (–0.5dB input)
Feedthrough Rejection (fin = 2.5MHz)
Slew Rate
Aperture Delay Time
Aperture Uncertainty
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
26 Jun 2015 ADS-118.B05 Page 2 of 9
ADS-118, ADS-118A
12-Bit, 5MHz, Low-Power Sampling A/D Converters
DYNAMIC PERFORMANCE (Cont.)
S/H Acquisition Time
( to ±0.001%FSR, 10V step)
Overvoltage Recovery Time ➄
A/D Conversion Rate
DIGITAL OUTPUTS
Logic Levels
Logic "1"
Logic "0"
Logic Loading "1"
Logic Loading "0"
Delay, Falling Edge of EOC to
Output Data Valid
Delay, Falling Edge of ENABLE to
Output Data Valid
Output Coding
POWER REQUIREMENTS
Power Supply Ranges ➅
+5V Supply
–5V Supply
Power Supply Currents
+5V Supply
–5V Supply
Power Dissipation
Power Supply Rejection
MIN.
+25°C
TYP.
MAX.
MIN.
0 to +70°C
TYP.
MAX.
MIN.
–55 to +125°C
TYP.
MAX.
UNITS
—
—
5
85
200
—
90
—
—
—
—
5
85
200
—
90
—
—
—
—
5
85
200
—
90
—
—
ns
ns
MHz
+2.4
—
—
—
—
—
—
—
—
+0.4
–4
+4
+2.4
—
—
—
—
—
—
—
—
+0.4
–4
+4
+2.4
—
—
—
—
—
—
—
—
+0.4
–4
+4
Volts
Volts
mA
mA
—
—
20
—
—
20
—
—
20
MHz
—
—
10
—
—
Offset Binary
10
—
—
10
MHz
+4.75
–4.75
+5.0
–5.0
+5.25
–5.25
+4.75
–4.75
+5.0
–5.0
+5.25
–5.25
+4.9
–4.9
+5.0
–5.0
+5.25
–5.25
Volts
Volts
—
—
—
—
+205
–180
1.8
—
+220
–205
2.1
±0.1
—
—
—
—
+205
–180
1.8
—
+220
–205
2.1
±0.1
—
—
—
—
+205
–180
1.8
—
+220
–205
2.1
±0.1
mA
mA
Watts
%FSR/%V
➃ Effective bits is equal to:
Footnotes:
➀ All power supplies should be on before applying a start convert pulse. All supplies
and the clock (start convert pulses) must be present during warmup periods. The
device must be continuously converting during this time.
➁ Input voltage ranges for ADS-118A is ±1.25V
➂ A 100ns wide start convert pulse is used for all production testing. For applications
requiring less than an 5MHz sampling rate, wider start convert pulses can be used.
NOTE: The device only requires the rising edge of a start convert pulse to operate.
(SNR + Distortion) – 1.76 + 20 log
Full Scale Amplitude
Actual Input Amplitude
6.02
➄ This is the time required before the A/D output data is valid once the analog input is
back within the specified range.
➅ The minimum supply voltages of +4.9V and –4.9V for ±VDD are required for
–55°C operation only. The minimum limits are +4.75V and –4.75V when operating
at +125°C
TECHNICAL NOTES
1. Obtaining fully specified performance from the ADS-118 requires careful
attention to pc-card layout and power supply decoupling. The device’s
analog and digital ground systems are connected to each other internally.
For optimal performance, tie all ground pins (14, 18, and 23) directly to a
large analog ground plane beneath the package.
Bypass all power supplies to ground with 4.7μF tantalum capacitors in
parallel with 0.1μF ceramic capacitors. Locate the bypass capacitors as
close to the unit as possible.
2. The ADS-118 achieves its specified accuracies without the need for
external calibration. If required, the device’s small initial offset and gain
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
errors can be reduced to zero using the adjustment circuitry shown in
Figures 2a and 2b. For operation without adjustment, tie pin 17 to analog
ground. When using this circuitry, or any similar offset and gain-calibration
hardware, make adjustments following warmup. To avoid interaction,
always adjust offset before gain.
3. To enable the three-state outputs, connect ENABLE (pin 17) to a logic
"0" (low). To disable, connect pin 17 to logic "1" (high). The three-state
outputs are permanently enabled in the ADS-118A.
4. Applying a start convert pulse while a conversion is in progress (EOC =
logic "1") will initiate a new and inaccurate conversion cycle.
