ADS-117 查看數據表（PDF） - Murata Power Solutions
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ADS-117 Datasheet PDF : 6 Pages
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ADS-117
12-Bit, 2MHz, Low-Power Sampling A/D Converters
ABSOLUTE MAXIMUM RATINGS
PARAMETERS
+15V Supply (Pin 22)
–15V Supply (Pin 24)
+5V Supply (Pin 13)
Digital Inputs (Pin 16, 17, 18)
Analog Input (Pin 19)
Lead Temp. (10 seconds)
LIMITS
0 to +16
0 to –16
0 to +6.0
–0.3 to +VDD +0.3
–9 to +15
+300
UNITS
Volts
Volts
Volts
Volts
Volts
°C
FUNCTIONAL SPECIFICATIONS
(TA = +25°C, ±VCC = +15V, +VDD =+5V, 2MHz sampling rate, and a minimum 3 minute
warmup unless otherwise specified.)
ANALOG INPUTS
MIN. TYP.
MAX.
UNITS
Input Voltage Range ➀
Bipolar
Unipolar
Input Impedence
Input Capacitance
—
±5
—
Volts
— 0 to +10 —
Volts
4.5
5
—
kΩ
—
6
15
pF
DIGITAL INPUTS
Logic Levels
Logic "1"
Logic "0"
Logic Loading "1"
Logic Loading "0"
+2.0
—
—
Volts
—
—
+0.8
Volts
—
—
+5
μA
—
—
–600
μA
PERFORMANCE
Resolution
No Missing Codes
(12 Bits; fin = 1MHz)
Integral Non-Linearity
0 to +70°C
–55 to +125°C
Differential Non-Linearity
0 to +70°C
–55 to +125°C / –45 to +85°C
Full Scale Absolute Accuracy
(see Tech Note 1)
0 to +70°C
–55 to +125°C / –45 to +85°C
Unipolar/Bipolar Zero Error
0 to +70°C (see Tech Note 1)
–55 to +125°C / –45 to +85°C
Bipolar Offset Error
0 to +70°C (see Tech Note 1)
–55 to +125°C / –45 to +85°C
Gain Error (see Tech Note 1)
0 to +70°C
–55 to +125°C / –45 to +85°C
Internal Reference Voltage
0 to +70°C
–55 to +125°C / –45 to +85°C
External Current
12 Bits
0 to +70°C
—
±1/2
±3
LSB
—
±1
±4
LSB
—
±1/2 ±0.95
LSB
—
±1
+1.5
LSB
—
—
—
—
—
—
—
—
+9.97
+9.95
—
±0.13 ±0.44
±0.25 ±0.73
±0.07 ±0.38
±0.22 ±0.73
±0.1 ±0.38
±0.53 ±0.73
±0.1 ±0.38
±0.53 ±0.73
+10.0
—
—
+10.03
+10.05
1.5
%FSR
%FSR
%FSR
%FSR
%FSR
%FSR
%
%
Volts
Volts
mA
DYNAMIC PERFORMANCE
Spurious Free Dynamic Range (–0.5dB) ➁
dc to 100kHz
—
–81
—
dB
100kHz to 500kHz
—
–75
–70
dB
500kHz to 1MHz
—
–70
—
dB
Total Harm. Distort. (–0.5dB)
dc to 100kHz
100kHz to 500kHz
500kHz to 1MHz
—
–78
—
dB
—
–73
–68
dB
—
–71
—
dB
➀ See Table 1 also
➁ Same specifications for in-band harmonics.
www.murata-ps.com
DYNAMIC PERF. (cont)
MIN. TYP.
MAX.
UNITS
Input Bandwith (–3dB)
Small Signal (–20dB input)
Large Signal (–0.5dB input)
Feedthrough (1MHz)
8
10
—
MHz
7
9
—
MHz
–72
–74
—
dB
SNR (wo/distortion, –0.5dB)
dc to 100kHz
0 to +70°C
—
72
—
dB
–55 to +125°C / –45 to +85°C
—
72
—
dB
100kHz to 500kHz
0 to +70°C
65
70
—
dB
–55 to +125°C / –45 to +85°C
65
70
—
dB
500kHz to 1MHz
0 to +70°C
—
70
—
dB
–55 to +125°C / –45 to +85°C
—
70
—
dB
SNR (and distort., –0.5dB) ➂
dc to 100kHz
0 to +70°C
—
70
—
dB
–55 to +125°C / –45 to +85°C
—
69
—
dB
100kHz to 500kHz
0 to +70°C
64
70
—
dB
–55 to +125°C / –45 to +85°C
62
69
—
dB
500kHz to 1MHz
0 to +70°C
—
69
—
dB
–55 to +125°C / –45 to +85°C
—
69
—
dB
Two-tone Intermodulation Distortion
(fin = 970kHz, 990kHz,
fs = 2Mhz, –0.5dB)
—
–68
—
dB
Slew Rate
—
±210
—
V/μs
Effect. Aperture Delay Time
—
—
16
ns
Overvoltage Recovery Time; 20% —
—
500
ns
S/H Acq. Time, (to ±0.01%)
0 to +70°C
—
155
165
ns
–55 to +125°C / –45 to +85°C
—
160
170
ns
Conversion Rate
2
—
—
MHz
Output Coding
Pin 18 High
Pin 18 Low
OUTPUTS
Staight binary/Offset binary
Complementary binary
Complementary offset binary
Logic Level
Logic "1"
Logic "0"
Logic Loading "1"
Logic Loading "0"
+2.4
—
—
Volts
—
—
+0.4
Volts
—
—
–160
μA
—
—
+6.4
mA
POWER REQUIREMENTS
Power Supply Ranges ➃
+15V Supply
–15V Supply
+5V Supply
Power Supply Current
+15V Supply
–15V Supply
+5V Supply
Power Dissipation
Power Supply Rejection
+14.25
–14.25
+4.75
—
—
—
—
—
+15.0
–15.0
+5.0
+15.75
–15.75
+5.25
+48
+58
–35
–45
+75
+85
1.6
1.9
— ±0.07
Volts
Volts
Volts
mA
mA
mA
Watts
%FSR%V
➂ Effective bits is equal to:
(SNR + Distortion) – 1.76 + 20 log Full Scale Amplitude
Actual Input Amplitude
6.02
➃ For ±12V, +5V operation, contact Murata Power Solutions.
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDA_ADS-117.B01 Page 2 of 6
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