Cirrus Logic CS5508 User Manual

CS5505/6/7/8
Copyright Cirrus Logic, Inc. 2009
(All Rights Reserved)
http://www.cirrus.com
CS5505/6/7/8
Very Low Power, 16-bit & 20-bit A/D Converters
OCT ‘09
DS59F7
Very Low Power, 16-Bit and 20-Bit A/D Converters
Features
Description
l Very Low Power Consumption
- Single supply +5 V operation: 1.7 mW
- Dual supply ±5 V operation: 3.2 mW
l Offers superior performance to VFCs and
multi-slope integrating ADCs
l Differential Inputs
- Single-channel (CS5507/8) and Four-channel (CS5505/6) pseudo-differential versions
l Either 5 V or 3.3 V Digital Interface l Linearity Error:
- ±0.0015% FS (16-bit CS5505/7)
- ±0.0007% FS (20-bit CS5506/8)
l Output update rates up to 100 Sps l Flexible Serial Port l Pin-Selectable Unipolar/Bipolar Ranges
I
The CS5505/6/7/8 are a family of low power CMOS A/D converters which are ideal for measuring low-frequency signals representing physical, chemical, and biological processes.
The CS 5507/8 have single-channel differential anal
og and reference inputs while the CS5505/6 have four pseudo-differ
ential analog input channels. The CS5505/7 have a 16-bit output word. The CS5506/8 have a 20-bit output word.The CS5505/6/7/8 sample
ommand up to 100 Sps
upon c
.
The on-chip digital filter offers superior li ne rejection at 50 and 60 Hz when the device is operated from a
32.768 kHz clock (output word rate = 20 Sps).
The CS 5505/6/7/8 include on-chip self-calibration cir­cuitry whi
ch c
an be initiated at any time or temperature
to ensure minimum offset and full-scale errors.
The CS5505/6/7/8 serial port offers two general-purpose modes for the direct interface to shift r egisters or syn­chr microcontroll
s serial ports of indust
onou
ers.
ry-standard
ORDERING INFORMATION
See page 30.
Cirrus Logic, Inc. Crystal Semiconductor Products Division
P.O. Box 17847, Austin, Texas 78760 (512) 445 7222 FAX: (512) 445 7581 http://www.crystal.com
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MAR ‘95
DS59F4
1
CS5505/6/7/8
2 DS59F7
CS5505/6/7/8
ANALOG CHARACTERISTICS
±
3.3V
5%; VREF+ = 2.5V(external); VREF- = 0V; f
(TA = T
to T
MIN
= 32.768kHz; Bipolar Mode; R
CLK
; VA+ = 5V ± 10%; VA- = -5V ± 10%; VD+ =
MAX
= 1kΩ with a 10nF
source
to AGND at AIN; Anal og input channel AIN1+; AIN- = AGND; unless otherwise specified.) (Notes 1, 2)
CS5505/7-A CS5507-S
Parameter* Min Typ Max Min Typ Max Units
Specified Temperature Range -40 to +85 -55 to +125
°
C
Accuracy
Linearity Error - 0.0015 0.003 - 0.0015 0.003
Differential Nonlinearity -
Full Scale Error (Note 3) -
Full Scale Drift (Note 4) -
Unipolar Offset (Note 3) -
Unipolar Offset Drift (Note 4) -
Bipolar Offset (Note 3) -
Bipolar Offset Drift (Note 4) -
±
0.25
±
0.25
± ± ±
±
0.25
±
0.25
0.5
0.5
0.5
±
0.5
±
2
--
±
2
--
±
1
--
-
-
-
-
±
0.25
±
0.5
±
2
±
1
±
1
±
0.5
±
0.5
±
0.5
±
-LSB
±
-LSB
±
-LSB
±
%FS
LSB
16
LSB
LSB
LSB
16
16
16
16
16
16
2
4
2
Noise (Referred to Output) - 0.16 - - 0.16 - LSB-
rms
16
Notes: 1. The AIN pin presents a very high input resistance at dc and a minor dynamic load which scales to the
master clock frequency. Both sour ce resistance and shunt capacitance are therefore critical in determining the CS5505/6/7/8’s source impedance requirements. For more information refer to the text section
Analog Input Impedance Consi derations.
