ADS-119MM Murata Power Solutions Inc, ADS-119MM Datasheet - Page 3

• Manufacturer Part Number: ADS-119MM
• Description: Analog To Digital Converter
• Manufacturer: Murata Power Solutions Inc

DATEL
➀ All power supplies must be on before applying a start convert pulse. All supplies
and the clock (START CONVERT) must be present during warmup periods. The
device must be continuously converting during this time. There is slight
degradation in performance when using ±12V supplies.
➁ See ordering information for availability of ±5V input range. Contact DATEL for
availability of other input voltage ranges.
➂ A 200ns wide start convert pulse is used for all production testing. Only the rising
edge of the start convert pulse is required for the device to operate
(edge-triggered).
DYNAMIC PERFORMANCE (Cont.)
S/H Acquisition Time
Overvoltage Recovery Time ➄
A/D Conversion Rate
DIGITAL OUTPUTS
Logic Levels
Output Coding
POWER REQUIREMENTS
Power Supply Ranges ➅
Power Supply Currents
Power Dissipation
Power Supply Rejection
Footnotes:
1. Obtaining fully specifi ed performance from the ADS-119 requires careful
2. The ADS-119 achieves its specifi ed accuracies without the need for
TECHNICAL NOTES
Logic "1"
Logic "0"
Logic Loading "1"
Logic Loading "0"
+5V Supply
–5V Supply
+5V Supply
–5V Supply
( to ±0.001%FSR, 10V step)
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.
external calibration. If required, the device's small initial offset and gain
®
+4.75
–4.75
+2.4
MIN.
—
—
—
—
—
—
—
—
30
10
®
• 11 Cabot Boulevard, Mansfi eld, MA 02048-1151 USA • Tel: [phone] • www.datel.com • e-mail: [e-mail]
+25°C
+200
–180
+5.0
–5.0
100
TYP.
1.8
35
—
—
—
—
—
—
+5.25
±0.01
–5.25
+215
–205
+0.4
MAX.
2.1
+4
37
—
—
—
–4
+4.75
–4.75
+2.4
500
MIN.
30
—
—
—
—
—
—
—
—
3. Applying a start convert pulse while a conversion is in progress (EOC =
4. Data is valid only for the time period (55ns, typical) shown in Figure 2
12-Bit, 10MHz, Low-Power Sampling A/D Converters
➃ Effective bits is equal to:
➄ This is the time required before the A/D output data is valid after the analog input
is back within the specifi ed range.
(SNR + Distortion) – 1.76 + 20 log
Offset Binary
errors can be reduced to zero using the adjustment circuitry shown in
Figures 3 and 4. For operation without adjustment, tie pin 17 to analog
ground. When using this circuitry, or any similar offset and gaincalibra-
tion hardware, make adjustments following warmup. To avoid interaction,
always adjust offset before gain.
logic "1") will initiate a new and inaccurate conversion cycle.
even if the device is sampling at less than 10MHz.
0 to +70°C
+200
–180
+5.0
–5.0
100
TYP.
1.8
35
—
—
—
—
—
—
+5.25
–5.25
+215
–205
+0.4
±0.1
MAX.
2.1
37
—
—
—
–4
+4
6.02
+2.4
+4.9
–4.9
500
MIN.
30
—
—
—
—
—
—
—
—
31 Mar 2011 MDA_ADS-119.B02 Page 3 of 9
–55 to +125°C
Actual Input Amplitude
Full Scale Amplitude
+205
–180
+5.0
–5.0
100
TYP.
1.8
35
—
—
—
—
—
—
+5.25
±0.01
–5.25
+215
–205
+0.4
MAX.
2.1
+4
37
—
—
—
–4
ADS-119
%FSR/%V
UNITS
Watts
Volts
Volts
Volts
Volts
MHz
mA
mA
mA
mA
ns
ns