AGERE LSP2916

Preliminary Data Sheet
July 2001
LSP2916 16-Channel, High-Voltage Driver
Features
■
16 amplifier channels available in one package.
■
Outputs from 0 V to –298 V per channel.
■
■
■
Programmable output current limit (50 µA to
300 µA).
Fixed gain set by internal resistors. (The fixed gain
for version A is –32 V/V, and –66 V/V for version
B.)
Minimal external components.
The LSP2916 requires one negative high-voltage
power supply (VHN) and one positive 5 V analog
power supply (VLP). Corresponding to the 16
channels, there are 16 negative input voltage pins,
–INx (x = 1, 2, . . . , 16), and the corresponding 16
output pins, OUTPUTx (x = 1, 2, . . . , 16).
+IN is the noninverting input for all 16 amplifiers,
which means all the amplifiers share the same
noninverting input. +IN should be connected to GND
for typical applications. IBIAS pin will set the current
limit for the amplifiers by connecting it to an external
resistor. The LSP2916 is available in a leaded
surface-mount 64-pin MQFP package.
Applications
■
■
Optical crosspoint switches.
Block Diagram
Optical microelectromechanical systems (MEMS)
components.
LSP2916
RF
Description
This LSP2916 16-channel, high-voltage (HV) driver
is targeted for microoptomechanical systems. Each
device contains 16 high-voltage amplifiers with an
output voltage range of 0 V to –298 V. Internal gainsetting resistors provide a fixed gain of –32 V/V,
thereby minimizing external component count. Each
amplifier can output up to 300 µA, ideal for deflection
and control of optical MEMS mirrors. Output current
limit is programmed by an external resistor.
Additionally, careful attention was paid to minimizing
offset drift and gain variation over temperature. The
internal block diagram is shown in Figure 1. There
are two versions, version A (LSP2916A) and version
B (LSP2916B). For version A, RF = 8 MΩ and
RIN = 250 kΩ; and for version B, RF = 8.25 MΩ and
RIN = 125 kΩ. So LSP2916A has the fixed gain of
–32 V/V and LSP2916B has the fixed gain of
–66 V/V.
–IN1
RIN
–
OUTPUT 1
+
RF
–IN16
RIN
–
OUTPUT 16
+IN
+
1682(F)
Figure 1. LSP2916 Internal Functional Block
Diagram
Preliminary Data Sheet
July 2001
LSP2916 16-Channel, High-Voltage Driver
Description (continued)
Typical Application Circuit
0.1 µF
10 Ω
0.1 µF
LSP2916
VHN
VLP
RF
DAC
RIN
–IN1
–
OUTPUT 1
+
MEMS
MATRIX
RF
DAC
RIN
–IN16
–
OUTPUT 16
+
+IN
GND
Rib = 143 kΩ
1683(F)
Figure 2. Typical Application Circuit
2
Agere Systems Inc.
Preliminary Data Sheet
July 2001
LSP2916 16-Channel, High-Voltage Driver
OUTPUT9
NC
OUTPUT10
NC
OUTPUT11
NC
OUTPUT12
NC
OUTPUT13
NC
OUTPUT14
NC
OUTPUT15
NC
NC
OUTPUT16
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
Pin Information
12
37
–IN4
–IN6
13
36
–IN3
–IN7
14
35
–IN2
–IN8
15
34
–IN1
NC
16
33
NC
32
GND
–IN5
VHN
38
31
11
OUTPUT1
VLP
NC
30
39
NC
10
29
IBIAS
NC
OUTPUT2
40
28
9
NC
NC
NC
27
41
OUTPUT3
8
26
NC
NC
25
42
NC
7
24
+IN
NC
OUTPUT4
43
NC
6
23
–IN13
NC
OUTPUT5
44
22
5
NC
–IN14
–IN12
21
45
OUTPUT6
4
20
–IN15
–IN11
NC
46
19
3
OUTPUT7
–IN16
–IN10
18
NC
47
17
48
2
NC
1
OUTPUT8
NC
–IN9
1541.a(F)
Figure 3. External Connections
Table 1. LSP2916 Pin Order
Pin
Number
Symbol
Pin
Number
Symbol
Pin
Number
Symbol
Pin
Number
Symbol
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NC
–IN9
–IN10
–IN11
–IN12
NC
NC
NC
NC
NC
NC
–IN5
–IN6
–IN7
–IN8
NC
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
OUTPUT8
NC
OUTPUT7
NC
OUTPUT6
NC
OUTPUT5
NC
OUTPUT4
NC
OUTPUT3
NC
OUTPUT2
NC
OUTPUT1
VHN
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
NC
–IN1
–IN2
–IN3
–IN4
GND
VLP
IBIAS
NC
NC
+IN
–IN13
–IN14
–IN15
–IN16
NC
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
OUTPUT16
NC
NC
OUTPUT15
NC
OUTPUT14
NC
OUTPUT13
NC
OUTPUT12
NC
OUTPUT11
NC
OUTPUT10
NC
OUTPUT9
Agere Systems Inc.