2. Specifications guaranteed by desi gn, characterization and/or test.
3. Applies after calibration at the temperature of interest.
4. Total drift over the specified temperature range since calibration at power-up at 25°C. Recalibration at any temperature will remove these errors.
Unipolar Mode Bipolar Mode
mV LSB’s % FS ppm FS LSB’s % FS ppm FS
10 0.26 0.0004 4 0.13 0.0002 2 19 0.50 0.0008 8 0.26 0.0004 4 38 1.00 0.0015 15 0.50 0.0008 8 76 2.00 0.0030 30 1.00 0.0015 15
152 4.00 0.0061 61 2.00 0.0030 30
VREF = 2.5V
CS5505/7; 16-Bit Unit Conversion Factors
* Refer to the Specification Definitions immediately following the Pin Description Section.
Specifications are subject to change without notice.
2 DS59F7
CS5505/6/7/8
DS59F7 3
CS5505/6/7/8
ANALOG CHARACTERISTICS
3.3V ± 5%; VREF+ = 2.5V (external); VREF- = 0V; f
(TA = T
to T
MIN
= 32.768kHz ; Bipolar Mode; R
CLK
; VA+ = 5V ± 10%; VA- = -5V ± 10%; VD+ =
MAX
source
= 1kΩ with a
10nF to AGND at AIN; Analog input channel AIN1+; AIN- = AGND; unless otherwise specified.) (Notes 1, 2)
CS5506/8-B CS5508-S
Parameter* Min Typ Max Min Typ Max Units
Specified Temperature Range -40 to +85 -55 to +125
°
Accuracy
Linearity Error - 0.0007 0.0015 - 0.0015 0.003
Differential Nonlinearity
±
%FS
Bits
(No Missing Codes) 20 - - 20 - -
Full Scale Error (Note 3) -
Full Scale Drift (Note 4) -
Unipolar Offset (Note 3) -
Unipolar Offset Drift (Note 4) -
Bipolar Offset (Note 3) -
Bipolar Offset Drift (Note 4) -
±
4
±
8
±
8
±
8
±
4
±
4
±
32
--
±
32
--
±
16
--
-
-
-
±
8
±
32
±
16
±
16
±
8
±
8
±
32
±
64
±
32
LSB
-LSB
LSB
-LSB
LSB
-LSB
Noise (Referred to Output) - 2.6 - - 2.6 - LSB-
rms
C
20
20
20
20
20
20
20
Unipolar Mode Bipolar Mode
mV LSB’s % FS ppm FS LSB’s % FS ppm FS
0.596 0.25 0.0000238 0.24 0.13 0.0000119 0.12
1.192 0.50 0.0000477 0.47 0.26 0.0000238 0.24
2.384 1.00 0.0000954 0.95 0.50 0.0000477 0.47
4.768 2.00 0.0001907 1.91 1.00 0.0000954 0.95
9.537 4.00 0.0003814 3.81 2.00 0.0001907 1.91 VREF = 2.5V
CS5506/8; 20-Bit Unit Conversion Factors
DYNAMIC CHARACTERISTICS
Parameter Symbol Ratio Units
f
Modulator Sampling Frequency f Output Update Rate (CONV = 1) f Filter Corner Frequency f
Settling Time to
1
⁄2 LSB (FS Step)
s
out
-3dB
t
s
/2 Hz
clk
f
/1622 Sps
clk
f
/1928 Hz
clk
1/f
out
s
DS59F7 3
CS5505/6/7/8
4 DS59F7
CS5505/6/7/8
ANALOG CHARACTERISTICS
3.3V ± 5%; VREF+ = 2.5V (external); VREF- = 0V; f 10nF to AGND at AIN; Analog input channel AIN1+; AIN- = AGND; unless otherwise specified.) (Notes 1, 2)
Parameter* Min Typ Max Min Typ Max Units
Specified Temperature Range -40 to +85 -55 to +125
(TA = T
