Datasheet

ADS4126 , ADS4129
ADS4146 , ADS4149
SBAS483G – NOVEMBER 2009–REVISED JANUARY 2011 www.ti.com
ADS412x, ADS414x Pin Assignments (CMOS Mode) (continued)
# OF
PIN NAME PIN NUMBER PINS FUNCTION DESCRIPTION
Data format select input. This pin sets the DATA FORMAT (twos complement or offset
DFS 6 1 I
binary) and the LVDS/CMOS output interface type. See Table 7 for detailed information.
RESERVED 23 1 I Digital control pin, reserved for future use
CLKOUT 5 1 O CMOS output clock
Refer to Figure 3 and
D0 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and
D1 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and
D2 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and
D3 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and
D4 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and
D5 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and
D6 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and
D7 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and
D8 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and 12-bit/14-bit CMOS output data
D9 1 O
Figure 4
Refer to Figure 3 and
D10 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and
D11 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and
D12 1 O 12-bit/14-bit CMOS output data
Figure 4
Refer to Figure 3 and
D13 1 O 12-bit/14-bit CMOS output data
Figure 4
This pin functions as an out-of-range indicator after reset, when register bit
OVR_SDOUT 3 1 O
READOUT = 0, and functions as a serial register readout pin when READOUT = 1.
DRVDD 2, 35 2 I 1.8V digital and output buffer supply
DRGND 1, 36, PAD 2 I Digital and output buffer ground
UNUSED 4 1 — Unused pin in CMOS mode
Refer to Figure 3 and
NC — — Do not connect
Figure 4
14 Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated
Product Folder Link(s): ADS4126 ADS4129 ADS4146 ADS4149