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
26 Jun 2015 ADS-118.B05 Page 3 of 9
ADS-118, ADS-118A
12-Bit, 5MHz, Low-Power Sampling A/D Converters
CALIBRATION PROCEDURE
Zero/Offset Adjust Procedure
Any offset and/or gain calibration procedures should not be implemented
until devices are fully warmed up. To avoid interaction, offset must be adjusted before gain. The ranges of adjustment for the circuits in Figures 2a
and 2b are guaranteed to compensate for the ADS-118's initial accuracy
errors and may not be able to compensate for additional system errors.
1. Apply a train of pulses to the START CONVERT input (pin 16) so the converter is continuously converting.
A/D converters are calibrated by positioning their digital outputs exactly on
the transition point between two adjacent digital output codes. This can be
accomplished by connecting
2. Apply +244μV (ADS-118) or +305μV (ADS-118A) to the ANALOG INPUT
(pin 19).
3. Adjust the offset potentiometer until the output bits are 1000 0000 00000
and the LSB flickers between 0 and 1.
LED’s to the digital outputs and adjusting until certain LED's "flicker"
equally between on and off. Other approaches employ digital comparators
or microcontrollers to detect when the outputs change from one code to
the next.
Gain Adjust Procedure
For the ADS-118, offset adjusting is normally accomplished at the point
where the MSB is a 1 and all other output bits are 0’s and the LSB just
changes from a 0 to a 1. This digital output transition ideally occurs when
the applied analog input is
+½LSB (+244μV for ADS-118; +305μV for ADS-118A).
2. Adjust the gain potentiometer until all output bits are 1's and the LSB
flickers between 1 and 0.
1. Apply +0.99927V (ADS-118) or +1.249085V (ADS-118A) to the ANALOG
INPUT (pin 19).
3. To confirm proper operation of the device, vary the input signal to obtain
the output coding listed in Table 1.
Gain adjusting is accomplished when all bits are 1’s and the LSB just
changes from a 1 to a 0. This transition ideally occurs when the analog input is at +full scale minus 1½ LSB's (+0.99927V for ADS-118;
+1.249085V for ADS-118A).
Table 1. Output Coding for Bipolar Operation
BIPOLAR SCALE
ADS-118 INPUT
RANGE (±1V)
OUTPUT CODING
OFFSET
MSB
ADS-118 INPUT
RANGE (±1.25V)
BINARY
LSB
+FS –1 LSB
+0.99951V
1111 1111 1111
+1.2494V
+3/4 FS
+0.75000V
1110 0000 0000
+0.9375V
+1/2 FS
+0.50000V
1100 0000 0000
+0.6250V
0
0.00000V
1000 0000 0000
0.0000V
–1/2 FS
–0.50000V
0100 0000 0000
–0.6250V
–3/4 FS
–0.75000V
0010 0000 0000
–0.9375V
–FS +1 LSB
–0.99951V
0000 0000 0001
–1.2494V
–FS
–1.00000V
0000 0000 0000
–1.2500V
+15V
ZERO/
OFFSET
ADJUST
GAIN
ADJUST
20kΩ
–15V
1.2MΩ
2kΩ
SIGNAL
INPUT
GAIN
ADJUST
50Ω
To Pin19
of ADS-118A
Potentiometer is at 25Ω during the device's factory trim procedure.
+15V
1.98kΩ
SIGNAL
INPUT
+15V (or +5V)
50Ω
To Pin19
of ADS-118
ZERO/
OFFSET
ADJUST
20kΩ
To Pin17
of ADS-118A
–15V
–15V (or –5V)
Figure 2a. Optional ADS-118 External
Gain and Offset Adjust Circuits
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
Figure 2b. Optional ADS-118A
Gain and Offset Adjust Circuits
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
26 Jun 2015 ADS-118.B05 Page 4 of 9
ADS-118, ADS-118A
12-Bit, 5MHz, Low-Power Sampling A/D Converters
14
+
À
4.7µF
+5V
12 BIT 1 (MSB)
11 BIT 2
10 BIT 3
9 BIT 4
8 BIT 5
7 BIT 6
6 BIT 7
5 BIT 8
4 BIT 9
3 BIT 10
2 BIT 11
1 BIT 12 (LSB)
15 EOC
17 ENABLE (1-12)
or OFFSET ADJUST
0.1µF
13, 21
20
–5V
+
4.7µF
0.1µF
ADS-118
ADS-118A
18, 23
ANALOG
INPUT
19
START
CONVERT
16
À A single +5V supply should be used for both the +5V analog and +5V digital.
If separate supplies are used, the difference between the two cannot exceed 100mV.
Figure 3. Typical Connection Diagram
N
START
CONVERT
N+1
100ns typ.
Acquisition Time
10ns typ.
INTERNAL S/H
Hold
85ns typ.
90ns max.
35ns min., 40ns typ., 50ns max.
30ns, ±5ns
EOC
Conversion Time
140ns typ., 150ns max.