to T
MIN
= 32.768kHz ; Bipolar Mode; R
CLK
CS5505/7 CS5506/8 CS5507/8-S
; VA+ = 5V
MAX
±
10%; VA- = -5V ± 10%; VD+ =
= 1kΩ with a
source
°
Analog Input
Analog Input Range: Unipolar (VAIN+)-(VAIN-) Bi polar (Note 5)
Common Mode Rejection: dc
50, 60 Hz (Note 6)-120
Off Channel Isolation - 120 - - 120 - dB
Input Capacitance - 15 - - 15 - pF
DC Bias Current (Note 1) - 5 - - 5 - nA
0 to +2.5
±
2.5
105
-
0 to +2.5
±
2.5
-
-
-
120
105
-
-
-
Volts Volts
dB dB
Voltage Reference (Output)
VREFOUT Voltage - (VA+)-2.5 - - (VA+)-2.5 - Volts
VREFOUT Voltage Tolerance - - 4.0 - - 4.0 %
C
VREFOUT Voltage Temperature Coefficient - 60 - - 60 -
VREFOUT Line Regulation - 1.5 - - 1.5 - mV/Volt
VREFOUT Output Voltage Noise
0.1 to 10 Hz
VREFOUT: Sour ce Current
Sink Current
-50- -50-
-
-
-
-
3
50
-
-
-
-
50
ppm/°C
µ
V
p-p
3
µ
A
µ
A
Power Supplies
DC Power Supply Currents: I
Power Dissipation: (Note 7)
SLEEP inactive SLEEP active
Power Supply Rejection: Positive Supplies
Negative Supplies
Notes: 5. Common mode voltage may be at any value as long as AIN+ and AIN- remain within the VA+ and
VA- supply voltages.
6. XIN = 32.768 kHz. Guaranteed by design and / or characterization.
7. All outputs unloaded. Al l inputs CMOS levels. SLEEP mode controlled by M/SLP pin. SLEEP active = M/SLP pin at (VD+)/2 input level.
Total
I
Analog
I
Digital
-
-
-
-
-
-
-
340 300
40
3.2 5
80 80
450
-
-
4.5 10
-
-
-
-
-
-
-
-
-
340 300
40
3.2 10
80 80
450
-
-
4.5 25
-
-
µ
A
µ
A
µ
A
mW
µ
W
dB dB
4 DS59F7
CS5505/6/7/8
DS59F7 5
CS5505/6/7/8
5V DIGITAL CHARACTERISTICS
(TA = T
MIN
to T
; VA+VD+ = 5V ± 10%; VA-= -5V ± 10%;
MAX
DGND = 0.) All measurements below are performed under static conditions. (Note 2)
Parameter Symbol Min Typ Max Units
High-Level Input Voltage: XIN
M/SLP
All Pins Except XIN and M/SLP
Low-Level Input Voltage: XIN
M/SLP
All Pins Except XIN and M/SLP
M/SLP SLEEP Active Threshold (Note 8) V
High-Level Output Voltage (Note 9) V
Low Level Output Vol tage I
= 1.6 mA V
out
Input Leakage Current I
3-State Leakage Current I
Digital Output Pi n Capacitance C
V V V
V V V
SLP
OH
OL
in
OZ
out
IH IH IH
IL IL IL
3.5
0.9VD+
2.0
-
-
-
-
-
-
-
-
-
-
-
-
1.5
0.1VD+
0.8
V V V
V V V
0.45VD+ 0.5VD+ 0.55VD+ V
(VD+)-1.0 - - V
--0.4V
-110
--
±10µ
µ
A
A
-9-pF
Notes: 8. Under normal operation this pin should be tied to VD+ or DGND. Anytime the voltage on the M/SLP
pin enters the SLEEP active threshold range the device will enter the power down condition. Returning to the active state r equires elapse of the power-on reset period, the oscillator to start-up, and elapse of the wake-up period.
