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PGA411-Q1
SLASE76E – NOVEMBER 2015 – REVISED AUGUST 2017
Exciter Output, Amplifier, and Power Supply Characteristics (continued)
V
= 4.75 to 5.25 V, T
= –40°C to +125°C (unless otherwise noted)
CC
A
PARAMETER
EXCITER AMPLIFIER
Exciter-amplifier differential
V
EXCO
output voltage
Exciter-amplifier reference
V
REXC
voltage
Exciter-amplifier quiescent
I
QEXC
current
Exciter amplifier output
I
EXCO
current range
Exciter amplifier output
I
EXCREV
reverse current
6.6 Analog Front-End Characteristics
Over operating free-air temperature range, V
PARAMETER
EXCITER SIGNAL MONITOR (IE1, IE2)
V
Input voltage range
IECM
f
Input frequency range
IEIN
R
Input resistance
EIN
SIN AND COS INPUT GAIN AMPLIFIER (IZ1, IZ3), (IZ2, IZ4), (OSIN, OCOS)
S
(C
)
SIN and COS Amplifier Gain
GAIN
GAIN
IZx input voltage range (pk-
V
IZx
pk)
8
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TEST CONDITIONS
4-V
mode; EXTOUT_GL = 0x00
RMS
4-V
mode; EXTOUT_GL = 0x01
RMS
4-V
mode; EXTOUT_GL = 0x02
RMS
4-V
mode; EXTOUT_GL = 0x03
RMS
4-V
mode; EXTOUT_GL = 0x04
RMS
4-V
mode; EXTOUT_GL = 0x05
RMS
4-V
mode; EXTOUT_GL = 0x06
RMS
4-V
mode; EXTOUT_GL = 0x07
RMS
4-V
mode; EXTOUT_GL = 0x08
RMS
4-V
mode; EXTOUT_GL = 0x09
RMS
4-V
mode; EXTOUT_GL = 0x0A
RMS
4-V
mode; EXTOUT_GL = 0x0B
RMS
4-V
mode; EXTOUT_GL = 0x0C
RMS
4-V
mode; EXTOUT_GL = 0x0D
RMS
4-V
mode; EXTOUT_GL = 0x0E
RMS
4-V
mode; EXTOUT_GL = 0x0F
RMS
7-V
mode; EXTOUT_GL = 0x00
RMS
7-V
mode; EXTOUT_GL = 0x01
RMS
7-V
mode; EXTOUT_GL = 0x02
RMS
7-V
mode; EXTOUT_GL = 0x03
RMS
7-V
mode; EXTOUT_GL = 0x04
RMS
7-V
mode; EXTOUT_GL = 0x05
RMS
7-V
mode; EXTOUT_GL = 0x06
RMS
7-V
mode; EXTOUT_GL = 0x07
RMS
7-V
mode; EXTOUT_GL = 0x08
RMS
7-V
mode; EXTOUT_GL = 0x09
RMS
7-V
mode; EXTOUT_GL = 0x0A
RMS
7-V
mode; EXTOUT_GL = 0x0B
RMS
7-V
mode; EXTOUT_GL = 0x0C
RMS
7-V
mode; EXTOUT_GL = 0x0D
RMS
7-V
mode; EXTOUT_GL = 0x0E
RMS
7-V
mode; EXTOUT_GL = 0x0F
RMS
SPI programmable using EXTOUT bits
(OE1-OE2) = 20 V
PP
Reverse current to VEXT, OE1 or OE2 shorted to battery
(battery must be greater than 180% of VEXT)
= 4.75 to 5.25 V, T
IN
TEST CONDITIONS
COMAFE = 2.5 V; GAINCOS = GAINSIN = 0x00
COMAFE = 2.5 V; GAINCOS = GAINSIN = 0x01
COMAFE = 2.5 V; GAINCOS = GAINSIN = 0x02
COMAFE = 2.5 V; GAINCOS = GAINSIN = 0x03
S
= 0.75; C
= 0.75 COMAFE=2.5 V
GAIN
GAIN
Product Folder Links:
MIN
7.12
7.44
7.74
8.05
8.36
8.67
8.98
9.29
9.61
9.91
10.23
10.53
10.84
11.15
11.46
11.77
12.49
13.03
13.57
14.12
14.65
15.20
15.74
16.29
16.83
17.37
17.92
18.46
19
19.54
20.09
20.63
0.5
1
= –40°C to +125°C (unless otherwise noted).
A
MIN
0.5
8
30
0.735
0.98
2.205
3.43
Copyright © 2015–2017, Texas Instruments Incorporated
PGA411-Q1
www.ti.com
TYP
MAX
UNIT
8.38
8.75
9.11
9.47
9.84
10.2
10.57
10.93
11.3
11.66
12.03
12.39
12.75
13.12
13.48
13.85
V
PP
14.69
15.33
15.97
16.61
17.24
17.88
18.52
19.16
19.8
20.44
21.08
21.72
22.35
22.99
23.63
24.27
2
V
15
mA
145
mA
15
mA
TYP
MAX
UNIT
4.5
V
24
kHz
40
50
kΩ
0.75
0.765
1
1.02
V/V
2.25
2.295
3.5
3.57
3
Vpp
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