20ns typ.
OUTPUT
DATA
DATA N-1 VALID
DATA N VALID
INVALID DATA
130ns min.
150ns typ.
50ns typ.
70ns max.
INVALID DATA
Note: Scale is approximately 10ns per division.
Figure 4. ADS-118/118A Timing Diagram
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
26 Jun 2015 ADS-118.B05 Page 5 of 9
ADS-118, ADS-118A
12-Bit, 5MHz, Low-Power Sampling A/D Converters
THERMAL REQUIREMENTS
Electrically-insulating, thermally-conductive "pads" may be installed
underneath the package. Devices should be soldered to boards rather than
socketed, and of course, minimal air flow over the surface can greatly help
reduce the package temperature.
All DATEL sampling A/D converters are fully characterized and specified
over operating temperature (case) ranges of
0 to +70°C and –55 to +125°C. 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.
In more severe ambient conditions, the package/junction temperature of a
given device can be reduced dramatically (typically 35%) by using one of
DATEL's HS Series heat sinks. See Ordering Information for the assigned
part number. See page 1-183 of the DATEL Data Acquisition Components
Catalog for more information on the HS Series. Request DATEL Application
Note AN8, "Heat Sinks for DIP Data Converters",
or contact DATEL directly, for additional information.
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.
+0.67
0
DNL (LSB's)
–20
–30
–40
–50
Number of Occurences
Amplitude Relative to Full Scale (dB)
–10
–60
–70
–80
–90
–100
0
–0.47
0
Digital Output Code
4096
–110
–120
–130
0
250
kHz
500
kHz
750
kHz
1
MHz
1.25
MHz
1.5
MHz
1.75
MHz
2
MHz
2.25
MHz
2.5
MHz
Frequency
(fs = 5MHz, fin = 2.45MHz, Vin = –0.5dB, 4,096-point FFT)
0
Digital Output Code
Figure 6. ADS-118 Histogram and Differential Nonlinearity
Figure 5. FFT Analysis of ADS-118
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
4096
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
26 Jun 2015 ADS-118.B05 Page 6 of 9
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
P4
3
1
2
2
ANALOG
INPUT
R1
500
3
-15V
R2
20K
1
+15V
5
4
• Tel: (508) 339-3000
•
5
7
9
11
13
15
17
19
21
23
25
8
10
12
14
16
18
20
22
24
26
3
4
6
1
P2
6
SG6
www.datel.com
•
C4
2.2MF
20MHY
L4
20MHY
C5
2.2MF
20MHY
C6
L5 2.2MF
L6
C7
2.2MF
SG3
SG2
SG1
C11
0.01MF
-5VA
C12
0.01MF
-15V
+15V
C13
0.01MF
20MHY
C2
2.2MF
4
3
C9
0.01MF
-5V
C8
0.01MF
+5VF
C10
0.01MF
15
18
2
+5V
-5V
20
17
21
22
24
19
16
14
13
7
14
8
JPR2 1
118
119
+5V
+5V
2
C21
0.1MF
+
X1
U5
74HCT86
U5
U5
74HCT86
7
U5
14
3
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
11
6
8
74HCT86
C15
0.1MF
+5VF
SPARE GATES
13
12
5
4
10
9
2
1
EOC
AGND
AGND
-5V
U1
ADS-118/119
ENABLE
+5VA
NOTES:
1. UNLESS OTHERWISE SPECIFIED
ALL CAPACITORS ARE 50V
C1-C6 ARE 20V
ALL RESISTORS ARE IN OHMS
2. AS AN OPTION, COXIAL CABLE
BETWEEN THESE TWO POINTS.