9. I
= -100 µA. This guarantees the ability to drive one TTL load. (VOH = 2.4V @ I
out
= -40 µA).
out
3.3V DIGITAL CHARACTERISTICS
(TA = T
MIN
to T
; VA+ = 5V ± 10%; VD+ = 3.3V ± 5%;
MAX
VA-= -5V ± 10%; DGND = 0.) All measurements below are performed under static conditions. (Note 2)
Parameter Symbol Min Typ Max Units
High-Level Input Voltage: XIN
M/SLP
All Pins Except XIN and M/SLP
Low-Level Input Voltage: XIN
M/SLP
All Pins Except XIN and M/SLP
M/SLP SLEEP Active Threshold (Note 8) V
High-Level Output Voltage I
Low Level Output Vol tage I
= -400 µA
out
= 400 µA
out
Input Leakage Current I
3-State Leakage Current I
Digital Output Pi n Capacitance C
V
VIH
V
V
VIL
V
SLP
V
V
OZ
IH
IH
OH
OL
in
out
0.7VD+
0.9VD+
0.6VD+
IL
-
-
IL
-
-
-
-
-
-
-
0.3VD+
0.1VD+
0.16VD+
0.43VD+ 0.45VD+ 0.47VD+ V
(VD+)-0.3 - - V
--0.3V
-110
--
-9-pF
-
-
-
±10 µA
V V V
V V V
µA
DS59F7 5
CS5505/6/7/8
6 DS59F7
CS5505/6/7/8
5V SWITCHING CHARACTERISTICS
VA- = -5V ± 10%; Input Levels: Logic 0 = 0V, Logic 1 = VD+; C
(TA = T
to T
MIN
MAX;
= 50 pF.) (Note 2)
L
VA+, VD+ = 5V ± 10%;
Parameter Symbol Min Typ Max Units
Master Clock Frequency: Internal Oscillator: -A,B
-S
External Clock:
XIN
or
f
clk
30.0
30.0
30
32.768
32.768
-
53.0
34.0
163
kHz
kHz
kHz
Master Clock Duty Cycle 40 - 60 %
Rise Times: Any Digital Input (Note 10)
Any Digital Output
Fall Times: Any Digital Input (Note 10)
Any Digital Output
t
rise
t
fall
-
-
-
-
50
20
-
1.0
-
-
1.0
-
Start-Up
Power-On Reset Period (Note 11) t
Oscillator Start-up Time XTAL=32.768 kHz (Note 12) t
Wake-up Period (Note 13) t
res
osu
wup
-10-ms
- 500 - ms
- 1800/f
clk
-s
Calibration
CONV Pulse Width (CAL = 1) (Note 14) t
CONV and CAL High to Start of Calibration t
Start of Calibration to End of Calibration t
ccw
scl
cal
100 - - ns
--2/f
- 3246/f
clk
clk+200
-s
Conversion
µ
ns
µ
ns
ns
s
s
Set Up Time A0, A1 to CONV High t
Hold Time A0, A1 after CONV High t
CONV Pulse Width t
CONV High to Start of Conversion t
Set Up Time BP/UP stable prior to DRDY falling t
Hold Time BP/UP stable after DRDY falls t
Start of Conversion to End of Conversion (Note 15) t
sac
hca
cpw
scn
bus
buh
con
Notes: 10. Specified using 10% and 90% points on waveform of interest.
11. An internal power-on-reset is activated whenever power is applied to the device, or when coming out of a SLEEP state.
12. Oscillator start-up time var ies with the crystal parameters. This specification does not apply when using an external clock source.