3
Preliminary Data Sheet
July 2001
LSP2916 16-Channel, High-Voltage Driver
Pin Information (continued)
Table 2. LSP2916 Pin Description
Pin Name
Function
Pin Total
Counts
VLP
GND
VHN
IBIAS
+IN
–INx
OUTPUTx
Power Supply
Ground
VHN < |–298| V
Current Limit Control
Analog Input
Analog Input
Analog Output
1
1
1
1
1
16
16
Description
5 V analog power supply.
Analog ground.
High-voltage negative supply.
Sets current limit with external resistor to GND.
Noninverting input for all channels.
Inverting input for each channel.
Output.
Absolute Maximum Ratings
Application Notes
Stresses in excess of the absolute maximum ratings
can cause permanent damage to the device. These are
absolute stress ratings only. Functional operation of the
device is not implied at these or any other conditions in
excess of those given in the operational sections of the
data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect device reliability.
LSP2916 is recommended for MEMS optical systems.
It features programmable current limit while the output
can swing up to –298 V. With all the feedback resistors
inside the chip, there is no more need for these resistors in the external circuit.
Table 3. Absolute Maximum Ratings
LSP2916 is designed to operate up to 298 V negative
power supply, so special care should be paid to safety
issues.
Parameter
Power Supply:
VHN
VLP
Operating Temperature
Storage Temperature
Ambient Temperature
Min
Typ
Max
0
–160.0 –298.0
4.5
5.0
5.5
–5
25
85
–40
—
85
–5
25
70
Unit
V
V
°C
°C
°C
Handling Precautions
Safety Handling for the High-Voltage Device
Bypass Capacitors/Protection Series Resistor for
the Power Supplies
To minimize noise coupling to the output, a 0.1 µF
bypass capacitor should be placed as close as
possible to all power supply pins. Additionally, to avoid
the possible degradation of the LSP2916 when VHN is
hot switched, a 10 Ω series resistor between the VHN
pin and the VHN power supply is required.
Although protection circuitry has been designed for this
device, proper precautions should be taken to avoid
exposure to electrostatic discharge (ESD) during
handling and mounting. Agere Systems Inc. employs a
human-body model (HMB) and charged-device model
(CDM) for ESD-susceptibility testing and protection
design evaluation. ESD voltage thresholds are
dependent on the circuit parameters used in the
defined model. No industry-wide standard has been
adopted for CDM. However, a standard HBM
(resistance = 1500 Ω, capacitance = 100 pF) is widely
used, and therefore, can be used for comparison
purposes. The HBM ESD threshold (>500 V) presented
here was obtained by using these circuit parameters.
4
Agere Systems Inc.
Preliminary Data Sheet
July 2001
LSP2916 16-Channel, High-Voltage Driver
Electrical Characteristics
Table 4. Electrical Characteristics
TA = 25 °C, VLP = 5 V, VHN = –200 V, noninverting input +IN = 0 V, IBIAS resistor = 143 kΩ.
Parameters
Symbol
Condition
Min
Typ
Max
Unit
2916A 2916B 2916A 2916B 2916A 2916B
Input Characteristics
Input Resistance
R
Input Offset Voltage*
—
Input Offset Voltage
Drift
—
Input Noise
—
–IN = 5 V
–IN = 0 V
–IN = 0 V
125
200
500
kΩ
–20
0
20
mV
—
4
—
µV/°C
0 °C—70 °C
Input Bias Current
I(–INx)
f ≤ 10 kHz
C = 150 pF
R = 10 MΩ
–IN = 5 V
Input Bias Current
I(+IN)
–IN = 5 V
–40
0
40
nA
Power Supply
Rejection Ratio
PSRR
VHN
VLP
No load
No load
—
—
85
52
—
—
dB
dB
–IN
—
–0.5
—
10
V
G
GTC
–IN = 3 mV
—
—
32.0 66.0
–1.25 x 10 –5
—
—
—
Input Range
—
10.3
—
µVrms
12.5
25
50
µA
Gain
Voltage Gain
Gain Temperature
Coefficient
Channel-to-Channel
Gain Match
30.4
63.0
33.6
69.0
V/V
—
—
2
—
%
Amplifier Output Characteristics
Output Resistance
—
—
10
90
125
kΩ
Amplifier Current Limit
—
Rib = 143 kΩ
100
—
—
—
115
VLPD – 3 V ‡
µA
Output Voltage
85
VHN + 2.5 V †
–3 dB Bandwidth
—
—
—
6.5
—
kHz
Slew Rate
Rising
Falling
—
Input pulse = 0 V—4 V
C = 150 pF and
R = 10 MΩ
—
—
0.62
0.54
—
—
V/µs
V/µs
Settling Time
Rising
Falling
Crosstalk§
Adjacent Channel
Nonadjacent Channel
—
Input pulse = 0 V—4 V
C = 150 pF and
R = 10 MΩ
—
—
277
309
—
—
µs
µs
C = 150 pF
f = 1 kHz
R = 16 MΩ
—
—
–71
–80
—
—
dB
dB
V
Dynamics Characteristics
—
—
* Input offset voltage = (VOFFSET voltage/gain), the test condition is for the offset output voltage.
