DAC161S997_15 Datasheet, PDF (6/39 Pages) Texas Instruments – DAC161S997 16-Bit SPI-Programmable DAC for 4-20 mA Loops

DAC161S997
SNAS621A – JUNE 2013 – REVISED DECEMBER 2014
www.ti.com
Electrical Characteristics (continued)
Unless otherwise noted, these specifications apply for VA = VD = 3.3 V, COMA = COMD = 0 V, T_A= 25°C, external bipolar
transistor: 2N3904, RE = 22 Ω, C1 = C2 = C3 = 2.2 nF.
PARAMETER
TEST CONDITIONS
MIN ⁽¹⁾
TYP
MAX⁽¹⁾ UNIT
DIGITAL OUTPUT CHARACTERISTICS
V_OL
V_OH
I_OZH, I_OZL
C_OUT
Output Low voltage
Output HIGH voltage
TRI-STATE leakage current
TRI-STATE output capacitance
I_sink = 200 μA
I_sink = 200 μA
0.4
V
2.6
V
–10
10
µA
5
pF
7.6 Timing Requirements
f_CLK
t_H
t_L
t_CSB
t_CSS
t_SCH
t_CSH
t_ZSDO
t_SDOZ
t_DS
t_DH
t_DO
SCLK frequency
SCLK high time
SCLK low time
CSB pulse width
CSB set-up time prior to SCLK rising edge
24th rising edge of SCLK to CSB rising edge
CSB hold time after the 24th falling edge of SCLK
CSB falling edge to SDO valid
CSB rising edge to SDO HiZ
SDI data set-up time prior to SCLK rising edge
SDI data hold time after SCLK rising edge
SDO output data valid
MIN
0
0.4 / F_CLK
0.4 / F_CLK
5
5
15
6
10
6
NOM
50
50
40
10
10
10
10
MAX
10
35
30
UNIT
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Figure 1. SPI Timing Diagrams
6
Submit Documentation Feedback
Copyright © 2013–2014, Texas Instruments Incorporated
Product Folder Links: DAC161S997