ZMD31020
Sensor Signal Conditioner
Datasheet
3.3 Electrical Parameters
(for TAMB = -40°C ... +125°C; supply voltage: 4.5V ... 5.5V; all voltages referred to VSSA = VSS)
3.3.1 Power Supply
PARAMETER
Supply current
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
IDD + IDDA
no sensor, no diode
connected;
VOUT open
7.7
mA
3.3.2 PGA & 12-bit Input ADC
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
Differential input voltage range options @ Input span VIN_SP = 52 mV/V; aIN = 15.66
Diff. inp. volt. range 1
Diff. inp. volt. range 2
Diff. inp. volt. range 3
Diff. inp. volt. range 4
Sensitivity
VIN_DIFF_1
VIN_DIFF_2
VIN_DIFF_3
VIN_DIFF_4
SIN
RSADC = 15/16
RSADC = 7/8
RSADC = 3/4
RSADC = 1/2
VDDA = 5V
-3
-6
49
46
39
26
mV/V
mV/V
-13
-26
mV/V
mV/V
73
µV/LSB
Differential input voltage range options @ Input span VIN_SP = 36 mV/V; aIN = 24
Diff. inp. volt. range 1
Diff. inp. volt. range 2
Diff. inp. volt. range 3
Diff. inp. volt. range 4
Sensitivity
VIN_DIFF_1
VIN_DIFF_2
VIN_DIFF_3
VIN_DIFF_4
SIN
RSADC = 15/16
RSADC = 7/8
RSADC = 3/4
RSADC = 1/2
VDDA=5V
-2
-4
34
32
27
18
mV/V
mV/V
-9
mV/V
-18
mV/V
50
µV/LSB
Differential input voltage range options @ Input span VIN_SP = 20 mV/V; aIN = 42
Diff. inp. volt. range 1
Diff. inp. volt. range 2
Diff. inp. volt. range 3
Diff. inp. volt. range 4
Sensitivity
VIN_DIFF_1
VIN_DIFF_2
VIN_DIFF_3
VIN_DIFF_4
SIN
RSADC = 15/16
RSADC = 7/8
RSADC = 3/4
RSADC = 1/2
VDDA=5V
-1
-2
19
18
15
10
mV/V
mV/V
-5
mV/V
-10
mV/V
29
µV/LSB
Diff. input offset current
IIN_OFF
-10
10
nA
Note, that the parameter “RSADC” is equal to the former “CRROB”.
3.3.3 Temperature Measurement: Current Sources, on-chip Diode & 12-bit ADC (4)
PARAMETER
Current source
SYMBOL
ITS
CONDITIONS
pin / pad VTN
MIN
20
TYP
MAX
55
UNIT
µA
40
TC current source (1)
Input voltage range
TC forward drop
Sensitivity
TCI_TS
VTN
pin / pad VTN
-2000
-810
-1.9
2000
-200
-2.3
1.1
ppm/K
mV
rel. to VDDB1 = VDDB2
on-chip temp. sensor
pin / pad VTN
TCDROP
ST
-2.1
mV/K
mV/ LSB
0.84
0.97
Copyright © 2004, ZMD AG, Rev. 1.6, 2005-05-19
11/19
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior
written consent of the copyright owner. The Information furnished in this publication is preliminary and subject to changes without notice.
ZMD [ Zentrum Mikroelektronik Dresden AG ]
