adc1213s125hn/c1 NXP Semiconductors, adc1213s125hn/c1 Datasheet - Page 16

• 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
If bit INTREF_EN is set to logic 0, the reference voltage is determined either internally or
externally as detailed in
Table 10.
Figure 11
required reference voltage source.
Mode
Internal
Internal
Internal, SPI mode
(Figure
External
Fig 10. Reference equivalent schematic
SENSE
VREF
13)
(Figure
(Figure
(Figure
to
Reference modes
Figure 14
11)
12)
14)
All information provided in this document is subject to legal disclaimers.
BUFFER
SELECTION
SPI bit, “Internal
reference”
0
0
1
0
LOGIC
illustrate how to connect the SENSE and VREF pins to select the
Rev. 1 — 14 March 2011
Table
10.
REFERENCE
AMP
EXT_ref
EXT_ref
Single 12-bit ADC; serial JESD204A interface
SENSE pin
GND
VREF pin = SENSE pin and
330 pF capacitor to GND
VREF pin = SENSE pin and
330 pF capacitor to GND
V
DDA
REFERENCE
BANDGAP
ADC1213S series
VREF pin
330 pF capacitor
to GND
external voltage
from 0.5 V to 1 V
ADC CORE
REFB
REFT
© NXP B.V. 2011. All rights reserved.
Full-scale,
(V (p-p))
2
1
1 to 2
1 to 2
16 of 39