13. The wake-up period begins once the oscillator starts; or when using an external f
, after the power-on reset time elapses.
clk
14. Calibration can also be initiated by pulsing CAL high while CONV=1.
15. Conversion time will be 1622/f
if CONV remains high continuously.
clk
50 - - ns
100 - - ns
100 - - ns
--2/f
82/f
clk
--s
+200 ns
clk
0--ns
- 1624/f
clk
-s
6 DS59F7
CS5505/6/7/8
DS59F7 7
CS5505/6/7/8
3.3V SWITCHING CHARACTERISTICS
(TA = T
MIN
to T
VA+ = 5V ± 10%;
MAX
VD+ = 3.3V ± 5%; VA- = -5V ± 10%; Input Levels: Logic 0 = 0V, Logic 1 = VD+ ; CL = 50 pF.) (Note 2)
Parameter Symbol Min Typ Max Units
Master Clock Frequency: Internal Oscillator: -A,B
-S
External Clock:
XIN
or
f
clk
30.0
30.0
30
32.768
32.768
-
53.0
34.0
163
kHz
kHz
kHz
Master Clock Duty Cycle 40 - 60 %
Rise Times: Any Digital Input (Note 10)
Any Digital Output
Fall Times: Any Digital Input (Note 10)
Any Digital Output
t
rise
t
fall
-
-
-
-
50
20
-
1.0
-
-
1.0
-
Start-Up
Power-On Reset Period (Note 11) t
Oscillator Start-up Time XTAL=32.768 kHz (Note 12) t
Wake-up Period (Note 13) t
res
osu
wup
-10-ms
- 500 - ms
- 1800/f
clk
-s
Calibration
CONV Pulse Width (CAL = 1) (Note 14) t
CONV and CAL High to Start of Calibration t
Start of Calibration to End of Calibration t
ccw
scl
cal
100 - - ns
--2/f
- 3246/f
clk
200 ns
clk+
-s
Conversion
µ
ns
µ
ns
s
s
Set Up Time A0, A1 to CONV High t
Hold Time A0, A1 after CONV High t
CONV Pulse Width t
CONV High to Start of Conversion t
Set Up Time BP/UP stable prior to DRDY falling t
Hold Time BP/UP stable after DRDY falls t
Start of Conversion to End of Conversion (Note 15) t
sac
hca
cpw
scn
bus
buh
con
50 - - ns
100 - - ns
100 - - ns
--2/f
82/f
clk
--s
+200 ns
clk
0--ns
- 1624/f
clk
-s
DS59F4 7
XIN
CS5505/6/7/8
8 DS59F7
XIN/2
CS5505/6/7/8
CAL
CONV
STATE
XIN
XIN/2
A0, A1
CONV
DRDY
t
ccw
t
scl
t
cal
Calibration StandbyStandby
Figure 1. Calibration Timing (Not to Scale)
t
sac
t
cpw
t
hca
BP/UP
t
STATE
t
scn
t
con
Conversion StandbyStandby
bus
t
buh
Figure 2. Conversion Timing (Not to Scale)
8 DS59F4
CS5505/6/7/8
DS59F7 9
CS5505/6/7/8
5V SWITCHING CHARACTERISTICS
(TA = T
MIN
VA- = -5V ± 10%; Input Levels: Logic 0 = 0V, Logic 1 = VD+; C
Parameter Symbol Min Typ Max Units
SSC Mode (M/SLP = VD+)
Access Time: CS Low to SDATA out (DRDY = low)
DRDY falling to MSB (CS = low)
SDATA Delay Time: SCLK falling to next SDATA bit t
SCLK Delay Time SDATA MSB bit to SCLK rising t
Serial Clock (Out) Pulse Width High
Pulse Width Low
Output Float Delay: CS high to output Hi-Z (Note 16)
SCLK rising to SDATA Hi-Z
SEC Mode (M/SLP = DGND)
Serial Clock (In) f
Serial Clock (In) Pulse Width High
Pulse Width Low
Access Time: CS Low to data valid (Note 17) t
Maximum Delay time: (Note 18)
SCLK falling to new SDATA bit t
Output Float Delay: CS high to output Hi-Z (Note 16)
SCLK falling to SDATA Hi-Z
Notes: 16. If
CS is returned high before all data bits are output, the SDATA and SCLK outputs will complete the
current data bit and then go to high impedance.