1
2
3
4
5
6
7
8
9
10
11
12
FOR ADS-118/118A 5MHZ
FOR ADS-119 10MHZ
ANAIN
TRIG
DGND
+5VD
+5VF
START
CONVERT
C22
4.7MF
+5V
3
1
1
P3
23
2
JPR1 118A
119A
118A
119A
JPR6
50
118
119
20MHY
C1
2.2MF
L2
JPR3
2
R7
20MHY
C3
2.2MF
L1
L3
-5VA
3
1
+5VA
R3
20K
3
2
JPR5
1
+5VA
C14
.01MF
0.1MF
OPTION
118A
119
OFFSET
C19
SEE NOTE 2
L7, 20MHY
-5VA
10
C18
.1MF
OPTION
+5VA
R4
2K
SG8
11
-15V
SG7
U4
C20
SG4
OPTIONAL
+15V
SG5
SEE NOTE 2
2
GAIN
SG9
R5
1.98K
R6
1.2M
11
9
LE
8D
10
OE
OE
8Q
7Q
6Q
5Q
4Q
3Q
2Q
1Q
+
1
1
12
13
14
15
16
17
18
19
C16
2.2MF
10
74HCT573
20
2
1D
3
2D
4
3D
5
4D
6
5D U2
7
6D
8
7D
+5VF
LE
12
13
2
1
3
JPR4
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
15
14
B1
16
17
18
19
P1
2
4
6 (LSB)
8
10
12
14
16
18
20
22
24
26
28 (MSB)
30
32
34
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
Figure 7. ADS-118/118A Evaluation Board Schematic (ADS-B118)
+5VF
+5VF
11
8Q
7Q
6Q
5Q
4Q
3Q
2Q
1Q
+
C17
2.2MF
74HCT573
20
2
1D
3
2D
4
3D
5
4D
6
5D U3
7
6D
8
7D
9
8D
+5VF
ADS-118, ADS-118A
12-Bit, 5MHz, Low-Power Sampling A/D Converters
e-mail: help@datel.com
26 Jun 2015 ADS-118.B05 Page 7 of 9
ADS-118, ADS-118A
12-Bit, 5MHz, Low-Power Sampling A/D Converters
MECHANICAL DIMENSIONS INCHES (mm)
1.31 MAX.
(33.27)
24-Pin DDIP
Versions
24
ADS-118MC
ADS-118MM
ADS-118AMC
ADS-118AMM
Dimension Tolerances (unless otherwise indicated):
2 place decimal (.XX) ±0.010 (±0.254)
3 place decimal (.XXX) ±0.005 (±0.127)
13
Lead Material: Kovar alloy
0.80 MAX.
(20.32)
1
Lead Finish: 50 microinches (minimum) gold plating
over 100 microinches (nominal) nickel plating
12
0.100 TYP.
(2.540)
1.100
(27.940)
0.235 MAX.
(5.969)
PIN 1 INDEX
0.200 MAX.
(5.080)
0.010
(0.254)
0.190 MAX.
(4.826)
0.100
(2.540)
0.040
(1.016)
0.018 ±0.002
(0.457)
+0.002
–0.001
0.100
(2.540)
0.600 ±0.010
(15.240)
SEATING
PLANE
0.025
(0.635)
1.31 MAX.
(33.02)
24-Pin
Surface Mount
Versions
Dimension Tolerances (unless otherwise indicated):
2 place decimal (.XX) ±0.010 (±0.254)
3 place decimal (.XXX) ±0.005 (±0.127)
13
24
0.80 MAX.
(20.32)
Contact Factory
1
0.190 MAX.
(4.826)
Lead Material: Kovar alloy
Lead Finish: 50 microinches (minimum) gold plating
over 100 microinches (nominal) nickel plating
12
0.020 TYP.
(0.508)
0.060 TYP.
(1.524)
PIN 1
INDEX
0.100
(2.540)
0.100 TYP.
(2.540)
0.015
(0.381)
MAX. radius
for any pin
0.130 TYP.
(3.302)
0.020
(0.508)
0.010 TYP.
(0.254)
0.040
(1.016)
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
• Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
26 Jun 2015 ADS-118.B05 Page 8 of 9
ADS-118, ADS-118A
12-Bit, 5MHz, Low-Power Sampling A/D Converters
ORDERING GUIDE
MODEL NUMBER
ADS-118MC
ADS-118MC-C
ADS-118ME
ADS-118ME-C
ADS-118MM
ADS-118MM-C
ADS-118/883
ADS-118-C/883
ADS-118AMC
ADS-118AMC-C
ADS-118AME
ADS-118AME-C
ADS-118AMM
ADS-118AMM-C
ADS-118AMM/883
ADS-118AMM-C/883
DATEL is a registered trademark of DATEL, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
OPERATING
TEMPERATURE RANGE
Input Range ±1V
0 to +70°C
0 to +70°C
–40to +100°C
–40to +100°C
–55to +125°C
–55to +125°C
–55to +125°C
–55to +125°C
Input Range ±1.25V
0 to +70°C
0 to +70°C
–40to +100°C
–40to +100°C
–55to +125°C
–55to +125°C
–55to +125°C
–55to +125°C
PACKAGE
ROHS
TDIP
TDIP
TDIP
TDIP
TDIP
TDIP
TDIP
TDIP
No
Yes
No
Yes
No
Yes
No
Yes
TDIP
TDIP
TDIP
TDIP
TDIP
TDIP
TDIP
TDIP
No
Yes
No
Yes
No
Yes
No
Yes
DATEL, Inc. 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.
ITAR and ISO 9001/14001 REGISTERED
© 2015 DATEL, Inc.
www.datel.com • e-mail: help@datel.com
26 Jun 2015 ADS-118.B05 Page 9 of 9