adc1213s125hn/c1 NXP Semiconductors, adc1213s125hn/c1 Datasheet - Page 15

• Manufacturer Part Number: adc1213s125hn/c1
• Description: Adc1213s Series Single 12-bit Adc; 65 Msps, 80 Msps, 105 Msps Or 125 Msps; Serial Jesd204a Interface
• Manufacturer: NXP Semiconductors

NXP Semiconductors
ADC1213S_SER
Product data sheet
11.2.1 Internal/external reference
11.2 System reference and power management
The configuration shown in
both cases, the choice of transformer is a compromise between cost and performance.
The ADC1213S has a stable and accurate built-in internal reference voltage to adjust the
ADC full-scale. This reference voltage can be set internally via SPI or with pins VREF and
SENSE (see
control bits INTREF[2:0] (when bit INTREF_EN = logic 1; see
reference circuit is shown in
a voltage on pin VREF as described in
Fig 9.
Dual transformer configuration
analog
Figure 11
input
All information provided in this document is subject to legal disclaimers.
100 nF
Rev. 1 — 14 March 2011
to
100 nF
ADT1-1WT
Figure
Figure 9
Figure
14), in 1 dB steps between 0 dB and −6 dB, via SPI
10. An external reference is also possible by providing
is recommended for high frequency applications. In
100 nF
50 Ω
50 Ω
Figure
Single 12-bit ADC; serial JESD204A interface
ADT1-1WT
14.
ADC1213S series
50 Ω
50 Ω
12 Ω
12 Ω
Table
21). The equivalent
100 nF
005aaa045
8.2 pF
© NXP B.V. 2011. All rights reserved.
VCM
INM
INP
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