MAX1179AEUI-T Maxim Integrated, MAX1179AEUI-T Datasheet - Page 12

• Manufacturer Part Number: MAX1179AEUI-T
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1179AEUI-T

• Number Of Channels: 1
• Architecture: SAR
• Conversion Rate: 135 KSPs
• Resolution: 16 bit
• Input Type: Single-Ended
• Snr: 91 dB
• Interface Type: Parallel
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-28
• Maximum Power Dissipation: 1026 mW
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 1
• Voltage Reference: 4.096 V

onto the analog lines. If the analog and digital sections
share the same supply, isolate the digital and analog
supply by connecting them with a low value (10Ω)
resistor or ferrite bead.
The ADC is sensitive to high-frequency noise on the
AV
capacitor in parallel with a 1µF to 10µF low-ESR capaci-
tor with the smallest capacitor closest to the device.
Keep capacitor leads short to minimize stray inductance.
16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
Figure 11. MAX1179/MAX1187/MAX1189 Fast-Settling Input
Buffer
Figure 12a. MAX1179 Analog Input Current
12
ANALOG
DD
INPUT
______________________________________________________________________________________
supply. Bypass AV
*MAX1187 ONLY.
**MAX1179/MAX1189 ONLY.
-0.5
-1.0
-1.5
-2.0
2.0
1.5
1.0
0.5
0
MAX427
-5.0
SHUTDOWN MODE
vs. ANALOG INPUT VOLTAGE
ANALOG INPUT CURRENT
ANALOG INPUT VOLTAGE (V)
-2.5
MAX1179
DD
AIN
0
MAX1179
MAX1187
MAX1189
to AGND with a 0.1µF
STANDBY MODE
2.5
*
5.0
REF
**
Integral nonlinearity (INL) is the deviation of the values
on an actual transfer function from a straight line. This
straight line can be either a best-straight-line fit or a line
drawn between the end points of the transfer function,
once offset and gain errors have been nullified. The
static linearity parameters for the MAX1179/MAX1187/
MAX1189 are measured using the endpoint method.
Differential nonlinearity (DNL) is the difference between
an actual step-width and the ideal value of 1LSB. A
DNL error specification of 1LSB guarantees no missing
codes and a monotonic transfer function.
For a waveform perfectly reconstructed from digital
samples, signal-to-noise ratio (SNR) is the ratio of the
full-scale analog input (RMS value) to the RMS quanti-
zation error (residual error). The ideal, theoretical mini-
mum analog-to-digital noise is caused by quantization
noise error only and results directly from the ADC’s res-
olution (N bits):
where N = 16 bits.
In reality, there are other noise sources besides quanti-
zation noise: thermal noise, reference noise, clock jitter,
Figure 12b. MAX1189 Analog Input Current
-0.5
-1.0
-1.5
1.5
1.0
0.5
0
SNR = ((6.02
-10
SHUTDOWN MODE
vs. ANALOG INPUT VOLTAGE
ANALOG INPUT CURRENT
ANALOG INPUT VOLTAGE (V)
-5
Differential Nonlinearity
MAX1189
✕
Signal-to-Noise Ratio
Integral Nonlinearity
N) + 1.76)dB
0
STANDBY MODE
5
Definitions
10