Datasheet

1
2
7
6
9
AGND2
CAP
REF
AGND1
R1
IN
+5V
Gain
1
2
7
6
9
AGND2
CAP
REF
AGND1
R1
IN
20kW
2.2 Fm
30kW
±10V
(a) ±10VWithHardware Trim (b) ±10VWithoutHardware Trim
175kW
2.2 Fm
2.2 Fm
2.2 Fm
±10V
ADS8519
www.ti.com SLAS462D –JUNE 2007–REVISED SEPTEMBER 2010
Table 4. Output Codes and Ideal Input Voltages
DESCRIPTION ANALOG INPUT RANGE DIGITAL OUTPUT
BINARY TWOS COMPLEMENT STRAIGHT BINARY
Full-scale range ±10V ±5V 0V to 8.192V
(SB/BTC LOW) (SB/BTC HIGH)
Least significant
305mV 153mV 125mV
bit (LSB) BINARY CODE HEX CODE BINARY CODE HEX CODE
+Full-scale
9.999695V 4.999847V 8.191875V 0111 1111 1111 1111 7FFF 1111 1111 1111 1111 FFFF
(FS – 1LSB)
Midscale 0V 0V 4.096V 0000 0000 0000 0000 0000 1000 0000 0000 0000 8000
One LSB below
–305mV 153mV 4.095975V 1111 1111 1111 1111 FFFF 0111 1111 1111 1111 7FFF
midscale
–Full scale –10V –5V 0V 1000 0000 0000 0000 8000 0000 0000 0000 0000 0000
Figure 32. Gain Adjust Trim
Copyright © 2007–2010, Texas Instruments Incorporated Submit Documentation Feedback 21
Product Folder Link(s): ADS8519