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 For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http://www.agere.com E-MAIL: [email protected] N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA PACIFIC: Agere Systems Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256 Tel. (65) 778 8833, FAX (65) 777 7495 CHINA: Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 88 Century Boulevard Pudong, Shanghai 200121 PRC Tel. (86) 21 50471212, FAX (86) 21 50472266 JAPAN: 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 EUROPE: Data Requests: DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148 Technical Inquiries:GERMANY: (49) 89 95086 0 (Munich), UNITED KINGDOM: (44) 1344 865 900 (Ascot), FRANCE: (33) 1 40 83 68 00 (Paris), SWEDEN: (46) 8 594 607 00 (Stockholm), FINLAND: (358) 9 3507670 (Helsinki), ITALY: (39) 02 6608131 (Milan), SPAIN: (34) 1 807 1441 (Madrid) 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