CS is activated asynchronously to DRDY, CS will not be recognized if it occ urs when DRDY is high
17. If for 2 clock cycles. The propagation delay time may be as great as 2 f guarantee proper clocking of SDATA when using asynchronous sooner than 2 f
+ 200 ns after
clk
CS goes low.
18. SDATA transitions on the falling edge of SCLK. Note that a rising SCLK must occur to enable the serial port shifting mechanism before falling edges can be recognized.
to T
= 50 pF.) (Note 2)
L
t
csd1
t
dfd
dd1
cd1
t
ph1
t
pl1
t
fd1
t
fd2
sclk
t
ph2
t
pl2
csd2
dd2
t
fd3
t
fd4
VA+, VD+ = 5V ± 10%;
MAX;
-
-
- 80 250 ns
-1/f
-
-
-
-
0-2.5MHz
200 200
- 60 200 ns
- 150 310 ns
-
-
CS, SCLK(i) should not be taken high
-
2/f
clk
clk
1/f
clk
1/f
clk
-
1/f
clk
-
-
60
160
cycles plus 200 ns. T o
clk
2/fclk 3/f
clk
-ns
-
-
2/f
clk
-
-
-
150 300
ns ns
ns ns
ns ns
ns ns
ns ns
DS59F7 9
CS5505/6/7/8
10 DS59F7
CS5505/6/7/8
3.3V SWITCHING CHARACTERISTICS
(TA = T
MIN
to T
5%; VA- = -5V ± 10%; Input Levels: Logic 0 = 0V, Logic 1 = VD+; C
Parameter Symbol Min Typ Max Units
SSC Mode (M/SLP = VD+)
Access Time: CS Low to SDATA out (DRDY = low)
DRDY falling to MSB (CS = low)
SDATA Delay Time: SCLK falling to next SDATA bit t
SCLK Delay Time SDATA MSB bit to SCLK rising t
Serial Clock (Out) Pulse Width High
Pulse Width Low
Output Float Delay: CS high to output Hi-Z (Note 16)
SCLK rising to SDATA Hi-Z
t
csd1
t
dfd
dd1
cd1
t
ph1
t
pl1
t
fd1
t
fd2
SEC Mode (M/SLP = DGND)
Serial Clock (In) f
Serial Clock (In) Pulse Width High
Pulse Width Low
Access Time: CS Low to data valid (Note 17) t
sclk
t
ph2
t
pl2
csd2
Maximum Delay time: (Note 18)
SCLK falling to new SDATA bit t
Output Float Delay: CS high to output Hi-Z (Note 16)
SCLK falling to SDATA Hi-Z
dd2
t
fd3
t
fd4
VA+ = 5V ± 10%; VD+ = 3.3V
MAX
= 50 pF.) (Note 2)
L
-
-
2/f
-
clk
- 265 400 ns
-1/f
-
-
-
-
1/f 1/f
1/f
clk
clk clk
-
clk
0 - 1.25 MHz
200 200
-
-
- 100 200 ns
- 400 600 ns
-
-
70
320
±
2/fclk 3/f
clk
ns ns
-ns
2/f
150 500
-
-
clk
-
-
-
ns ns
ns ns
ns ns
ns ns
10 DS59F4
XIN
CS5505/6/7/8
DS59F7 11
XIN/2
CONV
CS
t
csd1
CS5505/6/7/8
STATE
DRDY
SCLK(o)
SDATA(o)
Hi-Z
Hi-Z
STATE (CONV held high)
DRDY
CS
SDATA(o) Hi-Z
SCLK(i)
StandbyStandby Conversion Conversion
t
ph1
t
pl1
Conversion1
t
cd1
MSB MSB-1
Conversion2
t
dd1
Figure 3. Timing Relationships; SSC Mode (Not to Scale)
t
csd2
t
dd2
MSB-1MSB MSB-2
t
fd2
LSB+1 LSB
t
fd3
Hi-Z
Hi-Z
DRDY
CS
t
SDATA(o) Hi-Z
SCLK(i)
csd2
t
dd2
MSB-1MSB LSB+2 LSB+1 LSB
t
