Evm Dip Switch Functionality - Texas Instruments THS7002 User Manual

1.4 EVM DIP Switch Functionality

The THS7002 can be fully evaluated without any external digital control
signals applied. This is accomplished through the use of two banks of DIP
switches. Each DIP switch bank incorporates six SPST switches labeled A
through F. The functionality of each switch is described in Table 1–2.
Table 1–2. EVM DIP Switch Functionality
SWITCH LABEL
S1:A S1:A A–G0 A G0
S1:B S1:B A–G1 A G1
S1:C S1:C A–G2 A G2
S1:D S1:D A S/D A–S/D
S1:E S1:E A VREF A–VREF
S1:F S1:F VL VL
S2:A S2:A B G2 B–G2
S2:B S2:B B–G1 B G1
S2:C S2:C B–G0 B G0
S2:D S2:D B S/D B–S/D
S2:E S2:E B VREF B–VREF
S2:F S2:F VH VH
POSITION
0 PGA – A-Channel Gain Bit 0 (LSB): Value = 0 (Low)
1 PGA – A-Channel Gain Bit 0 (LSB): Value = 1 (High)
0 PGA – A-Channel Gain Bit 1: Value = 0 (Low)
1 PGA – A-Channel Gain Bit 1: Value = 1 (High)
0 PGA – A-Channel Gain Bit 2 (MSB): Value = 0 (Low)
1 PGA– A-Channel Gain Bit 2 (MSB): Value = 1 (High)
0 A-Channel Shutdown: Value = 0 (Low) — A Side Active
1 A-Channel Shutdown: Value = 1 (High) — A Side Shutdown
0 A-Channel VREF Floating (Connect TP8 to Ext. Ref.)
1 A-Channel VREF Connected to Ground
0 Low Side Clamp Ground (Connect TP6 to Ext Ref)
1 Low Side Clamp Connected to –Vcc
0 PGA – B-Channel Gain Bit 2 (MSB): Value = 0 (Low)
1 PGA – B-Channel Gain Bit 2 (MSB): Value = 1 (High)
0 PGA – B-Channel Gain Bit 1: Value = 0 (Low)
1 PGA – B-Channel Gain Bit 1: Value = 1 (High)
0 PGA – B-Channel Gain Bit 0 (LSB): Value = 0 (Low)
1 PGA – B-Channel Gain Bit 0 (LSB): Value = 1 (High)
0 B-Channel Shutdown: Value = 0 (Low) — B Side Active
1 B-Channel Shutdown: Value = 1 (High) — B Side Shutdown
0 B-Channel VREF Floating (Connect TP14 to Ext Ref)
1 B-Channel VREF Connected to Ground
0 High Side Clamp Ground (Connect TP5 to Ext Ref)
1 High Side Clamp Connected to JP5 (Vcc or 5 V)

EVM DIP Switch Functionality

DESCRIPTION
General Information
1-9