† –IN = 10 V.
‡ –IN = –0.25 V.
§ Using an OP27 as buffer, test measurement was taken at the output of OP27.
Agere Systems Inc.
5
Preliminary Data Sheet
July 2001
LSP2916 16-Channel, High-Voltage Driver
Electrical Characteristics (continued)
Table 4. Electrical Characteristics (continued)
TA = 25 °C, VLP = 5 V, VHN = –200 V, noninverting input +IN = 0 V, IBIAS resistor = 143 kΩ.
Parameters
Symbol
Condition
Min
Typ
Max
Unit
2916A 2916B 2916A 2916B 2916A 2916B
Power Supply Currents at Room Temperature
VHN = –160.0 V
I(VHN)
Quiescent Current
VLP = 5.0 V
I(VLPA)
Power Consumption
*
†
‡
§
6
P
VHN = –160.0 V
VLP = 5.0 V
1.30
1.55
1.80
mA
1.36
1.60
1.85
mA
—
256
—
mW
Input offset voltage = (VOFFSET voltage/gain), the test condition is for the offset output voltage.
–IN = 10 V.
–IN = –0.25 V.
Using an OP27 as buffer, test measurement was taken at the output of OP27.
Agere Systems Inc.
Preliminary Data Sheet
July 2001
LSP2916 16-Channel, High-Voltage Driver
Electrical Characteristics (continued)
350
300
250
Rib (kΩ)
CURRENT FROM VHN (mA)
1.65
1.6
1.55
200
150
100
1.5
50
1.45
1.4
0
-20 -10
0
10
20
30
40
50
60
70
80
0.05
0.1
0.15
0.2
CURRENT (mA)
0.25
0.3
90 100 110
1686(F)
TEMPERATURE (ºC)
2286(F)
Figure 6. Resistor (Rib) vs. Output Current Limit
Note: Test conditions for the LSP2916A are: VHN = –200 V,
VLP = 5 V, Rib = 144 kΩ.
Figure 4. Current from VHN vs. Temperature
31.7
NORMALIZED GAIN
31.65
CURRENT FROM VLP (mA)
1.65
1.6
1.55
31.6
31.55
31.5
1.5
31.45
1.45
1.009
2
3.008
4.006
5.002
6.001
INPUT (V)
2285(F)
1.4
1.35
-20 -10
0
10
20
30
40
50
60
70
80
90
100 110
Note: Test conditions for the LSP2916A are: VHN = –200 V,
VLP = 5 V, Rib = 144 kΩ.
TEMPERATURE (ºC)
2287(F)
Figure 7. Gain vs. Output Voltage (VHN = –160 V)
Note: Test conditions for the LSP2916A are: VHN = –200 V,
VLP = 5 V, Rib = 144 kΩ.
Figure 5. Current from VLP vs. Temperature
Figure 6 shows the output current range when different
resistances are applied to pin IBIAS.
Test condition: maximum current limit is 300 µA.
1
0.8
0.6
0.4
0.2
0
100 200 500 1000 2000 3000 4000 5000 5500 6000 6500 7000 8000
FREQUENCY (Hz)
Table 5. Output Current Range at Different
Resistances on IBIAS
2288(F)
Resistance on IBIAS
Min
Typ
Max
Unit
143 kΩ
70.3 kΩ
45.2 kΩ
85
170
255
100
200
300
115
230
345
µA
µA
µA
Agere Systems Inc.
NORMALIZED OUTPUT
Output Current Range at Different
Resistance on Pin IBIAS
1.2
Note: Test conditions for the LSP2916A are: VHN = –200 V,
VLP = 5 V, Rib = 144 kΩ.
Figure 8. –3 dB Plot
7
Preliminary Data Sheet
July 2001
LSP2916 16-Channel, High-Voltage Driver
LSP2916AHA/LSP2916BHA Package Diagram
17.20 ± 0.25
14.00 ± 0.20
PIN #1 IDENTIFIER ZONE
64
1.60 REF
49
1
0.25
48
GAGE PLANE
SEATING PLANE
0.73/1.03
14.00
± 0.20
DETAIL A
17.20
± 0.25
33
16
0.30/0.40
17
32
12.00 REF
0.30/0.45
0.20
M
DETAIL B
DETAIL A
DETAIL B
1.80/2.20
2.45 MAX
SEATING PLANE
0.10
0.80 BSC
0.25 MAX
5-5202.a(F)
8
Agere Systems Inc.
Preliminary Data Sheet
July 2001
LSP2916 16-Channel, High-Voltage Driver
Ordering Information
Version
Device Code
Temperature Range
Package
LSP2916A
LSP2916B
LSP2916AHA
LSP2916BHA
0 °C—70 °C
0 °C—70 °C
64 MQFP
64 MQFP
Agere Systems Inc.
9
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Tel. (65) 778 8833, FAX (65) 777 7495
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Tel. (86) 21 50471212, FAX (86) 21 50472266
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Agere Systems Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan
Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700
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Data Requests: DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148
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Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.
Copyright © 2001 Agere Systems Inc.
All Rights Reserved
Printed in U.S.A.
July 2001
DS01-023ASP