ph2
t
pl2
t
fd4
Figure 4. Timing Rela tionships; SEC Mode ( Not to Scale)
DS59F4 11
CS5505/6/7/8
12 DS59F7
RECOMMENDED OPERATING CONDITIONS (DGND = 0V) (Note 19)
Parameter Symbol Min Typ Max Units
CS5505/6/7/8
DC Power Supplies: Positive Digital
(VA+)-(VA-) Positive Analog Negative Analog
Analog Reference Voltage (Note 20) (VREF+)-(VREF-) 1.0 2.5 3.6 V
Analog Input Voltage: (Note 21)
Unipolar Bipolar
Notes: 19. All voltages with r espect to ground.
20. The CS5505/6/7/8 can be operated with a reference voltage as low as 100 mV; but with a corresponding reduction in nois e-free resolution. The common mode voltage of the voltage reference may be any value as long as +V REF and -VREF remain inside the supply values of VA+ and VA-.
21. The CS5505/6/7/8 can acc ept input voltages up to the analog supplies (VA+ and VA-). In unipolar mode the CS5505/6/7/8 will output all 1’s if the dc input magnitude ( (AIN+)-(AIN-)) exceeds ((VREF+)-(VREF-)) and will output all 0’s if the input becomes more negative than 0 Volts. In bipolar mode the CS5505/6/7/8 will output all 1’s if the dc input magnitude ((AIN+)-(AIN-)) exceeds ((VREF+)-(VREF-)) and will output all 0’s if the input becomes more negative in magnitude than
-((VREF+)-(VREF-)).
VD+ V
diff
VA+
VA-
VAIN VAIN
-((VREF+)-(VREF-))--
3.15
4.75
4.5 0
0
5.0 10
5.0
-5.0
(VREF+)-(VREF-)
+((VREF+)-(VREF-))VV
5.5 11 11
-5.5
ABSOLUTE MAXIMUM RATINGS*
Parameter Symbol Min Typ Max Units
V V V V
DC Power Supplies: Digital Ground (Note 22)
Positive Digital (Note 23) Positive Analog Negative Analog (VA+)-(VA-) (VA+)-(VD+)
Input Current, Any Pin Except Supplies (Notes 24, 25) I
Analog Input Voltage AIN and VREF pins V
Digital Input Voltage V
Ambient Operating Temperature T
Storage Temperature T
Notes: 22. No pin should go more positive than (VA+)+0.3V.
23. VD+ must always be less than (VA+)+0.3 V,and can never exceed 6.0V.
24. Applies to all pins including continuous overvoltage conditions at the analog input (AIN) pin.
25. Transient currents of up to 100mA will not cause SCR latch-up. Maximum input current for a power
supply pin is ± 50 mA.
* WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
DGND
VD+ VA+
VA-
V
diff1
V
diff2
in
INA
IND
A
stg
-0.3
-0.3
-0.3
+0.3
-0.3
-0.3
--
(VA-)-0.3 - (VA+)+0.3 V
-0.3 - (VD+)+0.3 V
-55 - 125
-65 - 150
-
-
-
-
-
-
(VD+)-0.3
6.0 or VA+
12.0
-6.0
12.0
12.0
±
10
V V V V V V
mA
°
C
°
C
12 DS59F4
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